./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench/hard2.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_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/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_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench/hard2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/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_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/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 966f2b433cfe84d90040e5149c3cdda56fb59546e621a76bee869282a92c61d4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:29:41,402 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:29:41,514 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-27 23:29:41,523 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:29:41,523 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:29:41,559 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:29:41,560 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:29:41,561 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:29:41,561 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:29:41,561 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:29:41,562 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:29:41,562 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:29:41,563 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:29:41,563 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:29:41,563 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:29:41,563 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:29:41,564 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:29:41,564 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:29:41,564 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:29:41,564 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:29:41,564 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:29:41,564 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:29:41,564 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:29:41,564 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:29:41,564 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-27 23:29:41,564 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 23:29:41,564 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:29:41,565 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:29:41,565 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:29:41,565 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:29:41,565 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:29:41,565 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:29:41,566 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:29:41,566 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:29:41,566 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:29:41,566 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:29:41,566 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:29:41,566 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:29:41,566 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:29:41,566 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:29:41,566 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:29:41,566 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:29:41,566 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:29:41,567 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:29:41,567 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:29:41,567 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:29:41,567 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:29:41,567 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:29:41,567 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:29:41,567 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:29:41,568 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_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/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 -> 966f2b433cfe84d90040e5149c3cdda56fb59546e621a76bee869282a92c61d4 [2024-11-27 23:29:41,878 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:29:41,890 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:29:41,894 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:29:41,896 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:29:41,897 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:29:41,898 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench/hard2.c [2024-11-27 23:29:44,893 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/data/cacd84dec/bf0edc4f73ab488e8631a6ec41c19609/FLAG4848b7561 [2024-11-27 23:29:45,183 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:29:45,184 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/sv-benchmarks/c/nla-digbench/hard2.c [2024-11-27 23:29:45,192 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/data/cacd84dec/bf0edc4f73ab488e8631a6ec41c19609/FLAG4848b7561 [2024-11-27 23:29:45,461 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/data/cacd84dec/bf0edc4f73ab488e8631a6ec41c19609 [2024-11-27 23:29:45,464 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:29:45,467 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:29:45,468 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:29:45,469 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:29:45,473 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:29:45,474 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:29:45" (1/1) ... [2024-11-27 23:29:45,475 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c2438cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:29:45, skipping insertion in model container [2024-11-27 23:29:45,475 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:29:45" (1/1) ... [2024-11-27 23:29:45,493 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:29:45,706 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:29:45,725 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:29:45,750 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:29:45,768 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:29:45,769 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:29:45 WrapperNode [2024-11-27 23:29:45,769 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:29:45,770 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:29:45,770 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:29:45,770 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:29:45,782 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:29:45" (1/1) ... [2024-11-27 23:29:45,790 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:29:45" (1/1) ... [2024-11-27 23:29:45,821 INFO L138 Inliner]: procedures = 14, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 88 [2024-11-27 23:29:45,824 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:29:45,825 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:29:45,825 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:29:45,825 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:29:45,834 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:29:45" (1/1) ... [2024-11-27 23:29:45,835 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:29:45" (1/1) ... [2024-11-27 23:29:45,836 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:29:45" (1/1) ... [2024-11-27 23:29:45,848 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-11-27 23:29:45,848 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:29:45" (1/1) ... [2024-11-27 23:29:45,848 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:29:45" (1/1) ... [2024-11-27 23:29:45,851 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:29:45" (1/1) ... [2024-11-27 23:29:45,855 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:29:45" (1/1) ... [2024-11-27 23:29:45,859 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:29:45" (1/1) ... [2024-11-27 23:29:45,864 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:29:45" (1/1) ... [2024-11-27 23:29:45,864 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:29:45" (1/1) ... [2024-11-27 23:29:45,866 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:29:45,866 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:29:45,867 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:29:45,867 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:29:45,871 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:29:45" (1/1) ... [2024-11-27 23:29:45,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:29:45,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:45,910 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:29:45,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:29:45,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:29:45,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:29:45,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-27 23:29:45,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:29:45,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:29:45,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-27 23:29:45,943 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-27 23:29:46,000 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:29:46,004 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:29:46,319 INFO L? ?]: Removed 49 outVars from TransFormulas that were not future-live. [2024-11-27 23:29:46,319 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:29:46,331 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:29:46,331 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-27 23:29:46,332 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:29:46 BoogieIcfgContainer [2024-11-27 23:29:46,332 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:29:46,335 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:29:46,335 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:29:46,340 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:29:46,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:29:45" (1/3) ... [2024-11-27 23:29:46,341 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d60273a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:29:46, skipping insertion in model container [2024-11-27 23:29:46,342 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:29:45" (2/3) ... [2024-11-27 23:29:46,342 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d60273a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:29:46, skipping insertion in model container [2024-11-27 23:29:46,342 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:29:46" (3/3) ... [2024-11-27 23:29:46,344 INFO L128 eAbstractionObserver]: Analyzing ICFG hard2.c [2024-11-27 23:29:46,363 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:29:46,365 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hard2.c that has 2 procedures, 70 locations, 1 initial locations, 2 loop locations, and 24 error locations. [2024-11-27 23:29:46,440 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:29:46,457 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;@85a0f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:29:46,457 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-11-27 23:29:46,462 INFO L276 IsEmpty]: Start isEmpty. Operand has 70 states, 38 states have (on average 1.8157894736842106) internal successors, (69), 61 states have internal predecessors, (69), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-27 23:29:46,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-27 23:29:46,469 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:46,470 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-27 23:29:46,471 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:29:46,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:46,478 INFO L85 PathProgramCache]: Analyzing trace with hash 926476, now seen corresponding path program 1 times [2024-11-27 23:29:46,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:46,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069164526] [2024-11-27 23:29:46,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:46,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:46,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:46,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:29:46,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:46,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069164526] [2024-11-27 23:29:46,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069164526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:46,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:29:46,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:29:46,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418997480] [2024-11-27 23:29:46,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:46,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 23:29:46,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:46,644 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 23:29:46,645 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:29:46,647 INFO L87 Difference]: Start difference. First operand has 70 states, 38 states have (on average 1.8157894736842106) internal successors, (69), 61 states have internal predecessors, (69), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:29:46,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:46,674 INFO L93 Difference]: Finished difference Result 137 states and 170 transitions. [2024-11-27 23:29:46,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 23:29:46,676 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-27 23:29:46,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:46,684 INFO L225 Difference]: With dead ends: 137 [2024-11-27 23:29:46,684 INFO L226 Difference]: Without dead ends: 62 [2024-11-27 23:29:46,688 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:29:46,691 INFO L435 NwaCegarLoop]: 77 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, 77 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 [2024-11-27 23:29:46,692 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:29:46,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-11-27 23:29:46,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2024-11-27 23:29:46,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 32 states have (on average 1.8125) internal successors, (58), 55 states have internal predecessors, (58), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-27 23:29:46,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 68 transitions. [2024-11-27 23:29:46,733 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 68 transitions. Word has length 4 [2024-11-27 23:29:46,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:46,734 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 68 transitions. [2024-11-27 23:29:46,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:29:46,734 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 68 transitions. [2024-11-27 23:29:46,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-27 23:29:46,735 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:46,735 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:46,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 23:29:46,736 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:29:46,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:46,737 INFO L85 PathProgramCache]: Analyzing trace with hash 329569702, now seen corresponding path program 1 times [2024-11-27 23:29:46,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:46,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909954967] [2024-11-27 23:29:46,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:46,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:46,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:29:46,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [745298626] [2024-11-27 23:29:46,763 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:46,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:46,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:46,768 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:46,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 23:29:46,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:46,828 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 23:29:46,834 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:46,928 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 23:29:46,928 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:29:46,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:46,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909954967] [2024-11-27 23:29:46,929 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:29:46,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [745298626] [2024-11-27 23:29:46,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [745298626] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:46,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:29:46,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:29:46,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660678103] [2024-11-27 23:29:46,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:46,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:29:46,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:46,932 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:29:46,932 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:29:46,932 INFO L87 Difference]: Start difference. First operand 62 states and 68 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 23:29:47,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:47,081 INFO L93 Difference]: Finished difference Result 131 states and 152 transitions. [2024-11-27 23:29:47,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:29:47,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2024-11-27 23:29:47,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:47,084 INFO L225 Difference]: With dead ends: 131 [2024-11-27 23:29:47,084 INFO L226 Difference]: Without dead ends: 83 [2024-11-27 23:29:47,084 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:29:47,085 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 15 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:47,085 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 90 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:29:47,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-27 23:29:47,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 81. [2024-11-27 23:29:47,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 46 states have (on average 1.7173913043478262) internal successors, (79), 69 states have internal predecessors, (79), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-27 23:29:47,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 99 transitions. [2024-11-27 23:29:47,098 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 99 transitions. Word has length 13 [2024-11-27 23:29:47,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:47,100 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 99 transitions. [2024-11-27 23:29:47,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 23:29:47,100 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 99 transitions. [2024-11-27 23:29:47,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-27 23:29:47,101 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:47,101 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:47,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-27 23:29:47,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:47,302 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:29:47,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:47,302 INFO L85 PathProgramCache]: Analyzing trace with hash -919006834, now seen corresponding path program 1 times [2024-11-27 23:29:47,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:47,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101700306] [2024-11-27 23:29:47,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:47,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:47,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:29:47,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [374500350] [2024-11-27 23:29:47,327 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:47,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:47,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:47,329 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:47,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 23:29:47,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:47,389 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 23:29:47,391 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:47,434 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 23:29:47,434 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:29:47,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:47,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101700306] [2024-11-27 23:29:47,434 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:29:47,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [374500350] [2024-11-27 23:29:47,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [374500350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:47,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:29:47,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:29:47,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133979562] [2024-11-27 23:29:47,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:47,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:29:47,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:47,435 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:29:47,435 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:29:47,436 INFO L87 Difference]: Start difference. First operand 81 states and 99 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 23:29:47,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:47,542 INFO L93 Difference]: Finished difference Result 115 states and 142 transitions. [2024-11-27 23:29:47,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:29:47,542 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 21 [2024-11-27 23:29:47,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:47,544 INFO L225 Difference]: With dead ends: 115 [2024-11-27 23:29:47,544 INFO L226 Difference]: Without dead ends: 111 [2024-11-27 23:29:47,544 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:29:47,545 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 39 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:47,545 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 84 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:29:47,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-27 23:29:47,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 97. [2024-11-27 23:29:47,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 60 states have (on average 1.6833333333333333) internal successors, (101), 83 states have internal predecessors, (101), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-27 23:29:47,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 125 transitions. [2024-11-27 23:29:47,570 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 125 transitions. Word has length 21 [2024-11-27 23:29:47,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:47,570 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 125 transitions. [2024-11-27 23:29:47,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 23:29:47,570 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 125 transitions. [2024-11-27 23:29:47,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-27 23:29:47,571 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:47,571 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:47,583 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 23:29:47,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-27 23:29:47,774 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:29:47,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:47,775 INFO L85 PathProgramCache]: Analyzing trace with hash -919006790, now seen corresponding path program 1 times [2024-11-27 23:29:47,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:47,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848327484] [2024-11-27 23:29:47,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:47,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:47,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:48,002 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 23:29:48,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:48,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848327484] [2024-11-27 23:29:48,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848327484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:48,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:29:48,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:29:48,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242832874] [2024-11-27 23:29:48,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:48,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:29:48,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:48,004 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:29:48,004 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:29:48,004 INFO L87 Difference]: Start difference. First operand 97 states and 125 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 23:29:48,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:48,107 INFO L93 Difference]: Finished difference Result 105 states and 130 transitions. [2024-11-27 23:29:48,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:29:48,108 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 21 [2024-11-27 23:29:48,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:48,109 INFO L225 Difference]: With dead ends: 105 [2024-11-27 23:29:48,110 INFO L226 Difference]: Without dead ends: 103 [2024-11-27 23:29:48,110 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 [2024-11-27 23:29:48,111 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 14 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:48,111 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 103 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:29:48,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-11-27 23:29:48,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 97. [2024-11-27 23:29:48,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 60 states have (on average 1.65) internal successors, (99), 83 states have internal predecessors, (99), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-27 23:29:48,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 123 transitions. [2024-11-27 23:29:48,123 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 123 transitions. Word has length 21 [2024-11-27 23:29:48,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:48,123 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 123 transitions. [2024-11-27 23:29:48,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 23:29:48,123 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 123 transitions. [2024-11-27 23:29:48,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-27 23:29:48,124 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:48,124 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:48,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 23:29:48,125 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:29:48,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:48,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1597697872, now seen corresponding path program 1 times [2024-11-27 23:29:48,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:48,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059791330] [2024-11-27 23:29:48,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:48,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:48,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:29:48,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2094204715] [2024-11-27 23:29:48,142 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:48,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:48,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:48,144 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:48,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 23:29:48,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:48,193 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 23:29:48,195 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:48,315 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 23:29:48,316 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:29:48,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:48,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059791330] [2024-11-27 23:29:48,316 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:29:48,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094204715] [2024-11-27 23:29:48,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2094204715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:48,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:29:48,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:29:48,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478921891] [2024-11-27 23:29:48,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:48,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:29:48,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:48,318 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:29:48,318 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:29:48,318 INFO L87 Difference]: Start difference. First operand 97 states and 123 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 23:29:48,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:48,410 INFO L93 Difference]: Finished difference Result 109 states and 130 transitions. [2024-11-27 23:29:48,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:29:48,414 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2024-11-27 23:29:48,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:48,415 INFO L225 Difference]: With dead ends: 109 [2024-11-27 23:29:48,415 INFO L226 Difference]: Without dead ends: 107 [2024-11-27 23:29:48,415 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:29:48,416 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 33 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:48,416 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 76 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:29:48,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-27 23:29:48,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 98. [2024-11-27 23:29:48,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 61 states have (on average 1.6065573770491803) internal successors, (98), 84 states have internal predecessors, (98), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-27 23:29:48,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 122 transitions. [2024-11-27 23:29:48,436 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 122 transitions. Word has length 23 [2024-11-27 23:29:48,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:48,438 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 122 transitions. [2024-11-27 23:29:48,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 23:29:48,438 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 122 transitions. [2024-11-27 23:29:48,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-27 23:29:48,439 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:48,439 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:48,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-27 23:29:48,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:48,640 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:29:48,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:48,640 INFO L85 PathProgramCache]: Analyzing trace with hash -2010973442, now seen corresponding path program 1 times [2024-11-27 23:29:48,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:48,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134372493] [2024-11-27 23:29:48,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:48,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:48,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:48,753 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 23:29:48,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:48,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134372493] [2024-11-27 23:29:48,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134372493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:48,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:29:48,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:29:48,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918317326] [2024-11-27 23:29:48,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:48,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:29:48,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:48,755 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:29:48,755 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:29:48,755 INFO L87 Difference]: Start difference. First operand 98 states and 122 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 23:29:49,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:49,068 INFO L93 Difference]: Finished difference Result 108 states and 134 transitions. [2024-11-27 23:29:49,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:29:49,069 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2024-11-27 23:29:49,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:49,070 INFO L225 Difference]: With dead ends: 108 [2024-11-27 23:29:49,070 INFO L226 Difference]: Without dead ends: 107 [2024-11-27 23:29:49,071 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 [2024-11-27 23:29:49,071 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 69 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:49,072 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 111 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 23:29:49,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-27 23:29:49,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 102. [2024-11-27 23:29:49,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 65 states have (on average 1.5846153846153845) internal successors, (103), 88 states have internal predecessors, (103), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-27 23:29:49,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 127 transitions. [2024-11-27 23:29:49,097 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 127 transitions. Word has length 24 [2024-11-27 23:29:49,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:49,098 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 127 transitions. [2024-11-27 23:29:49,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 23:29:49,098 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 127 transitions. [2024-11-27 23:29:49,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-27 23:29:49,102 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:49,102 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:49,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 23:29:49,102 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:29:49,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:49,103 INFO L85 PathProgramCache]: Analyzing trace with hash -153206488, now seen corresponding path program 1 times [2024-11-27 23:29:49,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:49,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919129532] [2024-11-27 23:29:49,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:49,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:49,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:29:49,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [645102807] [2024-11-27 23:29:49,136 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:49,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:49,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:49,141 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:49,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 23:29:49,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:49,200 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 23:29:49,201 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:49,350 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-27 23:29:49,350 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:29:49,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:49,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919129532] [2024-11-27 23:29:49,351 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:29:49,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645102807] [2024-11-27 23:29:49,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [645102807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:49,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:29:49,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:29:49,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443370453] [2024-11-27 23:29:49,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:49,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:29:49,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:49,352 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:29:49,352 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:29:49,352 INFO L87 Difference]: Start difference. First operand 102 states and 127 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2024-11-27 23:29:49,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:49,469 INFO L93 Difference]: Finished difference Result 116 states and 145 transitions. [2024-11-27 23:29:49,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:29:49,474 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 35 [2024-11-27 23:29:49,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:49,475 INFO L225 Difference]: With dead ends: 116 [2024-11-27 23:29:49,475 INFO L226 Difference]: Without dead ends: 107 [2024-11-27 23:29:49,475 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:29:49,476 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 45 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:49,476 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 83 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:29:49,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-27 23:29:49,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2024-11-27 23:29:49,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 72 states have (on average 1.4583333333333333) internal successors, (105), 91 states have internal predecessors, (105), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-27 23:29:49,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 133 transitions. [2024-11-27 23:29:49,507 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 133 transitions. Word has length 35 [2024-11-27 23:29:49,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:49,507 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 133 transitions. [2024-11-27 23:29:49,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2024-11-27 23:29:49,508 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 133 transitions. [2024-11-27 23:29:49,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-27 23:29:49,508 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:49,508 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:49,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-27 23:29:49,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:49,709 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:29:49,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:49,710 INFO L85 PathProgramCache]: Analyzing trace with hash -454433786, now seen corresponding path program 1 times [2024-11-27 23:29:49,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:49,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999956371] [2024-11-27 23:29:49,710 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:49,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:49,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:29:49,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1608918710] [2024-11-27 23:29:49,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:49,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:49,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:49,747 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:49,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 23:29:49,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:49,813 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 23:29:49,814 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:49,917 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-27 23:29:49,917 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:29:50,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:50,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999956371] [2024-11-27 23:29:50,244 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:29:50,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1608918710] [2024-11-27 23:29:50,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1608918710] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:29:50,245 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:29:50,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2024-11-27 23:29:50,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829266207] [2024-11-27 23:29:50,245 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:29:50,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:29:50,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:50,246 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:29:50,246 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:29:50,247 INFO L87 Difference]: Start difference. First operand 107 states and 133 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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) [2024-11-27 23:29:50,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:50,403 INFO L93 Difference]: Finished difference Result 178 states and 233 transitions. [2024-11-27 23:29:50,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:29:50,403 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 36 [2024-11-27 23:29:50,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:50,405 INFO L225 Difference]: With dead ends: 178 [2024-11-27 23:29:50,405 INFO L226 Difference]: Without dead ends: 174 [2024-11-27 23:29:50,406 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:29:50,406 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 56 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:50,407 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 93 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:29:50,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-11-27 23:29:50,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 162. [2024-11-27 23:29:50,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 118 states have (on average 1.4661016949152543) internal successors, (173), 137 states have internal predecessors, (173), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 23:29:50,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 219 transitions. [2024-11-27 23:29:50,427 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 219 transitions. Word has length 36 [2024-11-27 23:29:50,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:50,427 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 219 transitions. [2024-11-27 23:29:50,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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) [2024-11-27 23:29:50,428 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 219 transitions. [2024-11-27 23:29:50,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-27 23:29:50,429 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:50,429 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:50,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-27 23:29:50,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:50,633 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:29:50,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:50,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1642285627, now seen corresponding path program 1 times [2024-11-27 23:29:50,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:50,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757020779] [2024-11-27 23:29:50,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:50,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:50,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:50,759 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-27 23:29:50,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:50,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757020779] [2024-11-27 23:29:50,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757020779] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:50,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:29:50,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:29:50,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445018499] [2024-11-27 23:29:50,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:50,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:29:50,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:50,761 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:29:50,761 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:29:50,761 INFO L87 Difference]: Start difference. First operand 162 states and 219 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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) [2024-11-27 23:29:50,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:50,878 INFO L93 Difference]: Finished difference Result 167 states and 223 transitions. [2024-11-27 23:29:50,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:29:50,879 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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 41 [2024-11-27 23:29:50,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:50,880 INFO L225 Difference]: With dead ends: 167 [2024-11-27 23:29:50,880 INFO L226 Difference]: Without dead ends: 153 [2024-11-27 23:29:50,880 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:29:50,881 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 17 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:50,881 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 126 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:29:50,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-11-27 23:29:50,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2024-11-27 23:29:50,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 111 states have (on average 1.4864864864864864) internal successors, (165), 130 states have internal predecessors, (165), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-27 23:29:50,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 207 transitions. [2024-11-27 23:29:50,920 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 207 transitions. Word has length 41 [2024-11-27 23:29:50,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:50,920 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 207 transitions. [2024-11-27 23:29:50,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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) [2024-11-27 23:29:50,921 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 207 transitions. [2024-11-27 23:29:50,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-27 23:29:50,922 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:50,922 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:50,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 23:29:50,922 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:29:50,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:50,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1217911612, now seen corresponding path program 1 times [2024-11-27 23:29:50,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:50,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392539167] [2024-11-27 23:29:50,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:50,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:50,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:51,028 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 23:29:51,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:51,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392539167] [2024-11-27 23:29:51,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392539167] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:29:51,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391994703] [2024-11-27 23:29:51,029 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:51,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:51,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:51,032 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:51,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 23:29:51,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:51,084 INFO L256 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 23:29:51,086 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:51,134 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 23:29:51,134 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:29:51,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1391994703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:51,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:29:51,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-27 23:29:51,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541958365] [2024-11-27 23:29:51,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:51,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:29:51,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:51,137 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:29:51,137 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:29:51,137 INFO L87 Difference]: Start difference. First operand 153 states and 207 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (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) [2024-11-27 23:29:51,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:51,250 INFO L93 Difference]: Finished difference Result 232 states and 324 transitions. [2024-11-27 23:29:51,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:29:51,251 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (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 43 [2024-11-27 23:29:51,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:51,253 INFO L225 Difference]: With dead ends: 232 [2024-11-27 23:29:51,254 INFO L226 Difference]: Without dead ends: 230 [2024-11-27 23:29:51,255 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:29:51,256 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 41 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:51,257 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 118 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:29:51,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-11-27 23:29:51,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 210. [2024-11-27 23:29:51,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 161 states have (on average 1.4906832298136645) internal successors, (240), 179 states have internal predecessors, (240), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-27 23:29:51,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 298 transitions. [2024-11-27 23:29:51,286 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 298 transitions. Word has length 43 [2024-11-27 23:29:51,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:51,287 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 298 transitions. [2024-11-27 23:29:51,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (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) [2024-11-27 23:29:51,287 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 298 transitions. [2024-11-27 23:29:51,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-27 23:29:51,290 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:51,291 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:51,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-27 23:29:51,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-27 23:29:51,491 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:29:51,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:51,492 INFO L85 PathProgramCache]: Analyzing trace with hash -899445636, now seen corresponding path program 1 times [2024-11-27 23:29:51,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:51,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695590002] [2024-11-27 23:29:51,492 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:51,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:51,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:51,563 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 23:29:51,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:51,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695590002] [2024-11-27 23:29:51,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695590002] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:29:51,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1333909442] [2024-11-27 23:29:51,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:51,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:51,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:51,566 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:51,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 23:29:51,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:51,616 INFO L256 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 23:29:51,619 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:51,671 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 23:29:51,671 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:29:51,752 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 23:29:51,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1333909442] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:29:51,752 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:29:51,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-27 23:29:51,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16002279] [2024-11-27 23:29:51,752 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:29:51,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:29:51,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:51,755 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:29:51,756 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:29:51,756 INFO L87 Difference]: Start difference. First operand 210 states and 298 transitions. Second operand has 7 states, 6 states have (on average 6.0) internal successors, (36), 7 states have internal predecessors, (36), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-27 23:29:51,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:51,990 INFO L93 Difference]: Finished difference Result 347 states and 487 transitions. [2024-11-27 23:29:51,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:29:51,991 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 7 states have internal predecessors, (36), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 44 [2024-11-27 23:29:51,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:51,995 INFO L225 Difference]: With dead ends: 347 [2024-11-27 23:29:51,995 INFO L226 Difference]: Without dead ends: 345 [2024-11-27 23:29:51,995 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:29:51,996 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 97 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:51,997 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 225 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:29:51,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-11-27 23:29:52,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 302. [2024-11-27 23:29:52,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 237 states have (on average 1.489451476793249) internal successors, (353), 255 states have internal predecessors, (353), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-27 23:29:52,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 443 transitions. [2024-11-27 23:29:52,051 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 443 transitions. Word has length 44 [2024-11-27 23:29:52,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:52,051 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 443 transitions. [2024-11-27 23:29:52,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 7 states have internal predecessors, (36), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-27 23:29:52,051 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 443 transitions. [2024-11-27 23:29:52,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-27 23:29:52,052 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:52,052 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-27 23:29:52,064 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-27 23:29:52,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:52,253 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:29:52,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:52,253 INFO L85 PathProgramCache]: Analyzing trace with hash 286434884, now seen corresponding path program 2 times [2024-11-27 23:29:52,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:52,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279822870] [2024-11-27 23:29:52,254 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:29:52,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:52,277 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:29:52,277 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 23:29:52,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1248035501] [2024-11-27 23:29:52,278 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:29:52,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:52,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:52,283 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:52,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 23:29:52,337 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:29:52,338 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:29:52,339 INFO L256 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 23:29:52,341 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:52,485 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 23:29:52,485 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:29:52,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:52,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279822870] [2024-11-27 23:29:52,729 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:29:52,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1248035501] [2024-11-27 23:29:52,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1248035501] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:29:52,729 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:29:52,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-27 23:29:52,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32484358] [2024-11-27 23:29:52,729 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:29:52,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:29:52,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:52,730 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:29:52,730 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:29:52,730 INFO L87 Difference]: Start difference. First operand 302 states and 443 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-27 23:29:52,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:52,974 INFO L93 Difference]: Finished difference Result 391 states and 571 transitions. [2024-11-27 23:29:52,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:29:52,975 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 58 [2024-11-27 23:29:52,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:52,979 INFO L225 Difference]: With dead ends: 391 [2024-11-27 23:29:52,979 INFO L226 Difference]: Without dead ends: 387 [2024-11-27 23:29:52,980 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:29:52,981 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 63 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:52,981 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 130 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:29:52,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2024-11-27 23:29:53,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 302. [2024-11-27 23:29:53,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 237 states have (on average 1.481012658227848) internal successors, (351), 255 states have internal predecessors, (351), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-27 23:29:53,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 441 transitions. [2024-11-27 23:29:53,014 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 441 transitions. Word has length 58 [2024-11-27 23:29:53,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:53,014 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 441 transitions. [2024-11-27 23:29:53,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-27 23:29:53,015 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 441 transitions. [2024-11-27 23:29:53,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-27 23:29:53,015 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:53,016 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2024-11-27 23:29:53,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-27 23:29:53,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-27 23:29:53,216 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:29:53,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:53,217 INFO L85 PathProgramCache]: Analyzing trace with hash -682436543, now seen corresponding path program 1 times [2024-11-27 23:29:53,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:53,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122218721] [2024-11-27 23:29:53,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:53,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:53,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:53,338 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-27 23:29:53,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:53,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122218721] [2024-11-27 23:29:53,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122218721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:53,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:29:53,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:29:53,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562136597] [2024-11-27 23:29:53,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:53,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:29:53,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:53,339 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:29:53,339 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:29:53,339 INFO L87 Difference]: Start difference. First operand 302 states and 441 transitions. Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 23:29:53,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:53,407 INFO L93 Difference]: Finished difference Result 302 states and 441 transitions. [2024-11-27 23:29:53,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:29:53,408 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 65 [2024-11-27 23:29:53,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:53,410 INFO L225 Difference]: With dead ends: 302 [2024-11-27 23:29:53,410 INFO L226 Difference]: Without dead ends: 301 [2024-11-27 23:29:53,410 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 [2024-11-27 23:29:53,411 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 2 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:53,412 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 92 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:29:53,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2024-11-27 23:29:53,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 301. [2024-11-27 23:29:53,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 237 states have (on average 1.4556962025316456) internal successors, (345), 254 states have internal predecessors, (345), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-27 23:29:53,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 435 transitions. [2024-11-27 23:29:53,447 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 435 transitions. Word has length 65 [2024-11-27 23:29:53,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:53,448 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 435 transitions. [2024-11-27 23:29:53,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 23:29:53,448 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 435 transitions. [2024-11-27 23:29:53,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-27 23:29:53,449 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:53,449 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2024-11-27 23:29:53,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-27 23:29:53,450 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:29:53,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:53,450 INFO L85 PathProgramCache]: Analyzing trace with hash 319303751, now seen corresponding path program 1 times [2024-11-27 23:29:53,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:53,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346571486] [2024-11-27 23:29:53,451 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:53,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:53,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:53,763 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 23:29:53,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:53,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346571486] [2024-11-27 23:29:53,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346571486] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:29:53,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [654851715] [2024-11-27 23:29:53,763 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:53,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:53,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:53,766 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:53,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-27 23:29:53,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:53,831 INFO L256 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 23:29:53,834 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:54,088 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 23:29:54,088 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:29:54,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [654851715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:54,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:29:54,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-27 23:29:54,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722271618] [2024-11-27 23:29:54,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:54,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:29:54,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:54,090 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:29:54,090 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:29:54,091 INFO L87 Difference]: Start difference. First operand 301 states and 435 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-27 23:29:54,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:54,257 INFO L93 Difference]: Finished difference Result 322 states and 453 transitions. [2024-11-27 23:29:54,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:29:54,257 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 66 [2024-11-27 23:29:54,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:54,260 INFO L225 Difference]: With dead ends: 322 [2024-11-27 23:29:54,260 INFO L226 Difference]: Without dead ends: 321 [2024-11-27 23:29:54,261 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:29:54,261 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 29 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:54,262 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 95 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:29:54,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2024-11-27 23:29:54,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 301. [2024-11-27 23:29:54,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 237 states have (on average 1.4430379746835442) internal successors, (342), 254 states have internal predecessors, (342), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-27 23:29:54,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 432 transitions. [2024-11-27 23:29:54,309 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 432 transitions. Word has length 66 [2024-11-27 23:29:54,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:54,309 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 432 transitions. [2024-11-27 23:29:54,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-27 23:29:54,310 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 432 transitions. [2024-11-27 23:29:54,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-27 23:29:54,312 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:54,312 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2024-11-27 23:29:54,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-27 23:29:54,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-27 23:29:54,517 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:29:54,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:54,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1308481795, now seen corresponding path program 1 times [2024-11-27 23:29:54,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:54,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617334406] [2024-11-27 23:29:54,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:54,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:54,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:54,811 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 23:29:54,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:54,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617334406] [2024-11-27 23:29:54,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617334406] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:29:54,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2118574116] [2024-11-27 23:29:54,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:54,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:54,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:54,818 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:54,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-27 23:29:54,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:54,882 INFO L256 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 23:29:54,885 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:55,223 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-27 23:29:55,223 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:29:55,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2118574116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:55,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:29:55,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-27 23:29:55,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276411353] [2024-11-27 23:29:55,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:55,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:29:55,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:55,224 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:29:55,225 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:29:55,225 INFO L87 Difference]: Start difference. First operand 301 states and 432 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 23:29:55,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:55,426 INFO L93 Difference]: Finished difference Result 321 states and 454 transitions. [2024-11-27 23:29:55,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:29:55,427 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 67 [2024-11-27 23:29:55,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:55,429 INFO L225 Difference]: With dead ends: 321 [2024-11-27 23:29:55,429 INFO L226 Difference]: Without dead ends: 320 [2024-11-27 23:29:55,431 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 64 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:29:55,431 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 52 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:55,432 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 82 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:29:55,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2024-11-27 23:29:55,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 310. [2024-11-27 23:29:55,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 246 states have (on average 1.4268292682926829) internal successors, (351), 263 states have internal predecessors, (351), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-27 23:29:55,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 441 transitions. [2024-11-27 23:29:55,483 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 441 transitions. Word has length 67 [2024-11-27 23:29:55,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:55,483 INFO L471 AbstractCegarLoop]: Abstraction has 310 states and 441 transitions. [2024-11-27 23:29:55,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 23:29:55,484 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 441 transitions. [2024-11-27 23:29:55,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-27 23:29:55,485 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:55,485 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2024-11-27 23:29:55,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-27 23:29:55,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-27 23:29:55,686 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:29:55,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:55,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1908230089, now seen corresponding path program 1 times [2024-11-27 23:29:55,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:55,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052972213] [2024-11-27 23:29:55,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:55,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:55,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:55,911 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 23:29:55,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:55,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052972213] [2024-11-27 23:29:55,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052972213] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:29:55,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103409043] [2024-11-27 23:29:55,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:55,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:55,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:55,916 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:55,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-27 23:29:55,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:55,971 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 23:29:55,973 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:56,147 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-27 23:29:56,147 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:29:56,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [103409043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:56,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:29:56,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-27 23:29:56,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262580565] [2024-11-27 23:29:56,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:56,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:29:56,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:56,148 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:29:56,148 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:29:56,148 INFO L87 Difference]: Start difference. First operand 310 states and 441 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 23:29:56,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:56,280 INFO L93 Difference]: Finished difference Result 320 states and 448 transitions. [2024-11-27 23:29:56,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:29:56,281 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 68 [2024-11-27 23:29:56,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:56,283 INFO L225 Difference]: With dead ends: 320 [2024-11-27 23:29:56,283 INFO L226 Difference]: Without dead ends: 318 [2024-11-27 23:29:56,284 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:29:56,285 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 34 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:56,286 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 73 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:29:56,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2024-11-27 23:29:56,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 313. [2024-11-27 23:29:56,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 249 states have (on average 1.393574297188755) internal successors, (347), 266 states have internal predecessors, (347), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-27 23:29:56,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 437 transitions. [2024-11-27 23:29:56,326 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 437 transitions. Word has length 68 [2024-11-27 23:29:56,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:56,326 INFO L471 AbstractCegarLoop]: Abstraction has 313 states and 437 transitions. [2024-11-27 23:29:56,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 23:29:56,326 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 437 transitions. [2024-11-27 23:29:56,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-27 23:29:56,329 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:56,329 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2024-11-27 23:29:56,340 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-27 23:29:56,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-27 23:29:56,530 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:29:56,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:56,530 INFO L85 PathProgramCache]: Analyzing trace with hash -974409313, now seen corresponding path program 1 times [2024-11-27 23:29:56,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:56,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105034204] [2024-11-27 23:29:56,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:56,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:56,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:29:56,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [306636940] [2024-11-27 23:29:56,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:56,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:56,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:56,575 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:56,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-27 23:29:56,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:56,637 INFO L256 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 23:29:56,638 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:57,057 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-27 23:29:57,057 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:29:57,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:57,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105034204] [2024-11-27 23:29:57,951 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:29:57,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [306636940] [2024-11-27 23:29:57,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [306636940] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:29:57,951 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:29:57,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-27 23:29:57,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186089905] [2024-11-27 23:29:57,952 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:29:57,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:29:57,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:57,953 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:29:57,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:29:57,954 INFO L87 Difference]: Start difference. First operand 313 states and 437 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 23:29:58,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:58,160 INFO L93 Difference]: Finished difference Result 392 states and 561 transitions. [2024-11-27 23:29:58,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:29:58,161 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 69 [2024-11-27 23:29:58,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:58,164 INFO L225 Difference]: With dead ends: 392 [2024-11-27 23:29:58,164 INFO L226 Difference]: Without dead ends: 391 [2024-11-27 23:29:58,166 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:29:58,167 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 56 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:58,167 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 80 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:29:58,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2024-11-27 23:29:58,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 367. [2024-11-27 23:29:58,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 297 states have (on average 1.4175084175084176) internal successors, (421), 314 states have internal predecessors, (421), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-27 23:29:58,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 523 transitions. [2024-11-27 23:29:58,217 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 523 transitions. Word has length 69 [2024-11-27 23:29:58,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:58,217 INFO L471 AbstractCegarLoop]: Abstraction has 367 states and 523 transitions. [2024-11-27 23:29:58,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 23:29:58,218 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 523 transitions. [2024-11-27 23:29:58,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-27 23:29:58,219 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:58,219 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2024-11-27 23:29:58,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-27 23:29:58,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-27 23:29:58,420 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:29:58,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:58,420 INFO L85 PathProgramCache]: Analyzing trace with hash -141917557, now seen corresponding path program 1 times [2024-11-27 23:29:58,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:58,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364442847] [2024-11-27 23:29:58,421 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:58,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:58,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:29:58,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1007632785] [2024-11-27 23:29:58,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:58,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:58,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:58,446 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:58,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-27 23:29:58,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:58,511 INFO L256 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 23:29:58,513 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:58,779 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-27 23:29:58,779 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:29:59,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:59,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364442847] [2024-11-27 23:29:59,493 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:29:59,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007632785] [2024-11-27 23:29:59,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007632785] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:29:59,493 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:29:59,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-27 23:29:59,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10715038] [2024-11-27 23:29:59,494 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:29:59,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:29:59,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:59,495 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:29:59,495 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:29:59,495 INFO L87 Difference]: Start difference. First operand 367 states and 523 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 23:29:59,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:59,611 INFO L93 Difference]: Finished difference Result 372 states and 524 transitions. [2024-11-27 23:29:59,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:29:59,612 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 70 [2024-11-27 23:29:59,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:59,614 INFO L225 Difference]: With dead ends: 372 [2024-11-27 23:29:59,614 INFO L226 Difference]: Without dead ends: 369 [2024-11-27 23:29:59,614 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:29:59,615 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 65 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:59,615 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 53 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:29:59,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2024-11-27 23:29:59,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 365. [2024-11-27 23:29:59,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 297 states have (on average 1.34006734006734) internal successors, (398), 312 states have internal predecessors, (398), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-27 23:29:59,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 500 transitions. [2024-11-27 23:29:59,652 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 500 transitions. Word has length 70 [2024-11-27 23:29:59,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:59,652 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 500 transitions. [2024-11-27 23:29:59,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 23:29:59,653 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 500 transitions. [2024-11-27 23:29:59,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-27 23:29:59,654 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:59,654 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2024-11-27 23:29:59,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-27 23:29:59,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-27 23:29:59,855 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:29:59,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:59,855 INFO L85 PathProgramCache]: Analyzing trace with hash -104476895, now seen corresponding path program 1 times [2024-11-27 23:29:59,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:59,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428624543] [2024-11-27 23:29:59,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:59,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:59,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:59,953 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-27 23:29:59,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:59,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428624543] [2024-11-27 23:29:59,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428624543] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:59,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:29:59,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:29:59,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317239936] [2024-11-27 23:29:59,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:59,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:29:59,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:59,955 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:29:59,955 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:29:59,955 INFO L87 Difference]: Start difference. First operand 365 states and 500 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 23:30:00,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:00,164 INFO L93 Difference]: Finished difference Result 368 states and 501 transitions. [2024-11-27 23:30:00,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:30:00,164 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 71 [2024-11-27 23:30:00,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:00,166 INFO L225 Difference]: With dead ends: 368 [2024-11-27 23:30:00,167 INFO L226 Difference]: Without dead ends: 367 [2024-11-27 23:30:00,167 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:30:00,167 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 63 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:00,168 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 104 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:30:00,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2024-11-27 23:30:00,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 364. [2024-11-27 23:30:00,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 297 states have (on average 1.2895622895622896) internal successors, (383), 311 states have internal predecessors, (383), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-27 23:30:00,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 485 transitions. [2024-11-27 23:30:00,203 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 485 transitions. Word has length 71 [2024-11-27 23:30:00,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:00,203 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 485 transitions. [2024-11-27 23:30:00,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 23:30:00,204 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 485 transitions. [2024-11-27 23:30:00,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-27 23:30:00,204 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:00,205 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2024-11-27 23:30:00,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-27 23:30:00,205 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:30:00,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:00,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1056183629, now seen corresponding path program 1 times [2024-11-27 23:30:00,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:00,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022826371] [2024-11-27 23:30:00,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:00,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:00,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:00,398 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 23:30:00,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:00,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022826371] [2024-11-27 23:30:00,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022826371] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:30:00,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [996281465] [2024-11-27 23:30:00,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:00,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:00,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:00,401 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:00,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-27 23:30:00,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:00,458 INFO L256 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-27 23:30:00,459 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:00,925 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 23:30:00,925 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:30:01,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [996281465] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:30:01,924 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:30:01,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-11-27 23:30:01,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935704501] [2024-11-27 23:30:01,924 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:30:01,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 23:30:01,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:01,926 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 23:30:01,926 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2024-11-27 23:30:01,926 INFO L87 Difference]: Start difference. First operand 364 states and 485 transitions. Second operand has 16 states, 15 states have (on average 4.4) internal successors, (66), 16 states have internal predecessors, (66), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-11-27 23:30:03,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:03,729 INFO L93 Difference]: Finished difference Result 653 states and 886 transitions. [2024-11-27 23:30:03,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-27 23:30:03,730 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.4) internal successors, (66), 16 states have internal predecessors, (66), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 72 [2024-11-27 23:30:03,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:03,734 INFO L225 Difference]: With dead ends: 653 [2024-11-27 23:30:03,734 INFO L226 Difference]: Without dead ends: 644 [2024-11-27 23:30:03,737 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=353, Invalid=1287, Unknown=0, NotChecked=0, Total=1640 [2024-11-27 23:30:03,738 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 393 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 826 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:03,739 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 242 Invalid, 901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 826 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 23:30:03,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2024-11-27 23:30:03,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 491. [2024-11-27 23:30:03,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 408 states have (on average 1.2769607843137254) internal successors, (521), 422 states have internal predecessors, (521), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-27 23:30:03,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 655 transitions. [2024-11-27 23:30:03,837 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 655 transitions. Word has length 72 [2024-11-27 23:30:03,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:03,837 INFO L471 AbstractCegarLoop]: Abstraction has 491 states and 655 transitions. [2024-11-27 23:30:03,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.4) internal successors, (66), 16 states have internal predecessors, (66), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-11-27 23:30:03,838 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 655 transitions. [2024-11-27 23:30:03,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-27 23:30:03,839 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:03,839 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2024-11-27 23:30:03,850 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-27 23:30:04,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:04,043 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:30:04,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:04,044 INFO L85 PathProgramCache]: Analyzing trace with hash -359764, now seen corresponding path program 1 times [2024-11-27 23:30:04,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:04,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557162211] [2024-11-27 23:30:04,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:04,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:04,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:30:04,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1882902217] [2024-11-27 23:30:04,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:04,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:04,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:04,079 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:04,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-27 23:30:04,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:04,139 INFO L256 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-27 23:30:04,141 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:04,572 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 3 proven. 39 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-11-27 23:30:04,572 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:30:05,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:05,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557162211] [2024-11-27 23:30:05,222 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:30:05,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1882902217] [2024-11-27 23:30:05,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1882902217] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:30:05,223 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:30:05,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-27 23:30:05,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162440712] [2024-11-27 23:30:05,223 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:30:05,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 23:30:05,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:05,224 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 23:30:05,224 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2024-11-27 23:30:05,224 INFO L87 Difference]: Start difference. First operand 491 states and 655 transitions. Second operand has 11 states, 9 states have (on average 4.666666666666667) internal successors, (42), 11 states have internal predecessors, (42), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-27 23:30:05,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:05,781 INFO L93 Difference]: Finished difference Result 514 states and 670 transitions. [2024-11-27 23:30:05,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 23:30:05,781 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 4.666666666666667) internal successors, (42), 11 states have internal predecessors, (42), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 86 [2024-11-27 23:30:05,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:05,785 INFO L225 Difference]: With dead ends: 514 [2024-11-27 23:30:05,785 INFO L226 Difference]: Without dead ends: 396 [2024-11-27 23:30:05,787 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-27 23:30:05,788 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 16 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:05,788 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 160 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 23:30:05,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2024-11-27 23:30:05,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 394. [2024-11-27 23:30:05,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 323 states have (on average 1.2662538699690402) internal successors, (409), 337 states have internal predecessors, (409), 55 states have call successors, (55), 1 states have call predecessors, (55), 1 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-27 23:30:05,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 519 transitions. [2024-11-27 23:30:05,843 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 519 transitions. Word has length 86 [2024-11-27 23:30:05,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:05,843 INFO L471 AbstractCegarLoop]: Abstraction has 394 states and 519 transitions. [2024-11-27 23:30:05,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 4.666666666666667) internal successors, (42), 11 states have internal predecessors, (42), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-27 23:30:05,843 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 519 transitions. [2024-11-27 23:30:05,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-27 23:30:05,846 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:05,846 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2024-11-27 23:30:05,857 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-27 23:30:06,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-27 23:30:06,050 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:30:06,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:06,051 INFO L85 PathProgramCache]: Analyzing trace with hash -345729426, now seen corresponding path program 1 times [2024-11-27 23:30:06,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:06,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524775809] [2024-11-27 23:30:06,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:06,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:06,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:06,165 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-11-27 23:30:06,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:06,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524775809] [2024-11-27 23:30:06,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524775809] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:06,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:30:06,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:30:06,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001852445] [2024-11-27 23:30:06,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:06,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:30:06,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:06,167 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:30:06,167 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:30:06,167 INFO L87 Difference]: Start difference. First operand 394 states and 519 transitions. Second operand has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:30:06,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:06,399 INFO L93 Difference]: Finished difference Result 397 states and 520 transitions. [2024-11-27 23:30:06,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:30:06,399 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 88 [2024-11-27 23:30:06,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:06,401 INFO L225 Difference]: With dead ends: 397 [2024-11-27 23:30:06,402 INFO L226 Difference]: Without dead ends: 366 [2024-11-27 23:30:06,402 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:30:06,404 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 27 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:06,404 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 167 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:30:06,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2024-11-27 23:30:06,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 362. [2024-11-27 23:30:06,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 296 states have (on average 1.2837837837837838) internal successors, (380), 309 states have internal predecessors, (380), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-27 23:30:06,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 482 transitions. [2024-11-27 23:30:06,442 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 482 transitions. Word has length 88 [2024-11-27 23:30:06,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:06,442 INFO L471 AbstractCegarLoop]: Abstraction has 362 states and 482 transitions. [2024-11-27 23:30:06,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:30:06,443 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 482 transitions. [2024-11-27 23:30:06,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-27 23:30:06,444 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:06,444 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1] [2024-11-27 23:30:06,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-27 23:30:06,444 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:30:06,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:06,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1147913286, now seen corresponding path program 1 times [2024-11-27 23:30:06,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:06,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513314682] [2024-11-27 23:30:06,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:06,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:06,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:06,558 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 23:30:06,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:06,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513314682] [2024-11-27 23:30:06,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513314682] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:30:06,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [274591535] [2024-11-27 23:30:06,558 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:06,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:06,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:06,561 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:06,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-27 23:30:06,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:06,623 INFO L256 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 23:30:06,625 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:06,711 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 23:30:06,711 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:30:06,893 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 23:30:06,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [274591535] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:30:06,894 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:30:06,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-27 23:30:06,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680521630] [2024-11-27 23:30:06,894 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:30:06,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 23:30:06,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:06,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 23:30:06,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:30:06,895 INFO L87 Difference]: Start difference. First operand 362 states and 482 transitions. Second operand has 11 states, 10 states have (on average 7.0) internal successors, (70), 11 states have internal predecessors, (70), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) [2024-11-27 23:30:07,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:07,393 INFO L93 Difference]: Finished difference Result 741 states and 984 transitions. [2024-11-27 23:30:07,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 23:30:07,393 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.0) internal successors, (70), 11 states have internal predecessors, (70), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) Word has length 90 [2024-11-27 23:30:07,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:07,398 INFO L225 Difference]: With dead ends: 741 [2024-11-27 23:30:07,398 INFO L226 Difference]: Without dead ends: 739 [2024-11-27 23:30:07,399 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:30:07,400 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 234 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:07,400 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 326 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 23:30:07,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2024-11-27 23:30:07,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 500. [2024-11-27 23:30:07,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 410 states have (on average 1.2878048780487805) internal successors, (528), 423 states have internal predecessors, (528), 75 states have call successors, (75), 1 states have call predecessors, (75), 1 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-27 23:30:07,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 678 transitions. [2024-11-27 23:30:07,492 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 678 transitions. Word has length 90 [2024-11-27 23:30:07,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:07,492 INFO L471 AbstractCegarLoop]: Abstraction has 500 states and 678 transitions. [2024-11-27 23:30:07,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.0) internal successors, (70), 11 states have internal predecessors, (70), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) [2024-11-27 23:30:07,493 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 678 transitions. [2024-11-27 23:30:07,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-27 23:30:07,494 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:07,495 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:07,507 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-27 23:30:07,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-27 23:30:07,696 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:30:07,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:07,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1745424523, now seen corresponding path program 2 times [2024-11-27 23:30:07,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:07,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963579132] [2024-11-27 23:30:07,697 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:30:07,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:07,735 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:30:07,735 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 23:30:07,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1407615049] [2024-11-27 23:30:07,738 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:30:07,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:07,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:07,740 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:07,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-27 23:30:07,804 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:30:07,804 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:30:07,806 INFO L256 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-27 23:30:07,809 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:08,472 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-27 23:30:08,473 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:30:14,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:14,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963579132] [2024-11-27 23:30:14,123 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:30:14,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1407615049] [2024-11-27 23:30:14,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1407615049] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:30:14,123 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:30:14,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-27 23:30:14,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691513606] [2024-11-27 23:30:14,125 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:30:14,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 23:30:14,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:14,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 23:30:14,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=219, Unknown=1, NotChecked=0, Total=272 [2024-11-27 23:30:14,127 INFO L87 Difference]: Start difference. First operand 500 states and 678 transitions. Second operand has 12 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 12 states have internal predecessors, (42), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-27 23:30:15,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:15,142 INFO L93 Difference]: Finished difference Result 523 states and 707 transitions. [2024-11-27 23:30:15,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 23:30:15,142 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 12 states have internal predecessors, (42), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 94 [2024-11-27 23:30:15,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:15,146 INFO L225 Difference]: With dead ends: 523 [2024-11-27 23:30:15,146 INFO L226 Difference]: Without dead ends: 522 [2024-11-27 23:30:15,146 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=62, Invalid=243, Unknown=1, NotChecked=0, Total=306 [2024-11-27 23:30:15,147 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 28 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 983 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:15,147 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 258 Invalid, 984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 983 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 23:30:15,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2024-11-27 23:30:15,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 500. [2024-11-27 23:30:15,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 410 states have (on average 1.2853658536585366) internal successors, (527), 423 states have internal predecessors, (527), 75 states have call successors, (75), 1 states have call predecessors, (75), 1 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-27 23:30:15,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 677 transitions. [2024-11-27 23:30:15,215 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 677 transitions. Word has length 94 [2024-11-27 23:30:15,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:15,216 INFO L471 AbstractCegarLoop]: Abstraction has 500 states and 677 transitions. [2024-11-27 23:30:15,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 12 states have internal predecessors, (42), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-27 23:30:15,216 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 677 transitions. [2024-11-27 23:30:15,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-27 23:30:15,218 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:15,218 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-27 23:30:15,231 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-27 23:30:15,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-27 23:30:15,419 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:30:15,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:15,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1385170936, now seen corresponding path program 1 times [2024-11-27 23:30:15,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:15,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337851097] [2024-11-27 23:30:15,420 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:15,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:15,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:15,620 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 6 proven. 25 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 23:30:15,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:15,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337851097] [2024-11-27 23:30:15,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337851097] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:30:15,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1723413302] [2024-11-27 23:30:15,622 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:15,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:15,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:15,624 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:15,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-27 23:30:15,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:15,695 INFO L256 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 23:30:15,697 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:15,934 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2024-11-27 23:30:15,934 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:30:15,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1723413302] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:15,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:30:15,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-27 23:30:15,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844154287] [2024-11-27 23:30:15,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:15,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:30:15,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:15,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:30:15,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:30:15,936 INFO L87 Difference]: Start difference. First operand 500 states and 677 transitions. Second operand has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 23:30:16,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:16,068 INFO L93 Difference]: Finished difference Result 505 states and 679 transitions. [2024-11-27 23:30:16,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:30:16,069 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 107 [2024-11-27 23:30:16,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:16,072 INFO L225 Difference]: With dead ends: 505 [2024-11-27 23:30:16,072 INFO L226 Difference]: Without dead ends: 500 [2024-11-27 23:30:16,072 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 108 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:30:16,073 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 7 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:16,073 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 66 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:30:16,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2024-11-27 23:30:16,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 498. [2024-11-27 23:30:16,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 408 states have (on average 1.267156862745098) internal successors, (517), 421 states have internal predecessors, (517), 75 states have call successors, (75), 1 states have call predecessors, (75), 1 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-27 23:30:16,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 667 transitions. [2024-11-27 23:30:16,132 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 667 transitions. Word has length 107 [2024-11-27 23:30:16,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:16,133 INFO L471 AbstractCegarLoop]: Abstraction has 498 states and 667 transitions. [2024-11-27 23:30:16,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 23:30:16,133 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 667 transitions. [2024-11-27 23:30:16,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-27 23:30:16,135 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:16,135 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-27 23:30:16,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-27 23:30:16,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-27 23:30:16,338 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:30:16,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:16,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1704986262, now seen corresponding path program 2 times [2024-11-27 23:30:16,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:16,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779167046] [2024-11-27 23:30:16,339 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:30:16,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:16,360 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:30:16,360 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:30:16,654 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 23:30:16,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:16,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779167046] [2024-11-27 23:30:16,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779167046] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:30:16,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [148658492] [2024-11-27 23:30:16,655 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:30:16,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:16,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:16,659 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:16,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-27 23:30:16,742 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:30:16,742 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:30:16,744 INFO L256 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 23:30:16,746 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:16,884 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 22 proven. 9 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 23:30:16,884 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:30:17,082 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 22 proven. 9 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 23:30:17,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [148658492] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:30:17,083 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:30:17,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 8 [2024-11-27 23:30:17,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525409018] [2024-11-27 23:30:17,083 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:30:17,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:30:17,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:17,084 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:30:17,084 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:30:17,085 INFO L87 Difference]: Start difference. First operand 498 states and 667 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 6 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) [2024-11-27 23:30:17,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:17,260 INFO L93 Difference]: Finished difference Result 507 states and 673 transitions. [2024-11-27 23:30:17,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:30:17,260 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 6 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) Word has length 108 [2024-11-27 23:30:17,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:17,263 INFO L225 Difference]: With dead ends: 507 [2024-11-27 23:30:17,263 INFO L226 Difference]: Without dead ends: 500 [2024-11-27 23:30:17,263 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 211 SyntacticMatches, 4 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:30:17,264 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 49 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:17,265 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 184 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:30:17,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2024-11-27 23:30:17,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 498. [2024-11-27 23:30:17,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 408 states have (on average 1.2573529411764706) internal successors, (513), 421 states have internal predecessors, (513), 75 states have call successors, (75), 1 states have call predecessors, (75), 1 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-27 23:30:17,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 663 transitions. [2024-11-27 23:30:17,318 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 663 transitions. Word has length 108 [2024-11-27 23:30:17,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:17,318 INFO L471 AbstractCegarLoop]: Abstraction has 498 states and 663 transitions. [2024-11-27 23:30:17,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 6 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) [2024-11-27 23:30:17,318 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 663 transitions. [2024-11-27 23:30:17,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-27 23:30:17,320 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:17,320 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1] [2024-11-27 23:30:17,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-27 23:30:17,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:17,521 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:30:17,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:17,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1737903690, now seen corresponding path program 2 times [2024-11-27 23:30:17,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:17,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494594826] [2024-11-27 23:30:17,521 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:30:17,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:17,536 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:30:17,537 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:30:17,658 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-27 23:30:17,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:17,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494594826] [2024-11-27 23:30:17,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494594826] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:30:17,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1409436951] [2024-11-27 23:30:17,659 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:30:17,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:17,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:17,661 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:17,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-27 23:30:17,721 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:30:17,722 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:30:17,724 INFO L256 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 23:30:17,726 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:17,814 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-27 23:30:17,814 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:30:18,008 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-27 23:30:18,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1409436951] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:30:18,008 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:30:18,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-11-27 23:30:18,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256339866] [2024-11-27 23:30:18,009 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:30:18,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 23:30:18,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:18,011 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 23:30:18,012 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:30:18,012 INFO L87 Difference]: Start difference. First operand 498 states and 663 transitions. Second operand has 13 states, 12 states have (on average 6.5) internal successors, (78), 13 states have internal predecessors, (78), 11 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 11 states have call predecessors, (33), 11 states have call successors, (33) [2024-11-27 23:30:18,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:18,546 INFO L93 Difference]: Finished difference Result 1138 states and 1520 transitions. [2024-11-27 23:30:18,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 23:30:18,546 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.5) internal successors, (78), 13 states have internal predecessors, (78), 11 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 11 states have call predecessors, (33), 11 states have call successors, (33) Word has length 110 [2024-11-27 23:30:18,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:18,553 INFO L225 Difference]: With dead ends: 1138 [2024-11-27 23:30:18,554 INFO L226 Difference]: Without dead ends: 1136 [2024-11-27 23:30:18,555 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:30:18,556 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 392 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:18,556 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 346 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 23:30:18,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2024-11-27 23:30:18,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 516. [2024-11-27 23:30:18,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 420 states have (on average 1.2428571428571429) internal successors, (522), 433 states have internal predecessors, (522), 81 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-27 23:30:18,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 684 transitions. [2024-11-27 23:30:18,630 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 684 transitions. Word has length 110 [2024-11-27 23:30:18,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:18,631 INFO L471 AbstractCegarLoop]: Abstraction has 516 states and 684 transitions. [2024-11-27 23:30:18,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.5) internal successors, (78), 13 states have internal predecessors, (78), 11 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 11 states have call predecessors, (33), 11 states have call successors, (33) [2024-11-27 23:30:18,631 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 684 transitions. [2024-11-27 23:30:18,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-27 23:30:18,633 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:18,633 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:18,644 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-27 23:30:18,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:18,834 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:30:18,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:18,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1843138788, now seen corresponding path program 1 times [2024-11-27 23:30:18,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:18,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723546531] [2024-11-27 23:30:18,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:18,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:18,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:19,085 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 23:30:19,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:19,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723546531] [2024-11-27 23:30:19,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723546531] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:30:19,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1276428146] [2024-11-27 23:30:19,086 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:19,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:19,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:19,089 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:19,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-27 23:30:19,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:19,155 INFO L256 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 23:30:19,158 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:19,666 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 20 proven. 16 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 23:30:19,667 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:30:20,230 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 22 proven. 14 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 23:30:20,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1276428146] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:30:20,231 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:30:20,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 19 [2024-11-27 23:30:20,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007917929] [2024-11-27 23:30:20,231 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:30:20,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-27 23:30:20,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:20,233 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-27 23:30:20,234 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=287, Unknown=0, NotChecked=0, Total=380 [2024-11-27 23:30:20,234 INFO L87 Difference]: Start difference. First operand 516 states and 684 transitions. Second operand has 20 states, 19 states have (on average 7.157894736842105) internal successors, (136), 20 states have internal predecessors, (136), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-11-27 23:30:21,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:21,188 INFO L93 Difference]: Finished difference Result 681 states and 908 transitions. [2024-11-27 23:30:21,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-27 23:30:21,189 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 7.157894736842105) internal successors, (136), 20 states have internal predecessors, (136), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) Word has length 110 [2024-11-27 23:30:21,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:21,191 INFO L225 Difference]: With dead ends: 681 [2024-11-27 23:30:21,192 INFO L226 Difference]: Without dead ends: 596 [2024-11-27 23:30:21,192 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=328, Invalid=862, Unknown=0, NotChecked=0, Total=1190 [2024-11-27 23:30:21,193 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 359 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:21,193 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 395 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 23:30:21,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2024-11-27 23:30:21,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 517. [2024-11-27 23:30:21,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 417 states have (on average 1.275779376498801) internal successors, (532), 430 states have internal predecessors, (532), 85 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-11-27 23:30:21,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 702 transitions. [2024-11-27 23:30:21,251 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 702 transitions. Word has length 110 [2024-11-27 23:30:21,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:21,252 INFO L471 AbstractCegarLoop]: Abstraction has 517 states and 702 transitions. [2024-11-27 23:30:21,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 7.157894736842105) internal successors, (136), 20 states have internal predecessors, (136), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-11-27 23:30:21,252 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 702 transitions. [2024-11-27 23:30:21,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-27 23:30:21,253 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:21,253 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:21,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-27 23:30:21,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-27 23:30:21,454 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:30:21,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:21,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1217148396, now seen corresponding path program 1 times [2024-11-27 23:30:21,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:21,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100720918] [2024-11-27 23:30:21,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:21,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:21,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:21,735 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 13 proven. 17 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2024-11-27 23:30:21,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:21,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100720918] [2024-11-27 23:30:21,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100720918] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:30:21,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [531628321] [2024-11-27 23:30:21,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:21,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:21,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:21,739 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:21,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-27 23:30:21,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:21,803 INFO L256 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 23:30:21,805 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:22,081 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 22 proven. 17 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 23:30:22,081 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:30:25,769 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 23:30:25,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [531628321] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:30:25,770 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:30:25,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 8] total 20 [2024-11-27 23:30:25,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675621500] [2024-11-27 23:30:25,770 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:30:25,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-27 23:30:25,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:25,771 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-27 23:30:25,772 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2024-11-27 23:30:25,772 INFO L87 Difference]: Start difference. First operand 517 states and 702 transitions. Second operand has 21 states, 20 states have (on average 7.3) internal successors, (146), 21 states have internal predecessors, (146), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) [2024-11-27 23:30:26,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:26,303 INFO L93 Difference]: Finished difference Result 709 states and 978 transitions. [2024-11-27 23:30:26,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 23:30:26,303 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 7.3) internal successors, (146), 21 states have internal predecessors, (146), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) Word has length 115 [2024-11-27 23:30:26,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:26,306 INFO L225 Difference]: With dead ends: 709 [2024-11-27 23:30:26,307 INFO L226 Difference]: Without dead ends: 708 [2024-11-27 23:30:26,307 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=204, Invalid=396, Unknown=0, NotChecked=0, Total=600 [2024-11-27 23:30:26,308 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 189 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:26,308 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 253 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 23:30:26,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-27 23:30:26,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 516. [2024-11-27 23:30:26,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 417 states have (on average 1.2661870503597121) internal successors, (528), 429 states have internal predecessors, (528), 85 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-11-27 23:30:26,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 698 transitions. [2024-11-27 23:30:26,370 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 698 transitions. Word has length 115 [2024-11-27 23:30:26,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:26,371 INFO L471 AbstractCegarLoop]: Abstraction has 516 states and 698 transitions. [2024-11-27 23:30:26,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 7.3) internal successors, (146), 21 states have internal predecessors, (146), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) [2024-11-27 23:30:26,371 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 698 transitions. [2024-11-27 23:30:26,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-27 23:30:26,372 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:26,372 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:26,382 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-27 23:30:26,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-27 23:30:26,573 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:30:26,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:26,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1667426633, now seen corresponding path program 3 times [2024-11-27 23:30:26,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:26,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651041004] [2024-11-27 23:30:26,574 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:30:26,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:26,623 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-11-27 23:30:26,623 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 23:30:26,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [733758945] [2024-11-27 23:30:26,624 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:30:26,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:26,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:26,627 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:26,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-27 23:30:26,676 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-27 23:30:26,676 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:30:26,677 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-27 23:30:26,680 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:27,247 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 39 proven. 4 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2024-11-27 23:30:27,247 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:30:47,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:47,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651041004] [2024-11-27 23:30:47,636 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:30:47,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733758945] [2024-11-27 23:30:47,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733758945] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:30:47,636 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:30:47,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-27 23:30:47,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963461995] [2024-11-27 23:30:47,636 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:30:47,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 23:30:47,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:47,637 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 23:30:47,637 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=177, Unknown=4, NotChecked=0, Total=240 [2024-11-27 23:30:47,638 INFO L87 Difference]: Start difference. First operand 516 states and 698 transitions. Second operand has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 23:30:48,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:48,533 INFO L93 Difference]: Finished difference Result 535 states and 714 transitions. [2024-11-27 23:30:48,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 23:30:48,534 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 116 [2024-11-27 23:30:48,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:48,537 INFO L225 Difference]: With dead ends: 535 [2024-11-27 23:30:48,537 INFO L226 Difference]: Without dead ends: 534 [2024-11-27 23:30:48,538 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 19.3s TimeCoverageRelationStatistics Valid=99, Invalid=277, Unknown=4, NotChecked=0, Total=380 [2024-11-27 23:30:48,541 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 73 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:48,542 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 78 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 23:30:48,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2024-11-27 23:30:48,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 516. [2024-11-27 23:30:48,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 417 states have (on average 1.2517985611510791) internal successors, (522), 429 states have internal predecessors, (522), 85 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-11-27 23:30:48,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 692 transitions. [2024-11-27 23:30:48,620 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 692 transitions. Word has length 116 [2024-11-27 23:30:48,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:48,621 INFO L471 AbstractCegarLoop]: Abstraction has 516 states and 692 transitions. [2024-11-27 23:30:48,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 23:30:48,621 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 692 transitions. [2024-11-27 23:30:48,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-27 23:30:48,624 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:48,625 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 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] [2024-11-27 23:30:48,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-27 23:30:48,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:48,828 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:30:48,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:48,829 INFO L85 PathProgramCache]: Analyzing trace with hash 923105496, now seen corresponding path program 1 times [2024-11-27 23:30:48,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:48,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432161445] [2024-11-27 23:30:48,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:48,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:48,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:49,253 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 23:30:49,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:49,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432161445] [2024-11-27 23:30:49,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432161445] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:30:49,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [543579008] [2024-11-27 23:30:49,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:49,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:49,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:49,257 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:49,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-27 23:30:49,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:49,330 INFO L256 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-27 23:30:49,332 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:50,106 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 23:30:50,106 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:30:52,849 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 23:30:52,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [543579008] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:30:52,850 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:30:52,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 21 [2024-11-27 23:30:52,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846635954] [2024-11-27 23:30:52,850 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:30:52,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-27 23:30:52,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:52,851 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-27 23:30:52,852 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=298, Unknown=0, NotChecked=0, Total=462 [2024-11-27 23:30:52,852 INFO L87 Difference]: Start difference. First operand 516 states and 692 transitions. Second operand has 22 states, 21 states have (on average 7.333333333333333) internal successors, (154), 22 states have internal predecessors, (154), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-11-27 23:30:55,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:55,529 INFO L93 Difference]: Finished difference Result 763 states and 998 transitions. [2024-11-27 23:30:55,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-27 23:30:55,529 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 7.333333333333333) internal successors, (154), 22 states have internal predecessors, (154), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) Word has length 116 [2024-11-27 23:30:55,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:55,535 INFO L225 Difference]: With dead ends: 763 [2024-11-27 23:30:55,535 INFO L226 Difference]: Without dead ends: 762 [2024-11-27 23:30:55,536 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=397, Invalid=659, Unknown=0, NotChecked=0, Total=1056 [2024-11-27 23:30:55,537 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 281 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 764 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:55,537 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 555 Invalid, 837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 764 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-27 23:30:55,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2024-11-27 23:30:55,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 651. [2024-11-27 23:30:55,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 651 states, 536 states have (on average 1.2406716417910448) internal successors, (665), 548 states have internal predecessors, (665), 101 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 101 states have call predecessors, (101), 101 states have call successors, (101) [2024-11-27 23:30:55,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 867 transitions. [2024-11-27 23:30:55,648 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 867 transitions. Word has length 116 [2024-11-27 23:30:55,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:55,648 INFO L471 AbstractCegarLoop]: Abstraction has 651 states and 867 transitions. [2024-11-27 23:30:55,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 7.333333333333333) internal successors, (154), 22 states have internal predecessors, (154), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-11-27 23:30:55,648 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 867 transitions. [2024-11-27 23:30:55,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-27 23:30:55,650 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:55,650 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 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, 2, 1, 1, 1, 1] [2024-11-27 23:30:55,662 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-27 23:30:55,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:55,855 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:30:55,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:55,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1448500624, now seen corresponding path program 2 times [2024-11-27 23:30:55,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:55,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857832979] [2024-11-27 23:30:55,856 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:30:55,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:55,886 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:30:55,886 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 23:30:55,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1301764491] [2024-11-27 23:30:55,890 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:30:55,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:55,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:55,892 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:55,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-27 23:30:55,949 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 23:30:55,949 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:30:55,950 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 23:30:55,953 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:56,181 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2024-11-27 23:30:56,181 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:30:56,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:56,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857832979] [2024-11-27 23:30:56,181 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:30:56,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301764491] [2024-11-27 23:30:56,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1301764491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:56,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:30:56,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:30:56,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851082360] [2024-11-27 23:30:56,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:56,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:30:56,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:56,183 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:30:56,183 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:30:56,183 INFO L87 Difference]: Start difference. First operand 651 states and 867 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 23:30:56,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:56,425 INFO L93 Difference]: Finished difference Result 651 states and 867 transitions. [2024-11-27 23:30:56,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:30:56,426 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 117 [2024-11-27 23:30:56,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:56,430 INFO L225 Difference]: With dead ends: 651 [2024-11-27 23:30:56,430 INFO L226 Difference]: Without dead ends: 650 [2024-11-27 23:30:56,430 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:30:56,431 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 62 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:56,431 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 67 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:30:56,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2024-11-27 23:30:56,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 608. [2024-11-27 23:30:56,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 608 states, 500 states have (on average 1.206) internal successors, (603), 511 states have internal predecessors, (603), 95 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2024-11-27 23:30:56,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 793 transitions. [2024-11-27 23:30:56,544 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 793 transitions. Word has length 117 [2024-11-27 23:30:56,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:56,545 INFO L471 AbstractCegarLoop]: Abstraction has 608 states and 793 transitions. [2024-11-27 23:30:56,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 23:30:56,545 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 793 transitions. [2024-11-27 23:30:56,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-27 23:30:56,547 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:56,547 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1] [2024-11-27 23:30:56,558 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-27 23:30:56,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:56,748 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:30:56,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:56,749 INFO L85 PathProgramCache]: Analyzing trace with hash -745593124, now seen corresponding path program 4 times [2024-11-27 23:30:56,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:56,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002704777] [2024-11-27 23:30:56,749 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 23:30:56,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:56,785 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 23:30:56,785 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:30:57,387 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 23:30:57,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:57,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002704777] [2024-11-27 23:30:57,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002704777] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:30:57,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981038619] [2024-11-27 23:30:57,388 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 23:30:57,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:57,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:57,391 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:57,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-27 23:30:57,511 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 23:30:57,511 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:30:57,513 INFO L256 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-27 23:30:57,516 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:59,029 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 23:30:59,029 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:31:00,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1981038619] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:31:00,156 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:31:00,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 15] total 24 [2024-11-27 23:31:00,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119731652] [2024-11-27 23:31:00,156 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:31:00,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-27 23:31:00,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:00,157 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-27 23:31:00,157 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=689, Unknown=0, NotChecked=0, Total=812 [2024-11-27 23:31:00,158 INFO L87 Difference]: Start difference. First operand 608 states and 793 transitions. Second operand has 25 states, 24 states have (on average 4.666666666666667) internal successors, (112), 25 states have internal predecessors, (112), 10 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2024-11-27 23:31:01,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:01,914 INFO L93 Difference]: Finished difference Result 691 states and 894 transitions. [2024-11-27 23:31:01,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 23:31:01,915 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 4.666666666666667) internal successors, (112), 25 states have internal predecessors, (112), 10 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) Word has length 120 [2024-11-27 23:31:01,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:01,919 INFO L225 Difference]: With dead ends: 691 [2024-11-27 23:31:01,919 INFO L226 Difference]: Without dead ends: 684 [2024-11-27 23:31:01,920 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 117 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=260, Invalid=1462, Unknown=0, NotChecked=0, Total=1722 [2024-11-27 23:31:01,920 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 218 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 1174 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 1216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:01,921 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 311 Invalid, 1216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1174 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-27 23:31:01,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2024-11-27 23:31:02,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 637. [2024-11-27 23:31:02,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 525 states have (on average 1.2019047619047618) internal successors, (631), 536 states have internal predecessors, (631), 99 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-27 23:31:02,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 829 transitions. [2024-11-27 23:31:02,028 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 829 transitions. Word has length 120 [2024-11-27 23:31:02,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:02,028 INFO L471 AbstractCegarLoop]: Abstraction has 637 states and 829 transitions. [2024-11-27 23:31:02,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 4.666666666666667) internal successors, (112), 25 states have internal predecessors, (112), 10 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2024-11-27 23:31:02,029 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 829 transitions. [2024-11-27 23:31:02,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-27 23:31:02,030 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:02,031 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:02,042 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-27 23:31:02,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:02,235 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:31:02,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:02,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1067087421, now seen corresponding path program 1 times [2024-11-27 23:31:02,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:02,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592310307] [2024-11-27 23:31:02,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:02,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:02,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:31:02,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1972518412] [2024-11-27 23:31:02,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:02,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:02,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:31:02,268 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:31:02,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-27 23:31:02,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:02,340 INFO L256 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 23:31:02,342 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:31:02,674 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2024-11-27 23:31:02,675 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:31:02,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:02,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592310307] [2024-11-27 23:31:02,675 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:31:02,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1972518412] [2024-11-27 23:31:02,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1972518412] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:02,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:02,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:31:02,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79763943] [2024-11-27 23:31:02,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:02,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:31:02,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:02,677 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:31:02,677 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:31:02,678 INFO L87 Difference]: Start difference. First operand 637 states and 829 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 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) [2024-11-27 23:31:02,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:02,840 INFO L93 Difference]: Finished difference Result 637 states and 829 transitions. [2024-11-27 23:31:02,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:31:02,841 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 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 123 [2024-11-27 23:31:02,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:02,845 INFO L225 Difference]: With dead ends: 637 [2024-11-27 23:31:02,846 INFO L226 Difference]: Without dead ends: 635 [2024-11-27 23:31:02,846 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:31:02,847 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 26 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 59 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 [2024-11-27 23:31:02,847 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 59 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:31:02,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2024-11-27 23:31:02,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 510. [2024-11-27 23:31:02,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 416 states have (on average 1.1610576923076923) internal successors, (483), 425 states have internal predecessors, (483), 83 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-27 23:31:02,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 649 transitions. [2024-11-27 23:31:02,955 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 649 transitions. Word has length 123 [2024-11-27 23:31:02,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:02,956 INFO L471 AbstractCegarLoop]: Abstraction has 510 states and 649 transitions. [2024-11-27 23:31:02,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 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) [2024-11-27 23:31:02,956 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 649 transitions. [2024-11-27 23:31:02,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-27 23:31:02,958 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:02,958 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:02,970 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-27 23:31:03,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:03,159 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:31:03,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:03,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1063137537, now seen corresponding path program 1 times [2024-11-27 23:31:03,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:03,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064698952] [2024-11-27 23:31:03,159 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:03,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:03,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:31:03,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1970548208] [2024-11-27 23:31:03,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:03,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:03,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:31:03,194 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:31:03,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-27 23:31:03,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:03,292 INFO L256 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-27 23:31:03,295 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:31:04,326 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-27 23:31:04,326 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:31:04,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:04,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064698952] [2024-11-27 23:31:04,981 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:31:04,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1970548208] [2024-11-27 23:31:04,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1970548208] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:31:04,981 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:31:04,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-27 23:31:04,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235955156] [2024-11-27 23:31:04,982 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:31:04,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 23:31:04,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:04,983 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 23:31:04,983 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2024-11-27 23:31:04,983 INFO L87 Difference]: Start difference. First operand 510 states and 649 transitions. Second operand has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-27 23:31:06,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:06,276 INFO L93 Difference]: Finished difference Result 513 states and 651 transitions. [2024-11-27 23:31:06,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 23:31:06,276 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 130 [2024-11-27 23:31:06,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:06,279 INFO L225 Difference]: With dead ends: 513 [2024-11-27 23:31:06,279 INFO L226 Difference]: Without dead ends: 511 [2024-11-27 23:31:06,279 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2024-11-27 23:31:06,280 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 14 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 744 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:06,280 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 202 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 744 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-27 23:31:06,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2024-11-27 23:31:06,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 510. [2024-11-27 23:31:06,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 416 states have (on average 1.1586538461538463) internal successors, (482), 425 states have internal predecessors, (482), 83 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-27 23:31:06,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 648 transitions. [2024-11-27 23:31:06,365 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 648 transitions. Word has length 130 [2024-11-27 23:31:06,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:06,365 INFO L471 AbstractCegarLoop]: Abstraction has 510 states and 648 transitions. [2024-11-27 23:31:06,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-27 23:31:06,365 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 648 transitions. [2024-11-27 23:31:06,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-27 23:31:06,367 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:06,367 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 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, 2, 2, 1, 1, 1, 1, 1] [2024-11-27 23:31:06,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-11-27 23:31:06,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-27 23:31:06,571 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:31:06,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:06,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1393283589, now seen corresponding path program 3 times [2024-11-27 23:31:06,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:06,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109441098] [2024-11-27 23:31:06,572 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:31:06,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:06,611 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-11-27 23:31:06,613 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 23:31:06,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2103540053] [2024-11-27 23:31:06,614 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:31:06,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:06,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:31:06,617 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:31:06,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-27 23:31:06,674 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-27 23:31:06,675 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:31:06,676 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-27 23:31:06,679 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:31:07,116 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 74 proven. 33 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked. [2024-11-27 23:31:07,116 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:31:07,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:07,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109441098] [2024-11-27 23:31:07,527 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:31:07,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2103540053] [2024-11-27 23:31:07,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2103540053] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:31:07,527 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:31:07,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-27 23:31:07,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358252423] [2024-11-27 23:31:07,527 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:31:07,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 23:31:07,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:07,528 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 23:31:07,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2024-11-27 23:31:07,528 INFO L87 Difference]: Start difference. First operand 510 states and 648 transitions. Second operand has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-27 23:31:08,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:08,191 INFO L93 Difference]: Finished difference Result 513 states and 650 transitions. [2024-11-27 23:31:08,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 23:31:08,191 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) Word has length 134 [2024-11-27 23:31:08,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:08,194 INFO L225 Difference]: With dead ends: 513 [2024-11-27 23:31:08,194 INFO L226 Difference]: Without dead ends: 511 [2024-11-27 23:31:08,194 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=127, Invalid=379, Unknown=0, NotChecked=0, Total=506 [2024-11-27 23:31:08,195 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 115 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:08,195 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 64 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 23:31:08,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2024-11-27 23:31:08,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 508. [2024-11-27 23:31:08,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 415 states have (on average 1.1542168674698796) internal successors, (479), 423 states have internal predecessors, (479), 83 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-27 23:31:08,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 645 transitions. [2024-11-27 23:31:08,268 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 645 transitions. Word has length 134 [2024-11-27 23:31:08,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:08,268 INFO L471 AbstractCegarLoop]: Abstraction has 508 states and 645 transitions. [2024-11-27 23:31:08,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-27 23:31:08,269 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 645 transitions. [2024-11-27 23:31:08,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-27 23:31:08,270 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:08,270 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 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, 2, 2, 2, 1, 1, 1, 1] [2024-11-27 23:31:08,279 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-27 23:31:08,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-27 23:31:08,471 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:31:08,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:08,471 INFO L85 PathProgramCache]: Analyzing trace with hash -981721881, now seen corresponding path program 1 times [2024-11-27 23:31:08,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:08,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143262998] [2024-11-27 23:31:08,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:08,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:08,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:09,145 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-27 23:31:09,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:09,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143262998] [2024-11-27 23:31:09,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143262998] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:31:09,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1771653754] [2024-11-27 23:31:09,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:09,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:09,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:31:09,148 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:31:09,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-27 23:31:09,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:09,235 INFO L256 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-27 23:31:09,237 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:31:10,470 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-27 23:31:10,470 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:31:14,266 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-27 23:31:14,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1771653754] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:31:14,266 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:31:14,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 10] total 34 [2024-11-27 23:31:14,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489626689] [2024-11-27 23:31:14,267 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:31:14,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-27 23:31:14,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:14,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-27 23:31:14,268 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=304, Invalid=886, Unknown=0, NotChecked=0, Total=1190 [2024-11-27 23:31:14,269 INFO L87 Difference]: Start difference. First operand 508 states and 645 transitions. Second operand has 35 states, 34 states have (on average 5.764705882352941) internal successors, (196), 35 states have internal predecessors, (196), 18 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 18 states have call predecessors, (45), 18 states have call successors, (45) [2024-11-27 23:31:19,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:19,100 INFO L93 Difference]: Finished difference Result 726 states and 933 transitions. [2024-11-27 23:31:19,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-27 23:31:19,101 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 5.764705882352941) internal successors, (196), 35 states have internal predecessors, (196), 18 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 18 states have call predecessors, (45), 18 states have call successors, (45) Word has length 140 [2024-11-27 23:31:19,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:19,103 INFO L225 Difference]: With dead ends: 726 [2024-11-27 23:31:19,103 INFO L226 Difference]: Without dead ends: 724 [2024-11-27 23:31:19,104 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 850 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=854, Invalid=2116, Unknown=0, NotChecked=0, Total=2970 [2024-11-27 23:31:19,104 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 534 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 1274 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 1428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 1274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:19,105 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 493 Invalid, 1428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 1274 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-27 23:31:19,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2024-11-27 23:31:19,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 602. [2024-11-27 23:31:19,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 499 states have (on average 1.1683366733466933) internal successors, (583), 507 states have internal predecessors, (583), 93 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-27 23:31:19,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 769 transitions. [2024-11-27 23:31:19,233 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 769 transitions. Word has length 140 [2024-11-27 23:31:19,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:19,233 INFO L471 AbstractCegarLoop]: Abstraction has 602 states and 769 transitions. [2024-11-27 23:31:19,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 5.764705882352941) internal successors, (196), 35 states have internal predecessors, (196), 18 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 18 states have call predecessors, (45), 18 states have call successors, (45) [2024-11-27 23:31:19,234 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 769 transitions. [2024-11-27 23:31:19,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-27 23:31:19,235 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:19,235 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-27 23:31:19,246 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-27 23:31:19,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-27 23:31:19,436 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:31:19,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:19,436 INFO L85 PathProgramCache]: Analyzing trace with hash -772444646, now seen corresponding path program 5 times [2024-11-27 23:31:19,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:19,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886834674] [2024-11-27 23:31:19,437 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 23:31:19,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:19,498 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-11-27 23:31:19,502 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 23:31:19,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [359616982] [2024-11-27 23:31:19,504 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 23:31:19,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:19,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:31:19,509 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:31:19,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-27 23:31:19,595 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-11-27 23:31:19,596 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:31:19,597 INFO L256 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-27 23:31:19,600 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:31:21,273 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-27 23:31:21,273 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:31:26,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:26,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886834674] [2024-11-27 23:31:26,671 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:31:26,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [359616982] [2024-11-27 23:31:26,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [359616982] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:31:26,671 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:31:26,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2024-11-27 23:31:26,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371317031] [2024-11-27 23:31:26,672 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:31:26,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-27 23:31:26,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:26,675 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-27 23:31:26,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=459, Unknown=1, NotChecked=0, Total=552 [2024-11-27 23:31:26,675 INFO L87 Difference]: Start difference. First operand 602 states and 769 transitions. Second operand has 19 states, 18 states have (on average 3.611111111111111) internal successors, (65), 19 states have internal predecessors, (65), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-11-27 23:31:28,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:28,862 INFO L93 Difference]: Finished difference Result 793 states and 1006 transitions. [2024-11-27 23:31:28,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-27 23:31:28,863 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.611111111111111) internal successors, (65), 19 states have internal predecessors, (65), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 142 [2024-11-27 23:31:28,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:28,865 INFO L225 Difference]: With dead ends: 793 [2024-11-27 23:31:28,865 INFO L226 Difference]: Without dead ends: 645 [2024-11-27 23:31:28,866 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=102, Invalid=497, Unknown=1, NotChecked=0, Total=600 [2024-11-27 23:31:28,866 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 36 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 1664 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 1670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:28,866 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 404 Invalid, 1670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1664 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-27 23:31:28,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2024-11-27 23:31:28,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 611. [2024-11-27 23:31:28,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 508 states have (on average 1.1633858267716535) internal successors, (591), 516 states have internal predecessors, (591), 93 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-27 23:31:28,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 777 transitions. [2024-11-27 23:31:28,975 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 777 transitions. Word has length 142 [2024-11-27 23:31:28,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:28,976 INFO L471 AbstractCegarLoop]: Abstraction has 611 states and 777 transitions. [2024-11-27 23:31:28,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.611111111111111) internal successors, (65), 19 states have internal predecessors, (65), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-11-27 23:31:28,976 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 777 transitions. [2024-11-27 23:31:28,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-27 23:31:28,978 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:28,978 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 4, 4, 4, 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-27 23:31:28,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-11-27 23:31:29,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-27 23:31:29,182 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:31:29,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:29,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1053051917, now seen corresponding path program 1 times [2024-11-27 23:31:29,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:29,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107054158] [2024-11-27 23:31:29,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:29,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:29,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:29,838 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 2 proven. 78 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-27 23:31:29,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:29,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107054158] [2024-11-27 23:31:29,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107054158] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:31:29,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [718246458] [2024-11-27 23:31:29,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:29,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:29,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:31:29,841 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:31:29,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-27 23:31:29,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:29,916 INFO L256 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-27 23:31:29,921 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:31:31,032 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 14 proven. 66 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-27 23:31:31,033 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:31:31,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [718246458] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:31:31,564 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:31:31,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 24 [2024-11-27 23:31:31,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265644266] [2024-11-27 23:31:31,565 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:31:31,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-27 23:31:31,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:31,565 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-27 23:31:31,566 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=656, Unknown=0, NotChecked=0, Total=756 [2024-11-27 23:31:31,566 INFO L87 Difference]: Start difference. First operand 611 states and 777 transitions. Second operand has 25 states, 24 states have (on average 5.666666666666667) internal successors, (136), 25 states have internal predecessors, (136), 12 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 12 states have call predecessors, (30), 12 states have call successors, (30) [2024-11-27 23:31:34,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:34,339 INFO L93 Difference]: Finished difference Result 756 states and 950 transitions. [2024-11-27 23:31:34,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-27 23:31:34,340 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 5.666666666666667) internal successors, (136), 25 states have internal predecessors, (136), 12 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 12 states have call predecessors, (30), 12 states have call successors, (30) Word has length 142 [2024-11-27 23:31:34,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:34,342 INFO L225 Difference]: With dead ends: 756 [2024-11-27 23:31:34,342 INFO L226 Difference]: Without dead ends: 755 [2024-11-27 23:31:34,343 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=431, Invalid=2221, Unknown=0, NotChecked=0, Total=2652 [2024-11-27 23:31:34,343 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 423 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 1175 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 1257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:34,344 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 581 Invalid, 1257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1175 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-27 23:31:34,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2024-11-27 23:31:34,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 629. [2024-11-27 23:31:34,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 524 states have (on average 1.1603053435114503) internal successors, (608), 532 states have internal predecessors, (608), 95 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2024-11-27 23:31:34,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 798 transitions. [2024-11-27 23:31:34,439 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 798 transitions. Word has length 142 [2024-11-27 23:31:34,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:34,439 INFO L471 AbstractCegarLoop]: Abstraction has 629 states and 798 transitions. [2024-11-27 23:31:34,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 5.666666666666667) internal successors, (136), 25 states have internal predecessors, (136), 12 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 12 states have call predecessors, (30), 12 states have call successors, (30) [2024-11-27 23:31:34,440 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 798 transitions. [2024-11-27 23:31:34,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-27 23:31:34,441 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:34,441 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-27 23:31:34,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2024-11-27 23:31:34,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-27 23:31:34,645 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:31:34,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:34,646 INFO L85 PathProgramCache]: Analyzing trace with hash -198879849, now seen corresponding path program 1 times [2024-11-27 23:31:34,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:34,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568581712] [2024-11-27 23:31:34,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:34,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:34,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:34,913 INFO L134 CoverageAnalysis]: Checked inductivity of 692 backedges. 22 proven. 58 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-27 23:31:34,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:34,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568581712] [2024-11-27 23:31:34,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568581712] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:31:34,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2103026256] [2024-11-27 23:31:34,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:34,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:34,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:31:34,916 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:31:34,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-27 23:31:34,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:34,996 INFO L256 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-27 23:31:35,001 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:31:35,528 INFO L134 CoverageAnalysis]: Checked inductivity of 692 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-27 23:31:35,529 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:31:35,983 INFO L134 CoverageAnalysis]: Checked inductivity of 692 backedges. 48 proven. 32 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-27 23:31:35,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2103026256] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:31:35,983 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:31:35,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 11, 6] total 14 [2024-11-27 23:31:35,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291377124] [2024-11-27 23:31:35,983 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:31:35,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 23:31:35,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:35,984 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 23:31:35,984 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2024-11-27 23:31:35,985 INFO L87 Difference]: Start difference. First operand 629 states and 798 transitions. Second operand has 14 states, 14 states have (on average 7.857142857142857) internal successors, (110), 14 states have internal predecessors, (110), 9 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 9 states have call predecessors, (35), 9 states have call successors, (35) [2024-11-27 23:31:36,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:36,583 INFO L93 Difference]: Finished difference Result 764 states and 965 transitions. [2024-11-27 23:31:36,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 23:31:36,584 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.857142857142857) internal successors, (110), 14 states have internal predecessors, (110), 9 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 9 states have call predecessors, (35), 9 states have call successors, (35) Word has length 153 [2024-11-27 23:31:36,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:36,586 INFO L225 Difference]: With dead ends: 764 [2024-11-27 23:31:36,586 INFO L226 Difference]: Without dead ends: 758 [2024-11-27 23:31:36,586 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 293 SyntacticMatches, 9 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2024-11-27 23:31:36,586 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 83 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:36,587 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 257 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 23:31:36,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2024-11-27 23:31:36,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 737. [2024-11-27 23:31:36,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 737 states, 616 states have (on average 1.150974025974026) internal successors, (709), 624 states have internal predecessors, (709), 111 states have call successors, (111), 1 states have call predecessors, (111), 1 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2024-11-27 23:31:36,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 931 transitions. [2024-11-27 23:31:36,698 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 931 transitions. Word has length 153 [2024-11-27 23:31:36,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:36,698 INFO L471 AbstractCegarLoop]: Abstraction has 737 states and 931 transitions. [2024-11-27 23:31:36,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.857142857142857) internal successors, (110), 14 states have internal predecessors, (110), 9 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 9 states have call predecessors, (35), 9 states have call successors, (35) [2024-11-27 23:31:36,699 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 931 transitions. [2024-11-27 23:31:36,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-27 23:31:36,700 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:36,700 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:36,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-11-27 23:31:36,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-27 23:31:36,900 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:31:36,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:36,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1145511454, now seen corresponding path program 2 times [2024-11-27 23:31:36,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:36,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071387331] [2024-11-27 23:31:36,901 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:31:36,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:36,917 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:31:36,917 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:31:37,386 INFO L134 CoverageAnalysis]: Checked inductivity of 635 backedges. 37 proven. 54 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 23:31:37,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:37,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071387331] [2024-11-27 23:31:37,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071387331] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:31:37,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320508887] [2024-11-27 23:31:37,387 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:31:37,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:37,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:31:37,389 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:31:37,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-27 23:31:37,467 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:31:37,468 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:31:37,469 INFO L256 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-27 23:31:37,472 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:31:38,066 INFO L134 CoverageAnalysis]: Checked inductivity of 635 backedges. 150 proven. 61 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-27 23:31:38,066 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:31:40,445 INFO L134 CoverageAnalysis]: Checked inductivity of 635 backedges. 41 proven. 50 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 23:31:40,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1320508887] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:31:40,445 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:31:40,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10, 10] total 23 [2024-11-27 23:31:40,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431127230] [2024-11-27 23:31:40,445 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:31:40,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-27 23:31:40,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:40,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-27 23:31:40,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=414, Unknown=0, NotChecked=0, Total=506 [2024-11-27 23:31:40,447 INFO L87 Difference]: Start difference. First operand 737 states and 931 transitions. Second operand has 23 states, 23 states have (on average 8.26086956521739) internal successors, (190), 23 states have internal predecessors, (190), 14 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (49), 14 states have call predecessors, (49), 14 states have call successors, (49) [2024-11-27 23:31:42,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:42,043 INFO L93 Difference]: Finished difference Result 892 states and 1137 transitions. [2024-11-27 23:31:42,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-27 23:31:42,043 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 8.26086956521739) internal successors, (190), 23 states have internal predecessors, (190), 14 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (49), 14 states have call predecessors, (49), 14 states have call successors, (49) Word has length 153 [2024-11-27 23:31:42,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:42,045 INFO L225 Difference]: With dead ends: 892 [2024-11-27 23:31:42,045 INFO L226 Difference]: Without dead ends: 461 [2024-11-27 23:31:42,046 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=263, Invalid=1143, Unknown=0, NotChecked=0, Total=1406 [2024-11-27 23:31:42,046 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 97 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:42,047 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 426 Invalid, 842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 806 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 23:31:42,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2024-11-27 23:31:42,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 461. [2024-11-27 23:31:42,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 376 states have (on average 1.1702127659574468) internal successors, (440), 384 states have internal predecessors, (440), 75 states have call successors, (75), 1 states have call predecessors, (75), 1 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-27 23:31:42,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 590 transitions. [2024-11-27 23:31:42,127 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 590 transitions. Word has length 153 [2024-11-27 23:31:42,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:42,128 INFO L471 AbstractCegarLoop]: Abstraction has 461 states and 590 transitions. [2024-11-27 23:31:42,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 8.26086956521739) internal successors, (190), 23 states have internal predecessors, (190), 14 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (49), 14 states have call predecessors, (49), 14 states have call successors, (49) [2024-11-27 23:31:42,128 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 590 transitions. [2024-11-27 23:31:42,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-27 23:31:42,129 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:42,129 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1] [2024-11-27 23:31:42,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2024-11-27 23:31:42,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2024-11-27 23:31:42,330 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:31:42,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:42,330 INFO L85 PathProgramCache]: Analyzing trace with hash 511045854, now seen corresponding path program 1 times [2024-11-27 23:31:42,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:42,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933770270] [2024-11-27 23:31:42,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:42,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:42,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:42,641 INFO L134 CoverageAnalysis]: Checked inductivity of 698 backedges. 26 proven. 60 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-27 23:31:42,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:42,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933770270] [2024-11-27 23:31:42,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933770270] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:31:42,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [727463641] [2024-11-27 23:31:42,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:42,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:42,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:31:42,644 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:31:42,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-27 23:31:42,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:42,712 INFO L256 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 23:31:42,714 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:31:42,820 INFO L134 CoverageAnalysis]: Checked inductivity of 698 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 670 trivial. 0 not checked. [2024-11-27 23:31:42,820 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:31:42,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [727463641] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:42,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:31:42,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-27 23:31:42,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571627481] [2024-11-27 23:31:42,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:42,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:31:42,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:42,821 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:31:42,821 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:31:42,821 INFO L87 Difference]: Start difference. First operand 461 states and 590 transitions. Second operand has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:31:42,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:42,999 INFO L93 Difference]: Finished difference Result 461 states and 590 transitions. [2024-11-27 23:31:42,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:31:43,000 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 156 [2024-11-27 23:31:43,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:43,001 INFO L225 Difference]: With dead ends: 461 [2024-11-27 23:31:43,001 INFO L226 Difference]: Without dead ends: 460 [2024-11-27 23:31:43,001 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 156 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:31:43,002 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 38 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:43,002 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 68 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:31:43,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2024-11-27 23:31:43,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 450. [2024-11-27 23:31:43,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 368 states have (on average 1.1521739130434783) internal successors, (424), 375 states have internal predecessors, (424), 73 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-27 23:31:43,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 570 transitions. [2024-11-27 23:31:43,068 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 570 transitions. Word has length 156 [2024-11-27 23:31:43,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:43,068 INFO L471 AbstractCegarLoop]: Abstraction has 450 states and 570 transitions. [2024-11-27 23:31:43,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:31:43,068 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 570 transitions. [2024-11-27 23:31:43,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-27 23:31:43,069 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:43,069 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:43,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2024-11-27 23:31:43,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:43,270 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:31:43,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:43,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1484759763, now seen corresponding path program 1 times [2024-11-27 23:31:43,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:43,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987670223] [2024-11-27 23:31:43,270 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:43,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:43,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:44,067 INFO L134 CoverageAnalysis]: Checked inductivity of 706 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-27 23:31:44,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:44,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987670223] [2024-11-27 23:31:44,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987670223] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:31:44,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [983089827] [2024-11-27 23:31:44,068 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:44,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:44,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:31:44,073 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:31:44,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-27 23:31:44,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:44,163 INFO L256 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-27 23:31:44,166 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:31:45,369 INFO L134 CoverageAnalysis]: Checked inductivity of 706 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-27 23:31:45,369 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:31:51,789 INFO L134 CoverageAnalysis]: Checked inductivity of 706 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-27 23:31:51,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [983089827] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:31:51,789 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:31:51,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 8] total 29 [2024-11-27 23:31:51,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729194441] [2024-11-27 23:31:51,790 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:31:51,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-27 23:31:51,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:51,802 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-27 23:31:51,803 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=277, Invalid=593, Unknown=0, NotChecked=0, Total=870 [2024-11-27 23:31:51,803 INFO L87 Difference]: Start difference. First operand 450 states and 570 transitions. Second operand has 30 states, 29 states have (on average 7.275862068965517) internal successors, (211), 30 states have internal predecessors, (211), 18 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 18 states have call predecessors, (54), 18 states have call successors, (54) [2024-11-27 23:31:58,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:58,950 INFO L93 Difference]: Finished difference Result 822 states and 1030 transitions. [2024-11-27 23:31:58,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-27 23:31:58,951 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 7.275862068965517) internal successors, (211), 30 states have internal predecessors, (211), 18 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 18 states have call predecessors, (54), 18 states have call successors, (54) Word has length 160 [2024-11-27 23:31:58,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:58,962 INFO L225 Difference]: With dead ends: 822 [2024-11-27 23:31:58,962 INFO L226 Difference]: Without dead ends: 821 [2024-11-27 23:31:58,964 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 960 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=1072, Invalid=1898, Unknown=0, NotChecked=0, Total=2970 [2024-11-27 23:31:58,966 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 559 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 1203 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 566 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 1351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 1203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:58,967 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [566 Valid, 590 Invalid, 1351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 1203 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-27 23:31:58,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2024-11-27 23:31:59,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 693. [2024-11-27 23:31:59,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 579 states have (on average 1.145077720207254) internal successors, (663), 586 states have internal predecessors, (663), 105 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2024-11-27 23:31:59,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 873 transitions. [2024-11-27 23:31:59,403 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 873 transitions. Word has length 160 [2024-11-27 23:31:59,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:59,407 INFO L471 AbstractCegarLoop]: Abstraction has 693 states and 873 transitions. [2024-11-27 23:31:59,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 7.275862068965517) internal successors, (211), 30 states have internal predecessors, (211), 18 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 18 states have call predecessors, (54), 18 states have call successors, (54) [2024-11-27 23:31:59,407 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 873 transitions. [2024-11-27 23:31:59,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-27 23:31:59,420 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:59,420 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-27 23:31:59,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2024-11-27 23:31:59,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:59,622 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:31:59,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:59,628 INFO L85 PathProgramCache]: Analyzing trace with hash 425693912, now seen corresponding path program 6 times [2024-11-27 23:31:59,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:59,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558908055] [2024-11-27 23:31:59,628 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-27 23:31:59,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:00,023 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2024-11-27 23:32:00,023 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 23:32:00,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [986252571] [2024-11-27 23:32:00,032 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-27 23:32:00,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:00,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:32:00,034 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:32:00,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-27 23:32:00,168 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2024-11-27 23:32:00,169 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:32:00,170 INFO L256 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-27 23:32:00,179 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:32:02,923 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 54 proven. 26 refuted. 0 times theorem prover too weak. 714 trivial. 0 not checked. [2024-11-27 23:32:02,923 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:32:05,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:05,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558908055] [2024-11-27 23:32:05,156 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:32:05,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [986252571] [2024-11-27 23:32:05,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [986252571] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:32:05,156 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:32:05,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-27 23:32:05,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950843734] [2024-11-27 23:32:05,156 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:32:05,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 23:32:05,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:05,157 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 23:32:05,158 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2024-11-27 23:32:05,158 INFO L87 Difference]: Start difference. First operand 693 states and 873 transitions. Second operand has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 states have internal predecessors, (52), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:32:06,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:06,739 INFO L93 Difference]: Finished difference Result 786 states and 985 transitions. [2024-11-27 23:32:06,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 23:32:06,739 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 states have internal predecessors, (52), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 164 [2024-11-27 23:32:06,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:06,745 INFO L225 Difference]: With dead ends: 786 [2024-11-27 23:32:06,745 INFO L226 Difference]: Without dead ends: 785 [2024-11-27 23:32:06,746 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=79, Invalid=301, Unknown=0, NotChecked=0, Total=380 [2024-11-27 23:32:06,747 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 34 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:06,748 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 165 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-27 23:32:06,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785 states. [2024-11-27 23:32:07,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785 to 693. [2024-11-27 23:32:07,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 579 states have (on average 1.1416234887737478) internal successors, (661), 586 states have internal predecessors, (661), 105 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2024-11-27 23:32:07,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 871 transitions. [2024-11-27 23:32:07,041 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 871 transitions. Word has length 164 [2024-11-27 23:32:07,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:07,042 INFO L471 AbstractCegarLoop]: Abstraction has 693 states and 871 transitions. [2024-11-27 23:32:07,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 states have internal predecessors, (52), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:32:07,042 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 871 transitions. [2024-11-27 23:32:07,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-27 23:32:07,046 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:07,047 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-27 23:32:07,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2024-11-27 23:32:07,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2024-11-27 23:32:07,248 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:32:07,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:07,253 INFO L85 PathProgramCache]: Analyzing trace with hash 145086641, now seen corresponding path program 2 times [2024-11-27 23:32:07,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:07,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348195773] [2024-11-27 23:32:07,253 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:32:07,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:07,326 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:32:07,326 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:32:08,606 INFO L134 CoverageAnalysis]: Checked inductivity of 718 backedges. 2 proven. 104 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-27 23:32:08,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:08,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348195773] [2024-11-27 23:32:08,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348195773] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:32:08,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2011189106] [2024-11-27 23:32:08,607 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:32:08,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:08,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:32:08,610 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:32:08,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-11-27 23:32:08,742 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:32:08,742 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:32:08,744 INFO L256 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-27 23:32:08,751 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:32:10,975 INFO L134 CoverageAnalysis]: Checked inductivity of 718 backedges. 0 proven. 106 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-27 23:32:10,975 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:32:11,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2011189106] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:32:11,705 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:32:11,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2024-11-27 23:32:11,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278057833] [2024-11-27 23:32:11,705 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:32:11,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-27 23:32:11,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:11,706 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-27 23:32:11,707 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=792, Unknown=0, NotChecked=0, Total=930 [2024-11-27 23:32:11,707 INFO L87 Difference]: Start difference. First operand 693 states and 871 transitions. Second operand has 28 states, 27 states have (on average 5.555555555555555) internal successors, (150), 28 states have internal predecessors, (150), 14 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 14 states have call predecessors, (36), 14 states have call successors, (36) [2024-11-27 23:32:16,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:16,198 INFO L93 Difference]: Finished difference Result 983 states and 1229 transitions. [2024-11-27 23:32:16,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-27 23:32:16,199 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 5.555555555555555) internal successors, (150), 28 states have internal predecessors, (150), 14 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 14 states have call predecessors, (36), 14 states have call successors, (36) Word has length 164 [2024-11-27 23:32:16,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:16,207 INFO L225 Difference]: With dead ends: 983 [2024-11-27 23:32:16,207 INFO L226 Difference]: Without dead ends: 971 [2024-11-27 23:32:16,212 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 162 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1072 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=734, Invalid=3172, Unknown=0, NotChecked=0, Total=3906 [2024-11-27 23:32:16,213 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 901 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 1374 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 906 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 1546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 1374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:16,213 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [906 Valid, 621 Invalid, 1546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 1374 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-27 23:32:16,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2024-11-27 23:32:16,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 846. [2024-11-27 23:32:16,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 846 states, 714 states have (on average 1.134453781512605) internal successors, (810), 721 states have internal predecessors, (810), 123 states have call successors, (123), 1 states have call predecessors, (123), 1 states have return successors, (123), 123 states have call predecessors, (123), 123 states have call successors, (123) [2024-11-27 23:32:16,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 1056 transitions. [2024-11-27 23:32:16,517 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 1056 transitions. Word has length 164 [2024-11-27 23:32:16,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:16,521 INFO L471 AbstractCegarLoop]: Abstraction has 846 states and 1056 transitions. [2024-11-27 23:32:16,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 5.555555555555555) internal successors, (150), 28 states have internal predecessors, (150), 14 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 14 states have call predecessors, (36), 14 states have call successors, (36) [2024-11-27 23:32:16,522 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 1056 transitions. [2024-11-27 23:32:16,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-27 23:32:16,524 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:16,524 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-27 23:32:16,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2024-11-27 23:32:16,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-11-27 23:32:16,725 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:32:16,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:16,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1897088273, now seen corresponding path program 3 times [2024-11-27 23:32:16,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:16,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929250157] [2024-11-27 23:32:16,727 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:32:16,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:16,843 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2024-11-27 23:32:16,843 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 23:32:16,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [696582707] [2024-11-27 23:32:16,849 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:32:16,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:16,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:32:16,853 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:32:16,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-11-27 23:32:16,924 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-27 23:32:16,925 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:32:16,926 INFO L256 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-27 23:32:16,929 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:32:18,248 INFO L134 CoverageAnalysis]: Checked inductivity of 982 backedges. 100 proven. 4 refuted. 0 times theorem prover too weak. 878 trivial. 0 not checked. [2024-11-27 23:32:18,248 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:32:22,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:22,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929250157] [2024-11-27 23:32:22,764 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:32:22,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [696582707] [2024-11-27 23:32:22,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [696582707] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:32:22,765 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:32:22,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-27 23:32:22,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462707646] [2024-11-27 23:32:22,765 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:32:22,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-27 23:32:22,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:22,766 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-27 23:32:22,766 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=384, Unknown=0, NotChecked=0, Total=506 [2024-11-27 23:32:22,766 INFO L87 Difference]: Start difference. First operand 846 states and 1056 transitions. Second operand has 15 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:32:24,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:24,143 INFO L93 Difference]: Finished difference Result 897 states and 1117 transitions. [2024-11-27 23:32:24,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 23:32:24,144 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 186 [2024-11-27 23:32:24,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:24,147 INFO L225 Difference]: With dead ends: 897 [2024-11-27 23:32:24,148 INFO L226 Difference]: Without dead ends: 896 [2024-11-27 23:32:24,148 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=192, Invalid=510, Unknown=0, NotChecked=0, Total=702 [2024-11-27 23:32:24,149 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 95 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:24,149 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 90 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 23:32:24,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2024-11-27 23:32:24,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 735. [2024-11-27 23:32:24,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 735 states, 615 states have (on average 1.1203252032520326) internal successors, (689), 622 states have internal predecessors, (689), 111 states have call successors, (111), 1 states have call predecessors, (111), 1 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2024-11-27 23:32:24,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 911 transitions. [2024-11-27 23:32:24,416 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 911 transitions. Word has length 186 [2024-11-27 23:32:24,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:24,417 INFO L471 AbstractCegarLoop]: Abstraction has 735 states and 911 transitions. [2024-11-27 23:32:24,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:32:24,417 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 911 transitions. [2024-11-27 23:32:24,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-27 23:32:24,420 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:24,420 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1] [2024-11-27 23:32:24,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2024-11-27 23:32:24,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-11-27 23:32:24,624 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:32:24,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:24,625 INFO L85 PathProgramCache]: Analyzing trace with hash 614044517, now seen corresponding path program 2 times [2024-11-27 23:32:24,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:24,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789050847] [2024-11-27 23:32:24,625 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:32:24,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:24,649 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:32:24,649 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:32:25,192 INFO L134 CoverageAnalysis]: Checked inductivity of 978 backedges. 24 proven. 54 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2024-11-27 23:32:25,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:25,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789050847] [2024-11-27 23:32:25,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789050847] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:32:25,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4394068] [2024-11-27 23:32:25,193 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:32:25,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:25,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:32:25,195 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:32:25,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-11-27 23:32:25,284 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:32:25,284 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:32:25,289 INFO L256 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-27 23:32:25,292 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:32:27,089 INFO L134 CoverageAnalysis]: Checked inductivity of 978 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-27 23:32:27,089 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:32:38,876 INFO L134 CoverageAnalysis]: Checked inductivity of 978 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-27 23:32:38,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [4394068] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:32:38,877 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:32:38,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 20, 16] total 45 [2024-11-27 23:32:38,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400276718] [2024-11-27 23:32:38,877 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:32:38,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-11-27 23:32:38,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:38,879 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-11-27 23:32:38,880 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=562, Invalid=1508, Unknown=0, NotChecked=0, Total=2070 [2024-11-27 23:32:38,880 INFO L87 Difference]: Start difference. First operand 735 states and 911 transitions. Second operand has 46 states, 45 states have (on average 4.977777777777778) internal successors, (224), 46 states have internal predecessors, (224), 20 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 20 states have call predecessors, (54), 20 states have call successors, (54) [2024-11-27 23:33:08,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:33:08,595 INFO L93 Difference]: Finished difference Result 1723 states and 2153 transitions. [2024-11-27 23:33:08,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2024-11-27 23:33:08,596 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 4.977777777777778) internal successors, (224), 46 states have internal predecessors, (224), 20 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 20 states have call predecessors, (54), 20 states have call successors, (54) Word has length 186 [2024-11-27 23:33:08,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:33:08,601 INFO L225 Difference]: With dead ends: 1723 [2024-11-27 23:33:08,601 INFO L226 Difference]: Without dead ends: 1722 [2024-11-27 23:33:08,606 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 480 GetRequests, 333 SyntacticMatches, 4 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9338 ImplicationChecksByTransitivity, 26.0s TimeCoverageRelationStatistics Valid=5675, Invalid=15205, Unknown=0, NotChecked=0, Total=20880 [2024-11-27 23:33:08,607 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 1597 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 2606 mSolverCounterSat, 574 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1601 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 3180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 574 IncrementalHoareTripleChecker+Valid, 2606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:33:08,608 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1601 Valid, 604 Invalid, 3180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [574 Valid, 2606 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2024-11-27 23:33:08,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2024-11-27 23:33:08,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 946. [2024-11-27 23:33:08,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 946 states, 802 states have (on average 1.128428927680798) internal successors, (905), 809 states have internal predecessors, (905), 135 states have call successors, (135), 1 states have call predecessors, (135), 1 states have return successors, (135), 135 states have call predecessors, (135), 135 states have call successors, (135) [2024-11-27 23:33:08,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 1175 transitions. [2024-11-27 23:33:08,896 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 1175 transitions. Word has length 186 [2024-11-27 23:33:08,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:33:08,896 INFO L471 AbstractCegarLoop]: Abstraction has 946 states and 1175 transitions. [2024-11-27 23:33:08,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 4.977777777777778) internal successors, (224), 46 states have internal predecessors, (224), 20 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 20 states have call predecessors, (54), 20 states have call successors, (54) [2024-11-27 23:33:08,896 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 1175 transitions. [2024-11-27 23:33:08,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-27 23:33:08,898 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:33:08,898 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2024-11-27 23:33:08,909 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2024-11-27 23:33:09,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-11-27 23:33:09,099 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:33:09,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:09,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1296642793, now seen corresponding path program 7 times [2024-11-27 23:33:09,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:09,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000067916] [2024-11-27 23:33:09,100 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-27 23:33:09,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:09,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:33:09,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [824163170] [2024-11-27 23:33:09,152 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-27 23:33:09,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:09,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:33:09,158 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:33:09,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-11-27 23:33:09,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:09,262 INFO L256 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-27 23:33:09,266 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:33:11,347 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-27 23:33:11,347 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:33:12,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:33:12,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000067916] [2024-11-27 23:33:12,496 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:33:12,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [824163170] [2024-11-27 23:33:12,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [824163170] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:33:12,496 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:33:12,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2024-11-27 23:33:12,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27643583] [2024-11-27 23:33:12,496 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:33:12,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-27 23:33:12,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:33:12,497 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-27 23:33:12,498 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=688, Unknown=0, NotChecked=0, Total=812 [2024-11-27 23:33:12,498 INFO L87 Difference]: Start difference. First operand 946 states and 1175 transitions. Second operand has 24 states, 23 states have (on average 3.8260869565217392) internal successors, (88), 24 states have internal predecessors, (88), 8 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 8 states have call predecessors, (21), 8 states have call successors, (21) [2024-11-27 23:33:15,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:33:15,660 INFO L93 Difference]: Finished difference Result 999 states and 1240 transitions. [2024-11-27 23:33:15,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-27 23:33:15,661 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.8260869565217392) internal successors, (88), 24 states have internal predecessors, (88), 8 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 8 states have call predecessors, (21), 8 states have call successors, (21) Word has length 190 [2024-11-27 23:33:15,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:33:15,665 INFO L225 Difference]: With dead ends: 999 [2024-11-27 23:33:15,665 INFO L226 Difference]: Without dead ends: 998 [2024-11-27 23:33:15,666 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=146, Invalid=784, Unknown=0, NotChecked=0, Total=930 [2024-11-27 23:33:15,666 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 53 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 2701 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 2708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:33:15,667 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 604 Invalid, 2708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2701 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-27 23:33:15,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 998 states. [2024-11-27 23:33:15,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 998 to 946. [2024-11-27 23:33:15,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 946 states, 802 states have (on average 1.1271820448877805) internal successors, (904), 809 states have internal predecessors, (904), 135 states have call successors, (135), 1 states have call predecessors, (135), 1 states have return successors, (135), 135 states have call predecessors, (135), 135 states have call successors, (135) [2024-11-27 23:33:15,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 1174 transitions. [2024-11-27 23:33:15,922 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 1174 transitions. Word has length 190 [2024-11-27 23:33:15,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:33:15,922 INFO L471 AbstractCegarLoop]: Abstraction has 946 states and 1174 transitions. [2024-11-27 23:33:15,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.8260869565217392) internal successors, (88), 24 states have internal predecessors, (88), 8 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 8 states have call predecessors, (21), 8 states have call successors, (21) [2024-11-27 23:33:15,922 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 1174 transitions. [2024-11-27 23:33:15,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-11-27 23:33:15,924 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:33:15,924 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 1, 1, 1] [2024-11-27 23:33:15,934 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2024-11-27 23:33:16,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:16,128 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:33:16,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:16,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1354328432, now seen corresponding path program 2 times [2024-11-27 23:33:16,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:16,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80233459] [2024-11-27 23:33:16,129 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:33:16,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:16,145 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:33:16,146 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:33:16,401 INFO L134 CoverageAnalysis]: Checked inductivity of 1764 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-27 23:33:16,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:33:16,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80233459] [2024-11-27 23:33:16,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80233459] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:33:16,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220268736] [2024-11-27 23:33:16,402 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:33:16,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:16,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:33:16,404 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:33:16,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-11-27 23:33:16,485 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:33:16,485 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:33:16,488 INFO L256 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 23:33:16,491 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:33:16,730 INFO L134 CoverageAnalysis]: Checked inductivity of 1764 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-27 23:33:16,730 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:33:17,377 INFO L134 CoverageAnalysis]: Checked inductivity of 1764 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-27 23:33:17,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1220268736] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:33:17,377 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:33:17,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2024-11-27 23:33:17,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629344267] [2024-11-27 23:33:17,378 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:33:17,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-27 23:33:17,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:33:17,379 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-27 23:33:17,379 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-11-27 23:33:17,379 INFO L87 Difference]: Start difference. First operand 946 states and 1174 transitions. Second operand has 21 states, 20 states have (on average 7.0) internal successors, (140), 21 states have internal predecessors, (140), 19 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 19 states have call predecessors, (57), 19 states have call successors, (57) [2024-11-27 23:33:18,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:33:18,943 INFO L93 Difference]: Finished difference Result 2760 states and 3462 transitions. [2024-11-27 23:33:18,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-27 23:33:18,944 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 7.0) internal successors, (140), 21 states have internal predecessors, (140), 19 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 19 states have call predecessors, (57), 19 states have call successors, (57) Word has length 200 [2024-11-27 23:33:18,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:33:18,953 INFO L225 Difference]: With dead ends: 2760 [2024-11-27 23:33:18,954 INFO L226 Difference]: Without dead ends: 2759 [2024-11-27 23:33:18,955 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 389 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-11-27 23:33:18,955 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 893 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 929 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:33:18,956 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [929 Valid, 431 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 23:33:18,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2759 states. [2024-11-27 23:33:19,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2759 to 1028. [2024-11-27 23:33:19,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1028 states, 860 states have (on average 1.136046511627907) internal successors, (977), 867 states have internal predecessors, (977), 159 states have call successors, (159), 1 states have call predecessors, (159), 1 states have return successors, (159), 159 states have call predecessors, (159), 159 states have call successors, (159) [2024-11-27 23:33:19,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 1295 transitions. [2024-11-27 23:33:19,362 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 1295 transitions. Word has length 200 [2024-11-27 23:33:19,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:33:19,362 INFO L471 AbstractCegarLoop]: Abstraction has 1028 states and 1295 transitions. [2024-11-27 23:33:19,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 7.0) internal successors, (140), 21 states have internal predecessors, (140), 19 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 19 states have call predecessors, (57), 19 states have call successors, (57) [2024-11-27 23:33:19,363 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 1295 transitions. [2024-11-27 23:33:19,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-27 23:33:19,364 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:33:19,365 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:19,371 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2024-11-27 23:33:19,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:19,565 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:33:19,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:19,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1790255522, now seen corresponding path program 3 times [2024-11-27 23:33:19,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:19,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755030640] [2024-11-27 23:33:19,566 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:33:19,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:19,605 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2024-11-27 23:33:19,605 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:33:20,031 INFO L134 CoverageAnalysis]: Checked inductivity of 1165 backedges. 48 proven. 105 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-27 23:33:20,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:33:20,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755030640] [2024-11-27 23:33:20,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755030640] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:33:20,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1757739309] [2024-11-27 23:33:20,032 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:33:20,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:20,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:33:20,034 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:33:20,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-11-27 23:33:20,094 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-27 23:33:20,094 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:33:20,095 INFO L256 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 23:33:20,098 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:33:20,582 INFO L134 CoverageAnalysis]: Checked inductivity of 1165 backedges. 84 proven. 3 refuted. 0 times theorem prover too weak. 1078 trivial. 0 not checked. [2024-11-27 23:33:20,582 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:33:21,036 INFO L134 CoverageAnalysis]: Checked inductivity of 1165 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 1078 trivial. 0 not checked. [2024-11-27 23:33:21,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1757739309] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 23:33:21,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:33:21,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 7] total 19 [2024-11-27 23:33:21,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350760890] [2024-11-27 23:33:21,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:33:21,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:33:21,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:33:21,037 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:33:21,037 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2024-11-27 23:33:21,037 INFO L87 Difference]: Start difference. First operand 1028 states and 1295 transitions. Second operand has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:33:21,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:33:21,648 INFO L93 Difference]: Finished difference Result 1028 states and 1295 transitions. [2024-11-27 23:33:21,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:33:21,649 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 197 [2024-11-27 23:33:21,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:33:21,653 INFO L225 Difference]: With dead ends: 1028 [2024-11-27 23:33:21,653 INFO L226 Difference]: Without dead ends: 1027 [2024-11-27 23:33:21,654 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 407 GetRequests, 387 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=348, Unknown=0, NotChecked=0, Total=420 [2024-11-27 23:33:21,654 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 83 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:33:21,654 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 54 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 23:33:21,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2024-11-27 23:33:21,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 1027. [2024-11-27 23:33:21,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 860 states have (on average 1.1348837209302325) internal successors, (976), 866 states have internal predecessors, (976), 159 states have call successors, (159), 1 states have call predecessors, (159), 1 states have return successors, (159), 159 states have call predecessors, (159), 159 states have call successors, (159) [2024-11-27 23:33:21,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1294 transitions. [2024-11-27 23:33:21,913 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1294 transitions. Word has length 197 [2024-11-27 23:33:21,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:33:21,913 INFO L471 AbstractCegarLoop]: Abstraction has 1027 states and 1294 transitions. [2024-11-27 23:33:21,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:33:21,914 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1294 transitions. [2024-11-27 23:33:21,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-27 23:33:21,915 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:33:21,916 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:21,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2024-11-27 23:33:22,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-11-27 23:33:22,120 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:33:22,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:22,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1846325212, now seen corresponding path program 1 times [2024-11-27 23:33:22,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:22,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606732707] [2024-11-27 23:33:22,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:22,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:22,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:22,504 INFO L134 CoverageAnalysis]: Checked inductivity of 1165 backedges. 48 proven. 105 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-27 23:33:22,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:33:22,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606732707] [2024-11-27 23:33:22,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606732707] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:33:22,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [331036738] [2024-11-27 23:33:22,504 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:22,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:22,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:33:22,506 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:33:22,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-11-27 23:33:22,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:22,586 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-27 23:33:22,589 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:33:23,523 INFO L134 CoverageAnalysis]: Checked inductivity of 1165 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-27 23:33:23,523 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:33:23,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [331036738] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:33:23,675 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:33:23,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 19] total 24 [2024-11-27 23:33:23,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711230515] [2024-11-27 23:33:23,676 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:33:23,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-27 23:33:23,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:33:23,676 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-27 23:33:23,677 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=580, Unknown=0, NotChecked=0, Total=702 [2024-11-27 23:33:23,677 INFO L87 Difference]: Start difference. First operand 1027 states and 1294 transitions. Second operand has 24 states, 24 states have (on average 6.916666666666667) internal successors, (166), 24 states have internal predecessors, (166), 13 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 13 states have call predecessors, (46), 13 states have call successors, (46) [2024-11-27 23:33:25,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:33:25,728 INFO L93 Difference]: Finished difference Result 1186 states and 1482 transitions. [2024-11-27 23:33:25,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-27 23:33:25,728 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 6.916666666666667) internal successors, (166), 24 states have internal predecessors, (166), 13 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 13 states have call predecessors, (46), 13 states have call successors, (46) Word has length 199 [2024-11-27 23:33:25,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:33:25,732 INFO L225 Difference]: With dead ends: 1186 [2024-11-27 23:33:25,733 INFO L226 Difference]: Without dead ends: 1181 [2024-11-27 23:33:25,733 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 189 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=122, Invalid=580, Unknown=0, NotChecked=0, Total=702 [2024-11-27 23:33:25,734 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 73 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 1807 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 1810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:33:25,734 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 764 Invalid, 1810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1807 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-27 23:33:25,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1181 states. [2024-11-27 23:33:26,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1181 to 1135. [2024-11-27 23:33:26,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1135 states, 954 states have (on average 1.1278825995807127) internal successors, (1076), 960 states have internal predecessors, (1076), 173 states have call successors, (173), 1 states have call predecessors, (173), 1 states have return successors, (173), 173 states have call predecessors, (173), 173 states have call successors, (173) [2024-11-27 23:33:26,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1135 states to 1135 states and 1422 transitions. [2024-11-27 23:33:26,064 INFO L78 Accepts]: Start accepts. Automaton has 1135 states and 1422 transitions. Word has length 199 [2024-11-27 23:33:26,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:33:26,064 INFO L471 AbstractCegarLoop]: Abstraction has 1135 states and 1422 transitions. [2024-11-27 23:33:26,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 6.916666666666667) internal successors, (166), 24 states have internal predecessors, (166), 13 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 13 states have call predecessors, (46), 13 states have call successors, (46) [2024-11-27 23:33:26,065 INFO L276 IsEmpty]: Start isEmpty. Operand 1135 states and 1422 transitions. [2024-11-27 23:33:26,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-27 23:33:26,066 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:33:26,066 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:26,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2024-11-27 23:33:26,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:26,267 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:33:26,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:26,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1085649835, now seen corresponding path program 2 times [2024-11-27 23:33:26,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:26,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368735592] [2024-11-27 23:33:26,268 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:33:26,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:26,285 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:33:26,285 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:33:26,886 INFO L134 CoverageAnalysis]: Checked inductivity of 1092 backedges. 0 proven. 159 refuted. 0 times theorem prover too weak. 933 trivial. 0 not checked. [2024-11-27 23:33:26,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:33:26,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368735592] [2024-11-27 23:33:26,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368735592] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:33:26,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950467211] [2024-11-27 23:33:26,887 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:33:26,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:26,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:33:26,889 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:33:26,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-11-27 23:33:26,969 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:33:26,969 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:33:26,971 INFO L256 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-27 23:33:26,974 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:33:28,081 INFO L134 CoverageAnalysis]: Checked inductivity of 1092 backedges. 3 proven. 156 refuted. 0 times theorem prover too weak. 933 trivial. 0 not checked. [2024-11-27 23:33:28,081 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:33:29,424 INFO L134 CoverageAnalysis]: Checked inductivity of 1092 backedges. 83 proven. 76 refuted. 0 times theorem prover too weak. 933 trivial. 0 not checked. [2024-11-27 23:33:29,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1950467211] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:33:29,425 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:33:29,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 16, 12] total 32 [2024-11-27 23:33:29,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422762586] [2024-11-27 23:33:29,425 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:33:29,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-27 23:33:29,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:33:29,427 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-27 23:33:29,427 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=860, Unknown=0, NotChecked=0, Total=1056 [2024-11-27 23:33:29,428 INFO L87 Difference]: Start difference. First operand 1135 states and 1422 transitions. Second operand has 33 states, 32 states have (on average 6.78125) internal successors, (217), 33 states have internal predecessors, (217), 18 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 18 states have call predecessors, (53), 18 states have call successors, (53) [2024-11-27 23:33:32,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:33:32,731 INFO L93 Difference]: Finished difference Result 1340 states and 1674 transitions. [2024-11-27 23:33:32,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-27 23:33:32,732 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 6.78125) internal successors, (217), 33 states have internal predecessors, (217), 18 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 18 states have call predecessors, (53), 18 states have call successors, (53) Word has length 199 [2024-11-27 23:33:32,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:33:32,735 INFO L225 Difference]: With dead ends: 1340 [2024-11-27 23:33:32,735 INFO L226 Difference]: Without dead ends: 1333 [2024-11-27 23:33:32,736 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 376 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 826 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=520, Invalid=2450, Unknown=0, NotChecked=0, Total=2970 [2024-11-27 23:33:32,737 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 307 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 1455 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 905 SdHoareTripleChecker+Invalid, 1521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:33:32,737 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 905 Invalid, 1521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1455 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-27 23:33:32,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1333 states. [2024-11-27 23:33:33,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1333 to 1232. [2024-11-27 23:33:33,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1232 states, 1043 states have (on average 1.1313518696069031) internal successors, (1180), 1049 states have internal predecessors, (1180), 181 states have call successors, (181), 1 states have call predecessors, (181), 1 states have return successors, (181), 181 states have call predecessors, (181), 181 states have call successors, (181) [2024-11-27 23:33:33,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1232 states to 1232 states and 1542 transitions. [2024-11-27 23:33:33,081 INFO L78 Accepts]: Start accepts. Automaton has 1232 states and 1542 transitions. Word has length 199 [2024-11-27 23:33:33,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:33:33,081 INFO L471 AbstractCegarLoop]: Abstraction has 1232 states and 1542 transitions. [2024-11-27 23:33:33,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 6.78125) internal successors, (217), 33 states have internal predecessors, (217), 18 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 18 states have call predecessors, (53), 18 states have call successors, (53) [2024-11-27 23:33:33,081 INFO L276 IsEmpty]: Start isEmpty. Operand 1232 states and 1542 transitions. [2024-11-27 23:33:33,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-27 23:33:33,082 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:33:33,082 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:33,088 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2024-11-27 23:33:33,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:33,283 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:33:33,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:33,283 INFO L85 PathProgramCache]: Analyzing trace with hash -2087939471, now seen corresponding path program 3 times [2024-11-27 23:33:33,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:33,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713849703] [2024-11-27 23:33:33,283 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:33:33,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:33,311 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-27 23:33:33,311 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:33:34,088 INFO L134 CoverageAnalysis]: Checked inductivity of 1096 backedges. 22 proven. 150 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-27 23:33:34,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:33:34,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713849703] [2024-11-27 23:33:34,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713849703] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:33:34,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610548412] [2024-11-27 23:33:34,089 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:33:34,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:34,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:33:34,093 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:33:34,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-11-27 23:33:34,151 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-27 23:33:34,151 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:33:34,152 INFO L256 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-27 23:33:34,154 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:33:34,677 INFO L134 CoverageAnalysis]: Checked inductivity of 1096 backedges. 103 proven. 52 refuted. 0 times theorem prover too weak. 941 trivial. 0 not checked. [2024-11-27 23:33:34,677 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:33:35,002 INFO L134 CoverageAnalysis]: Checked inductivity of 1096 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 1013 trivial. 0 not checked. [2024-11-27 23:33:35,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1610548412] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 23:33:35,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:33:35,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [16, 8] total 26 [2024-11-27 23:33:35,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887731379] [2024-11-27 23:33:35,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:33:35,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:33:35,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:33:35,003 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:33:35,004 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=604, Unknown=0, NotChecked=0, Total=702 [2024-11-27 23:33:35,004 INFO L87 Difference]: Start difference. First operand 1232 states and 1542 transitions. Second operand has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:33:35,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:33:35,770 INFO L93 Difference]: Finished difference Result 1232 states and 1542 transitions. [2024-11-27 23:33:35,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:33:35,771 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 203 [2024-11-27 23:33:35,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:33:35,773 INFO L225 Difference]: With dead ends: 1232 [2024-11-27 23:33:35,773 INFO L226 Difference]: Without dead ends: 1227 [2024-11-27 23:33:35,773 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 395 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=108, Invalid=704, Unknown=0, NotChecked=0, Total=812 [2024-11-27 23:33:35,774 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 45 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:33:35,774 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 45 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 23:33:35,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1227 states. [2024-11-27 23:33:36,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1227 to 936. [2024-11-27 23:33:36,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 936 states, 788 states have (on average 1.114213197969543) internal successors, (878), 793 states have internal predecessors, (878), 141 states have call successors, (141), 1 states have call predecessors, (141), 1 states have return successors, (141), 141 states have call predecessors, (141), 141 states have call successors, (141) [2024-11-27 23:33:36,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1160 transitions. [2024-11-27 23:33:36,120 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1160 transitions. Word has length 203 [2024-11-27 23:33:36,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:33:36,120 INFO L471 AbstractCegarLoop]: Abstraction has 936 states and 1160 transitions. [2024-11-27 23:33:36,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:33:36,120 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1160 transitions. [2024-11-27 23:33:36,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-27 23:33:36,121 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:33:36,121 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 5, 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, 3, 3, 3, 1, 1, 1, 1] [2024-11-27 23:33:36,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2024-11-27 23:33:36,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:36,322 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:33:36,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:36,322 INFO L85 PathProgramCache]: Analyzing trace with hash -310599564, now seen corresponding path program 2 times [2024-11-27 23:33:36,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:36,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955689651] [2024-11-27 23:33:36,323 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:33:36,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:36,342 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:33:36,342 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:33:37,129 INFO L134 CoverageAnalysis]: Checked inductivity of 1198 backedges. 0 proven. 186 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-27 23:33:37,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:33:37,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955689651] [2024-11-27 23:33:37,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955689651] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:33:37,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [857717502] [2024-11-27 23:33:37,129 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:33:37,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:37,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:33:37,134 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:33:37,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2024-11-27 23:33:37,217 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:33:37,217 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:33:37,219 INFO L256 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-27 23:33:37,222 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:33:38,958 INFO L134 CoverageAnalysis]: Checked inductivity of 1198 backedges. 0 proven. 186 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-27 23:33:38,958 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:33:53,266 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse8 (div |c_ULTIMATE.start_main_~d~0#1| 4)) (.cse1 (div |c_ULTIMATE.start_main_~d~0#1| 2))) (let ((.cse0 (div (+ (- 1) .cse1) 2)) (.cse7 (div (+ |c_ULTIMATE.start_main_~r~0#1| (- 2147483651)) 3)) (.cse3 (+ .cse8 1)) (.cse6 (* (- 1) |c_ULTIMATE.start_main_~d~0#1|)) (.cse2 (mod |c_ULTIMATE.start_main_~d~0#1| 2)) (.cse4 (* 2 |c_ULTIMATE.start_main_~r~0#1|)) (.cse9 (* .cse8 2)) (.cse5 (* (div (+ (- 2147483648) |c_ULTIMATE.start_main_~r~0#1|) 15) 8))) (and (forall ((|v_ULTIMATE.start_main_~r~0#1_98| Int)) (or (< (* (div (+ (* 2 |v_ULTIMATE.start_main_~r~0#1_98|) (- 4294967297)) 7) 2) (+ 2 .cse0)) (< |c_ULTIMATE.start_main_~r~0#1| (+ .cse1 |v_ULTIMATE.start_main_~r~0#1_98| 1)))) (or (not (= .cse2 0)) (and (forall ((|v_ULTIMATE.start_main_~r~0#1_98| Int)) (or (< (* (div (+ (* 2 |v_ULTIMATE.start_main_~r~0#1_98|) (- 4294967297)) 7) 2) .cse3) (< |c_ULTIMATE.start_main_~r~0#1| (+ .cse1 |v_ULTIMATE.start_main_~r~0#1_98|)))) (<= |c_ULTIMATE.start_main_~r~0#1| (+ .cse1 2147483654 (* 7 (div |c_ULTIMATE.start_main_~d~0#1| 16)))) (<= .cse4 (+ 4294967308 (* 3 (div (+ (- 1) .cse0) 2)) (* 6 .cse0))) (<= (+ .cse5 1) .cse1) (<= (+ 2 (* (div (+ .cse6 (- 4294967302) .cse4) 7) 4)) .cse1) (<= (+ 7 (* .cse7 8) (* (div (* (- 1) .cse1) 2) 8)) .cse1) (forall ((|v_ULTIMATE.start_main_~r~0#1_98| Int)) (or (< (+ (mod (+ .cse1 1) 2) |c_ULTIMATE.start_main_~r~0#1|) (+ .cse1 |v_ULTIMATE.start_main_~r~0#1_98| 1)) (< (* (div (+ (* 2 |v_ULTIMATE.start_main_~r~0#1_98|) (- 4294967297)) 7) 2) (+ .cse0 1)))) (<= (+ (* 8 (div (+ (- 4294967303) (* .cse1 (- 3)) .cse4) 6)) 6) .cse1))) (<= (+ (* (div (+ (- 4294967306) .cse4) 3) 2) 1) (* 5 .cse8)) (<= .cse4 (+ (* (div (+ .cse1 (- 5)) 8) 6) (* .cse1 3) 4294967311)) (<= (* 2 .cse7) (+ .cse1 (* 2 (div (+ .cse1 (- 6)) 8)) 2)) (forall ((|v_ULTIMATE.start_main_~r~0#1_98| Int)) (or (< (* (div (+ (* 2 |v_ULTIMATE.start_main_~r~0#1_98|) (- 4294967297)) 7) 2) .cse3) (< |c_ULTIMATE.start_main_~r~0#1| (+ .cse9 2 |v_ULTIMATE.start_main_~r~0#1_98|)))) (<= (+ (* (div (+ .cse2 (- 4294967304) .cse6 .cse4) 7) 4) 1) .cse1) (or (and (<= (+ (* (div (+ .cse2 (- 4294967307) .cse6 .cse4) 7) 4) 4) .cse1) (or (< (+ (* (div (+ (- 4294967302) .cse4) 15) 4) 1) .cse1) (< (+ (* (div (+ .cse2 .cse6 (- 4294967302) .cse4) 7) 4) 1) .cse1)) (<= (+ .cse2 .cse4) (+ (* (div |c_ULTIMATE.start_main_~d~0#1| 8) 3) .cse9 |c_ULTIMATE.start_main_~d~0#1| 4294967294))) (< |c_ULTIMATE.start_main_~d~0#1| 0)) (<= |c_ULTIMATE.start_main_~r~0#1| (+ .cse1 (* 7 (div (+ .cse1 (- 7)) 8)) 2147483662)) (<= .cse5 .cse1)))) is different from false [2024-11-27 23:33:59,870 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse8 (div |c_ULTIMATE.start_main_~d~0#1| 4)) (.cse1 (div |c_ULTIMATE.start_main_~d~0#1| 2))) (let ((.cse0 (div (+ (- 1) .cse1) 2)) (.cse7 (div (+ |c_ULTIMATE.start_main_~r~0#1| (- 2147483651)) 3)) (.cse3 (+ .cse8 1)) (.cse9 (* .cse8 2)) (.cse2 (mod |c_ULTIMATE.start_main_~d~0#1| 2)) (.cse6 (* (- 1) |c_ULTIMATE.start_main_~d~0#1|)) (.cse4 (* 2 |c_ULTIMATE.start_main_~r~0#1|)) (.cse5 (* (div (+ (- 2147483648) |c_ULTIMATE.start_main_~r~0#1|) 15) 8))) (and (forall ((|v_ULTIMATE.start_main_~r~0#1_98| Int)) (or (< (* (div (+ (* 2 |v_ULTIMATE.start_main_~r~0#1_98|) (- 4294967297)) 7) 2) (+ 2 .cse0)) (< |c_ULTIMATE.start_main_~r~0#1| (+ .cse1 |v_ULTIMATE.start_main_~r~0#1_98| 1)))) (or (not (= .cse2 0)) (and (forall ((|v_ULTIMATE.start_main_~r~0#1_98| Int)) (or (< (* (div (+ (* 2 |v_ULTIMATE.start_main_~r~0#1_98|) (- 4294967297)) 7) 2) .cse3) (< |c_ULTIMATE.start_main_~r~0#1| (+ .cse1 |v_ULTIMATE.start_main_~r~0#1_98|)))) (<= |c_ULTIMATE.start_main_~r~0#1| (+ .cse1 2147483654 (* 7 (div |c_ULTIMATE.start_main_~d~0#1| 16)))) (<= .cse4 (+ 4294967308 (* 3 (div (+ (- 1) .cse0) 2)) (* 6 .cse0))) (<= (+ .cse5 1) .cse1) (<= (+ 2 (* (div (+ .cse6 (- 4294967302) .cse4) 7) 4)) .cse1) (<= (+ 7 (* .cse7 8) (* (div (* (- 1) .cse1) 2) 8)) .cse1) (forall ((|v_ULTIMATE.start_main_~r~0#1_98| Int)) (or (< (+ (mod (+ .cse1 1) 2) |c_ULTIMATE.start_main_~r~0#1|) (+ .cse1 |v_ULTIMATE.start_main_~r~0#1_98| 1)) (< (* (div (+ (* 2 |v_ULTIMATE.start_main_~r~0#1_98|) (- 4294967297)) 7) 2) (+ .cse0 1)))) (<= (+ (* 8 (div (+ (- 4294967303) (* .cse1 (- 3)) .cse4) 6)) 6) .cse1))) (<= (+ (* (div (+ (- 4294967306) .cse4) 3) 2) 1) (* 5 .cse8)) (<= .cse4 (+ (* (div (+ .cse1 (- 5)) 8) 6) (* .cse1 3) 4294967311)) (<= (* 2 .cse7) (+ .cse1 (* 2 (div (+ .cse1 (- 6)) 8)) 2)) (or (< (+ .cse2 .cse4) (+ (* (div |c_ULTIMATE.start_main_~d~0#1| 8) 3) .cse9 4294967295 |c_ULTIMATE.start_main_~d~0#1|)) (< |c_ULTIMATE.start_main_~d~0#1| 0)) (forall ((|v_ULTIMATE.start_main_~r~0#1_98| Int)) (or (< (* (div (+ (* 2 |v_ULTIMATE.start_main_~r~0#1_98|) (- 4294967297)) 7) 2) .cse3) (< |c_ULTIMATE.start_main_~r~0#1| (+ .cse9 2 |v_ULTIMATE.start_main_~r~0#1_98|)))) (<= (+ (* (div (+ .cse2 (- 4294967304) .cse6 .cse4) 7) 4) 1) .cse1) (<= |c_ULTIMATE.start_main_~r~0#1| (+ .cse1 (* 7 (div (+ .cse1 (- 7)) 8)) 2147483662)) (<= .cse5 .cse1)))) is different from false [2024-11-27 23:34:01,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [857717502] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:34:01,121 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:34:01,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 20] total 37 [2024-11-27 23:34:01,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018277618] [2024-11-27 23:34:01,122 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:34:01,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-27 23:34:01,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:34:01,123 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-27 23:34:01,123 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=284, Invalid=1702, Unknown=2, NotChecked=174, Total=2162 [2024-11-27 23:34:01,123 INFO L87 Difference]: Start difference. First operand 936 states and 1160 transitions. Second operand has 38 states, 37 states have (on average 5.1891891891891895) internal successors, (192), 38 states have internal predecessors, (192), 17 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 17 states have call predecessors, (46), 17 states have call successors, (46) [2024-11-27 23:34:05,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:05,171 INFO L93 Difference]: Finished difference Result 1437 states and 1760 transitions. [2024-11-27 23:34:05,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-11-27 23:34:05,172 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 5.1891891891891895) internal successors, (192), 38 states have internal predecessors, (192), 17 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 17 states have call predecessors, (46), 17 states have call successors, (46) Word has length 210 [2024-11-27 23:34:05,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:05,174 INFO L225 Difference]: With dead ends: 1437 [2024-11-27 23:34:05,174 INFO L226 Difference]: Without dead ends: 1436 [2024-11-27 23:34:05,175 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 941 ImplicationChecksByTransitivity, 11.6s TimeCoverageRelationStatistics Valid=858, Invalid=3704, Unknown=2, NotChecked=266, Total=4830 [2024-11-27 23:34:05,175 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 976 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 2432 mSolverCounterSat, 273 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 980 SdHoareTripleChecker+Valid, 922 SdHoareTripleChecker+Invalid, 2705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 273 IncrementalHoareTripleChecker+Valid, 2432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:05,176 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [980 Valid, 922 Invalid, 2705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [273 Valid, 2432 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-27 23:34:05,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1436 states. [2024-11-27 23:34:05,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1436 to 1244. [2024-11-27 23:34:05,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1244 states, 1060 states have (on average 1.1113207547169812) internal successors, (1178), 1065 states have internal predecessors, (1178), 177 states have call successors, (177), 1 states have call predecessors, (177), 1 states have return successors, (177), 177 states have call predecessors, (177), 177 states have call successors, (177) [2024-11-27 23:34:05,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1244 states to 1244 states and 1532 transitions. [2024-11-27 23:34:05,548 INFO L78 Accepts]: Start accepts. Automaton has 1244 states and 1532 transitions. Word has length 210 [2024-11-27 23:34:05,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:05,548 INFO L471 AbstractCegarLoop]: Abstraction has 1244 states and 1532 transitions. [2024-11-27 23:34:05,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 5.1891891891891895) internal successors, (192), 38 states have internal predecessors, (192), 17 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 17 states have call predecessors, (46), 17 states have call successors, (46) [2024-11-27 23:34:05,548 INFO L276 IsEmpty]: Start isEmpty. Operand 1244 states and 1532 transitions. [2024-11-27 23:34:05,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-11-27 23:34:05,550 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:05,550 INFO L218 NwaCegarLoop]: trace histogram [24, 24, 24, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2024-11-27 23:34:05,556 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2024-11-27 23:34:05,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2024-11-27 23:34:05,751 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:34:05,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:05,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1518052263, now seen corresponding path program 8 times [2024-11-27 23:34:05,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:34:05,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615066037] [2024-11-27 23:34:05,752 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:34:05,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:34:05,776 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:34:05,776 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 23:34:05,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [103334343] [2024-11-27 23:34:05,778 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:34:05,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:34:05,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:34:05,781 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:34:05,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-11-27 23:34:05,870 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:34:05,870 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:34:05,872 INFO L256 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-27 23:34:05,875 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:34:07,905 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-11-27 23:34:07,905 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:34:13,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:34:13,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615066037] [2024-11-27 23:34:13,031 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:34:13,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103334343] [2024-11-27 23:34:13,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [103334343] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:34:13,031 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:34:13,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2024-11-27 23:34:13,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418238725] [2024-11-27 23:34:13,032 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:34:13,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-27 23:34:13,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:34:13,033 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-27 23:34:13,033 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=801, Unknown=1, NotChecked=0, Total=930 [2024-11-27 23:34:13,033 INFO L87 Difference]: Start difference. First operand 1244 states and 1532 transitions. Second operand has 26 states, 25 states have (on average 3.8) internal successors, (95), 26 states have internal predecessors, (95), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) [2024-11-27 23:34:16,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:16,056 INFO L93 Difference]: Finished difference Result 1385 states and 1698 transitions. [2024-11-27 23:34:16,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-27 23:34:16,056 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.8) internal successors, (95), 26 states have internal predecessors, (95), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) Word has length 212 [2024-11-27 23:34:16,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:16,060 INFO L225 Difference]: With dead ends: 1385 [2024-11-27 23:34:16,060 INFO L226 Difference]: Without dead ends: 1384 [2024-11-27 23:34:16,061 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=162, Invalid=959, Unknown=1, NotChecked=0, Total=1122 [2024-11-27 23:34:16,061 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 74 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 2881 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 2898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 2881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:16,061 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 684 Invalid, 2898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 2881 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-27 23:34:16,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1384 states. [2024-11-27 23:34:16,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1384 to 1302. [2024-11-27 23:34:16,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1302 states, 1112 states have (on average 1.1079136690647482) internal successors, (1232), 1117 states have internal predecessors, (1232), 183 states have call successors, (183), 1 states have call predecessors, (183), 1 states have return successors, (183), 183 states have call predecessors, (183), 183 states have call successors, (183) [2024-11-27 23:34:16,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1302 states to 1302 states and 1598 transitions. [2024-11-27 23:34:16,409 INFO L78 Accepts]: Start accepts. Automaton has 1302 states and 1598 transitions. Word has length 212 [2024-11-27 23:34:16,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:16,410 INFO L471 AbstractCegarLoop]: Abstraction has 1302 states and 1598 transitions. [2024-11-27 23:34:16,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.8) internal successors, (95), 26 states have internal predecessors, (95), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) [2024-11-27 23:34:16,410 INFO L276 IsEmpty]: Start isEmpty. Operand 1302 states and 1598 transitions. [2024-11-27 23:34:16,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-11-27 23:34:16,411 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:16,411 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2024-11-27 23:34:16,419 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2024-11-27 23:34:16,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:34:16,612 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:34:16,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:16,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1921196992, now seen corresponding path program 4 times [2024-11-27 23:34:16,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:34:16,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355536842] [2024-11-27 23:34:16,613 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 23:34:16,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:34:16,655 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 23:34:16,655 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:34:17,556 INFO L134 CoverageAnalysis]: Checked inductivity of 1208 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-27 23:34:17,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:34:17,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355536842] [2024-11-27 23:34:17,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355536842] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:34:17,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1030282238] [2024-11-27 23:34:17,557 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 23:34:17,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:34:17,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:34:17,559 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:34:17,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2024-11-27 23:34:17,666 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 23:34:17,666 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:34:17,668 INFO L256 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-27 23:34:17,671 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:34:21,273 INFO L134 CoverageAnalysis]: Checked inductivity of 1208 backedges. 131 proven. 191 refuted. 0 times theorem prover too weak. 886 trivial. 0 not checked. [2024-11-27 23:34:21,273 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:34:22,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1030282238] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:34:22,456 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:34:22,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 21] total 35 [2024-11-27 23:34:22,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716766825] [2024-11-27 23:34:22,456 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:34:22,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-27 23:34:22,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:34:22,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-27 23:34:22,458 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=1425, Unknown=0, NotChecked=0, Total=1560 [2024-11-27 23:34:22,458 INFO L87 Difference]: Start difference. First operand 1302 states and 1598 transitions. Second operand has 36 states, 35 states have (on average 5.685714285714286) internal successors, (199), 36 states have internal predecessors, (199), 18 states have call successors, (46), 1 states have call predecessors, (46), 2 states have return successors, (46), 16 states have call predecessors, (46), 18 states have call successors, (46) [2024-11-27 23:34:32,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:32,897 INFO L93 Difference]: Finished difference Result 1871 states and 2274 transitions. [2024-11-27 23:34:32,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2024-11-27 23:34:32,897 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 5.685714285714286) internal successors, (199), 36 states have internal predecessors, (199), 18 states have call successors, (46), 1 states have call predecessors, (46), 2 states have return successors, (46), 16 states have call predecessors, (46), 18 states have call successors, (46) Word has length 212 [2024-11-27 23:34:32,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:32,900 INFO L225 Difference]: With dead ends: 1871 [2024-11-27 23:34:32,900 INFO L226 Difference]: Without dead ends: 1414 [2024-11-27 23:34:32,903 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 205 SyntacticMatches, 1 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3018 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=1200, Invalid=10572, Unknown=0, NotChecked=0, Total=11772 [2024-11-27 23:34:32,903 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 556 mSDsluCounter, 1371 mSDsCounter, 0 mSdLazyCounter, 5153 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 1446 SdHoareTripleChecker+Invalid, 5337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 5153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:32,903 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [561 Valid, 1446 Invalid, 5337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 5153 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-11-27 23:34:32,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1414 states. [2024-11-27 23:34:33,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1414 to 1342. [2024-11-27 23:34:33,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1342 states, 1148 states have (on average 1.103658536585366) internal successors, (1267), 1153 states have internal predecessors, (1267), 187 states have call successors, (187), 1 states have call predecessors, (187), 1 states have return successors, (187), 187 states have call predecessors, (187), 187 states have call successors, (187) [2024-11-27 23:34:33,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 1641 transitions. [2024-11-27 23:34:33,260 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 1641 transitions. Word has length 212 [2024-11-27 23:34:33,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:33,260 INFO L471 AbstractCegarLoop]: Abstraction has 1342 states and 1641 transitions. [2024-11-27 23:34:33,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 5.685714285714286) internal successors, (199), 36 states have internal predecessors, (199), 18 states have call successors, (46), 1 states have call predecessors, (46), 2 states have return successors, (46), 16 states have call predecessors, (46), 18 states have call successors, (46) [2024-11-27 23:34:33,260 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 1641 transitions. [2024-11-27 23:34:33,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-27 23:34:33,262 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:33,262 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 5, 5, 5, 5, 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, 1, 1, 1, 1] [2024-11-27 23:34:33,271 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2024-11-27 23:34:33,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2024-11-27 23:34:33,462 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:34:33,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:33,463 INFO L85 PathProgramCache]: Analyzing trace with hash 2026696634, now seen corresponding path program 9 times [2024-11-27 23:34:33,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:34:33,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163644290] [2024-11-27 23:34:33,463 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:34:33,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:34:33,522 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2024-11-27 23:34:33,523 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:34:34,685 INFO L134 CoverageAnalysis]: Checked inductivity of 1220 backedges. 0 proven. 208 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-27 23:34:34,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:34:34,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163644290] [2024-11-27 23:34:34,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163644290] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:34:34,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782705638] [2024-11-27 23:34:34,686 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:34:34,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:34:34,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:34:34,687 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:34:34,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2024-11-27 23:34:34,745 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-27 23:34:34,745 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:34:34,746 INFO L256 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-27 23:34:34,747 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:34:35,575 INFO L134 CoverageAnalysis]: Checked inductivity of 1220 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 1096 trivial. 0 not checked. [2024-11-27 23:34:35,575 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:34:35,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [782705638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:34:35,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:34:35,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [19] total 27 [2024-11-27 23:34:35,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723509672] [2024-11-27 23:34:35,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:34:35,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 23:34:35,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:34:35,576 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 23:34:35,576 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2024-11-27 23:34:35,576 INFO L87 Difference]: Start difference. First operand 1342 states and 1641 transitions. Second operand has 10 states, 9 states have (on average 5.444444444444445) internal successors, (49), 10 states have internal predecessors, (49), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:34:36,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:36,374 INFO L93 Difference]: Finished difference Result 1344 states and 1643 transitions. [2024-11-27 23:34:36,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 23:34:36,375 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.444444444444445) internal successors, (49), 10 states have internal predecessors, (49), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 216 [2024-11-27 23:34:36,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:36,379 INFO L225 Difference]: With dead ends: 1344 [2024-11-27 23:34:36,379 INFO L226 Difference]: Without dead ends: 1343 [2024-11-27 23:34:36,379 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 208 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=91, Invalid=839, Unknown=0, NotChecked=0, Total=930 [2024-11-27 23:34:36,380 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 48 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:36,380 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 30 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 23:34:36,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1343 states. [2024-11-27 23:34:36,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1343 to 1135. [2024-11-27 23:34:36,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1135 states, 964 states have (on average 1.0985477178423237) internal successors, (1059), 968 states have internal predecessors, (1059), 165 states have call successors, (165), 1 states have call predecessors, (165), 1 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-27 23:34:36,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1135 states to 1135 states and 1389 transitions. [2024-11-27 23:34:36,776 INFO L78 Accepts]: Start accepts. Automaton has 1135 states and 1389 transitions. Word has length 216 [2024-11-27 23:34:36,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:36,777 INFO L471 AbstractCegarLoop]: Abstraction has 1135 states and 1389 transitions. [2024-11-27 23:34:36,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.444444444444445) internal successors, (49), 10 states have internal predecessors, (49), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:34:36,777 INFO L276 IsEmpty]: Start isEmpty. Operand 1135 states and 1389 transitions. [2024-11-27 23:34:36,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-11-27 23:34:36,778 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:36,778 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-27 23:34:36,786 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2024-11-27 23:34:36,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:34:36,979 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:34:36,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:36,979 INFO L85 PathProgramCache]: Analyzing trace with hash 629623552, now seen corresponding path program 2 times [2024-11-27 23:34:36,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:34:36,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212405836] [2024-11-27 23:34:36,979 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:34:36,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:34:36,999 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:34:37,000 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:34:37,792 INFO L134 CoverageAnalysis]: Checked inductivity of 1518 backedges. 0 proven. 218 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-27 23:34:37,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:34:37,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212405836] [2024-11-27 23:34:37,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212405836] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:34:37,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560724591] [2024-11-27 23:34:37,793 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:34:37,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:34:37,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:34:37,794 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:34:37,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2024-11-27 23:34:37,901 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:34:37,901 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:34:37,903 INFO L256 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-27 23:34:37,907 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:34:40,452 INFO L134 CoverageAnalysis]: Checked inductivity of 1518 backedges. 0 proven. 218 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-27 23:34:40,453 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:35:07,472 INFO L134 CoverageAnalysis]: Checked inductivity of 1518 backedges. 0 proven. 218 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-27 23:35:07,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [560724591] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:35:07,472 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:35:07,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 25, 24] total 63 [2024-11-27 23:35:07,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593360034] [2024-11-27 23:35:07,472 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:35:07,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2024-11-27 23:35:07,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:35:07,473 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2024-11-27 23:35:07,474 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1155, Invalid=2877, Unknown=0, NotChecked=0, Total=4032 [2024-11-27 23:35:07,474 INFO L87 Difference]: Start difference. First operand 1135 states and 1389 transitions. Second operand has 64 states, 63 states have (on average 4.587301587301587) internal successors, (289), 64 states have internal predecessors, (289), 27 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 27 states have call predecessors, (78), 27 states have call successors, (78) [2024-11-27 23:36:27,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:36:27,821 INFO L93 Difference]: Finished difference Result 1570 states and 1912 transitions. [2024-11-27 23:36:27,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2024-11-27 23:36:27,822 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 4.587301587301587) internal successors, (289), 64 states have internal predecessors, (289), 27 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 27 states have call predecessors, (78), 27 states have call successors, (78) Word has length 226 [2024-11-27 23:36:27,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:36:27,825 INFO L225 Difference]: With dead ends: 1570 [2024-11-27 23:36:27,825 INFO L226 Difference]: Without dead ends: 1569 [2024-11-27 23:36:27,828 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 546 GetRequests, 403 SyntacticMatches, 1 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7879 ImplicationChecksByTransitivity, 74.8s TimeCoverageRelationStatistics Valid=6155, Invalid=14437, Unknown=0, NotChecked=0, Total=20592 [2024-11-27 23:36:27,829 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 1225 mSDsluCounter, 914 mSDsCounter, 0 mSdLazyCounter, 4803 mSolverCounterSat, 563 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1229 SdHoareTripleChecker+Valid, 988 SdHoareTripleChecker+Invalid, 5366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 563 IncrementalHoareTripleChecker+Valid, 4803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:36:27,829 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1229 Valid, 988 Invalid, 5366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [563 Valid, 4803 Invalid, 0 Unknown, 0 Unchecked, 11.6s Time] [2024-11-27 23:36:27,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1569 states. [2024-11-27 23:36:28,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1569 to 1447. [2024-11-27 23:36:28,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1447 states, 1236 states have (on average 1.0946601941747574) internal successors, (1353), 1240 states have internal predecessors, (1353), 205 states have call successors, (205), 1 states have call predecessors, (205), 1 states have return successors, (205), 205 states have call predecessors, (205), 205 states have call successors, (205) [2024-11-27 23:36:28,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1447 states to 1447 states and 1763 transitions. [2024-11-27 23:36:28,359 INFO L78 Accepts]: Start accepts. Automaton has 1447 states and 1763 transitions. Word has length 226 [2024-11-27 23:36:28,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:36:28,359 INFO L471 AbstractCegarLoop]: Abstraction has 1447 states and 1763 transitions. [2024-11-27 23:36:28,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 63 states have (on average 4.587301587301587) internal successors, (289), 64 states have internal predecessors, (289), 27 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 27 states have call predecessors, (78), 27 states have call successors, (78) [2024-11-27 23:36:28,360 INFO L276 IsEmpty]: Start isEmpty. Operand 1447 states and 1763 transitions. [2024-11-27 23:36:28,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-11-27 23:36:28,361 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:36:28,361 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2024-11-27 23:36:28,375 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2024-11-27 23:36:28,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2024-11-27 23:36:28,562 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:36:28,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:36:28,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1061651078, now seen corresponding path program 3 times [2024-11-27 23:36:28,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:36:28,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489696022] [2024-11-27 23:36:28,562 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:36:28,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:36:28,586 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-11-27 23:36:28,586 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:36:29,101 INFO L134 CoverageAnalysis]: Checked inductivity of 1526 backedges. 32 proven. 94 refuted. 0 times theorem prover too weak. 1400 trivial. 0 not checked. [2024-11-27 23:36:29,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:36:29,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489696022] [2024-11-27 23:36:29,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489696022] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:36:29,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191042986] [2024-11-27 23:36:29,101 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:36:29,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:36:29,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:36:29,103 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:36:29,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2024-11-27 23:36:29,157 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-27 23:36:29,157 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:36:29,158 INFO L256 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-27 23:36:29,160 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:36:29,884 INFO L134 CoverageAnalysis]: Checked inductivity of 1526 backedges. 103 proven. 26 refuted. 0 times theorem prover too weak. 1397 trivial. 0 not checked. [2024-11-27 23:36:29,884 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:36:37,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [191042986] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:36:37,884 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:36:37,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 24 [2024-11-27 23:36:37,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893404181] [2024-11-27 23:36:37,884 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:36:37,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-27 23:36:37,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:36:37,885 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-27 23:36:37,885 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=1001, Unknown=0, NotChecked=0, Total=1190 [2024-11-27 23:36:37,885 INFO L87 Difference]: Start difference. First operand 1447 states and 1763 transitions. Second operand has 25 states, 24 states have (on average 5.25) internal successors, (126), 24 states have internal predecessors, (126), 7 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 8 states have call predecessors, (21), 7 states have call successors, (21) [2024-11-27 23:36:41,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:36:41,289 INFO L93 Difference]: Finished difference Result 1668 states and 2023 transitions. [2024-11-27 23:36:41,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-11-27 23:36:41,289 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 5.25) internal successors, (126), 24 states have internal predecessors, (126), 7 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 8 states have call predecessors, (21), 7 states have call successors, (21) Word has length 230 [2024-11-27 23:36:41,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:36:41,292 INFO L225 Difference]: With dead ends: 1668 [2024-11-27 23:36:41,292 INFO L226 Difference]: Without dead ends: 1667 [2024-11-27 23:36:41,293 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 244 SyntacticMatches, 1 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1571 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=1259, Invalid=4747, Unknown=0, NotChecked=0, Total=6006 [2024-11-27 23:36:41,293 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 214 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 1090 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 1138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1090 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:36:41,293 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 227 Invalid, 1138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1090 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-27 23:36:41,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1667 states. [2024-11-27 23:36:41,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1667 to 560. [2024-11-27 23:36:41,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 456 states have (on average 1.1096491228070176) internal successors, (506), 459 states have internal predecessors, (506), 99 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-27 23:36:41,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 704 transitions. [2024-11-27 23:36:41,594 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 704 transitions. Word has length 230 [2024-11-27 23:36:41,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:36:41,594 INFO L471 AbstractCegarLoop]: Abstraction has 560 states and 704 transitions. [2024-11-27 23:36:41,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 5.25) internal successors, (126), 24 states have internal predecessors, (126), 7 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 8 states have call predecessors, (21), 7 states have call successors, (21) [2024-11-27 23:36:41,594 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 704 transitions. [2024-11-27 23:36:41,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-11-27 23:36:41,595 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:36:41,595 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1] [2024-11-27 23:36:41,603 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2024-11-27 23:36:41,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2024-11-27 23:36:41,796 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 23:36:41,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:36:41,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1298315726, now seen corresponding path program 3 times [2024-11-27 23:36:41,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:36:41,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949616384] [2024-11-27 23:36:41,797 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:36:41,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:36:41,842 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-27 23:36:41,842 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:36:43,724 INFO L134 CoverageAnalysis]: Checked inductivity of 1532 backedges. 104 proven. 102 refuted. 0 times theorem prover too weak. 1326 trivial. 0 not checked. [2024-11-27 23:36:43,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:36:43,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949616384] [2024-11-27 23:36:43,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949616384] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:36:43,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279545803] [2024-11-27 23:36:43,725 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:36:43,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:36:43,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:36:43,728 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:36:43,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b1ce2f4-7d2a-4ea9-9834-cc2b124fd7d1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2024-11-27 23:36:43,874 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-27 23:36:43,874 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:36:43,876 INFO L256 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-27 23:36:43,880 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:42:28,271 WARN L286 SmtUtils]: Spent 15.86s on a formula simplification. DAG size of input: 939 DAG size of output: 934 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)