./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound1.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_0662b72c-9a78-415c-b968-abb8789b0b89/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0662b72c-9a78-415c-b968-abb8789b0b89/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_0662b72c-9a78-415c-b968-abb8789b0b89/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0662b72c-9a78-415c-b968-abb8789b0b89/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0662b72c-9a78-415c-b968-abb8789b0b89/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_0662b72c-9a78-415c-b968-abb8789b0b89/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 eeab39c4b0b140806b3ddcf9e96fb8e36f66c5baac57da41aaf4e88167e6b080 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 19:55:09,598 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 19:55:09,696 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0662b72c-9a78-415c-b968-abb8789b0b89/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-27 19:55:09,704 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 19:55:09,705 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 19:55:09,747 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 19:55:09,748 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 19:55:09,748 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 19:55:09,748 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 19:55:09,748 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 19:55:09,748 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 19:55:09,748 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 19:55:09,749 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 19:55:09,750 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 19:55:09,751 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 19:55:09,751 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 19:55:09,751 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 19:55:09,751 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 19:55:09,752 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 19:55:09,752 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 19:55:09,752 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 19:55:09,752 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 19:55:09,752 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 19:55:09,752 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 19:55:09,752 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-27 19:55:09,752 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 19:55:09,752 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 19:55:09,752 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 19:55:09,752 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 19:55:09,753 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 19:55:09,753 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 19:55:09,753 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:55:09,753 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:55:09,754 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:55:09,754 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:55:09,754 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 19:55:09,754 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:55:09,754 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:55:09,754 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:55:09,754 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:55:09,754 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 19:55:09,754 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 19:55:09,754 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 19:55:09,755 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 19:55:09,755 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 19:55:09,755 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 19:55:09,755 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 19:55:09,755 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 19:55:09,755 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 19:55:09,756 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 19:55:09,756 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_0662b72c-9a78-415c-b968-abb8789b0b89/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 -> eeab39c4b0b140806b3ddcf9e96fb8e36f66c5baac57da41aaf4e88167e6b080 [2024-11-27 19:55:10,164 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 19:55:10,180 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 19:55:10,184 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 19:55:10,186 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 19:55:10,186 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 19:55:10,188 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0662b72c-9a78-415c-b968-abb8789b0b89/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound1.c [2024-11-27 19:55:13,597 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0662b72c-9a78-415c-b968-abb8789b0b89/bin/uautomizer-verify-aQ6SnzHsRB/data/5ab36f72f/e58a81cf61134af8adaec471d5fe35ac/FLAGd150a33c0 [2024-11-27 19:55:13,865 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 19:55:13,867 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0662b72c-9a78-415c-b968-abb8789b0b89/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound1.c [2024-11-27 19:55:13,877 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0662b72c-9a78-415c-b968-abb8789b0b89/bin/uautomizer-verify-aQ6SnzHsRB/data/5ab36f72f/e58a81cf61134af8adaec471d5fe35ac/FLAGd150a33c0 [2024-11-27 19:55:13,896 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0662b72c-9a78-415c-b968-abb8789b0b89/bin/uautomizer-verify-aQ6SnzHsRB/data/5ab36f72f/e58a81cf61134af8adaec471d5fe35ac [2024-11-27 19:55:13,899 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 19:55:13,901 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 19:55:13,903 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 19:55:13,903 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 19:55:13,908 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 19:55:13,909 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:55:13" (1/1) ... [2024-11-27 19:55:13,910 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fdb7a1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:13, skipping insertion in model container [2024-11-27 19:55:13,910 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:55:13" (1/1) ... [2024-11-27 19:55:13,930 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 19:55:14,146 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:55:14,162 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 19:55:14,183 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:55:14,202 INFO L204 MainTranslator]: Completed translation [2024-11-27 19:55:14,202 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:14 WrapperNode [2024-11-27 19:55:14,203 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 19:55:14,204 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 19:55:14,204 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 19:55:14,204 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 19:55:14,218 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:14" (1/1) ... [2024-11-27 19:55:14,229 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:14" (1/1) ... [2024-11-27 19:55:14,258 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 67 [2024-11-27 19:55:14,258 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 19:55:14,259 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 19:55:14,260 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 19:55:14,261 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 19:55:14,272 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:14" (1/1) ... [2024-11-27 19:55:14,272 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:14" (1/1) ... [2024-11-27 19:55:14,273 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:14" (1/1) ... [2024-11-27 19:55:14,294 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-27 19:55:14,294 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:14" (1/1) ... [2024-11-27 19:55:14,295 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:14" (1/1) ... [2024-11-27 19:55:14,300 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:14" (1/1) ... [2024-11-27 19:55:14,304 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:14" (1/1) ... [2024-11-27 19:55:14,307 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:14" (1/1) ... [2024-11-27 19:55:14,311 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:14" (1/1) ... [2024-11-27 19:55:14,312 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:14" (1/1) ... [2024-11-27 19:55:14,313 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 19:55:14,318 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 19:55:14,318 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 19:55:14,318 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 19:55:14,319 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:14" (1/1) ... [2024-11-27 19:55:14,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:55:14,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0662b72c-9a78-415c-b968-abb8789b0b89/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:14,365 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0662b72c-9a78-415c-b968-abb8789b0b89/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:14,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0662b72c-9a78-415c-b968-abb8789b0b89/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 19:55:14,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 19:55:14,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 19:55:14,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 19:55:14,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 19:55:14,406 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-27 19:55:14,406 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-27 19:55:14,485 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 19:55:14,487 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 19:55:14,789 INFO L? ?]: Removed 38 outVars from TransFormulas that were not future-live. [2024-11-27 19:55:14,789 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 19:55:14,804 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 19:55:14,804 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-27 19:55:14,805 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:55:14 BoogieIcfgContainer [2024-11-27 19:55:14,805 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 19:55:14,808 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 19:55:14,809 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 19:55:14,815 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 19:55:14,815 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 07:55:13" (1/3) ... [2024-11-27 19:55:14,816 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ad92d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:55:14, skipping insertion in model container [2024-11-27 19:55:14,816 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:14" (2/3) ... [2024-11-27 19:55:14,817 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ad92d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:55:14, skipping insertion in model container [2024-11-27 19:55:14,817 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:55:14" (3/3) ... [2024-11-27 19:55:14,819 INFO L128 eAbstractionObserver]: Analyzing ICFG ps2-ll_unwindbound1.c [2024-11-27 19:55:14,838 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 19:55:14,840 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG ps2-ll_unwindbound1.c that has 2 procedures, 65 locations, 1 initial locations, 1 loop locations, and 24 error locations. [2024-11-27 19:55:14,931 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 19:55:14,945 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;@3cd6565e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 19:55:14,945 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-11-27 19:55:14,949 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 37 states have (on average 1.7567567567567568) internal successors, (65), 61 states have internal predecessors, (65), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 19:55:14,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-27 19:55:14,955 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:55:14,956 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-27 19:55:14,957 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 19:55:14,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:14,966 INFO L85 PathProgramCache]: Analyzing trace with hash 927109, now seen corresponding path program 1 times [2024-11-27 19:55:14,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:55:14,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833626172] [2024-11-27 19:55:14,978 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:14,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:15,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:15,138 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 19:55:15,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:55:15,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833626172] [2024-11-27 19:55:15,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833626172] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:55:15,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:55:15,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 19:55:15,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560663377] [2024-11-27 19:55:15,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:55:15,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 19:55:15,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:55:15,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 19:55:15,177 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 19:55:15,179 INFO L87 Difference]: Start difference. First operand has 65 states, 37 states have (on average 1.7567567567567568) internal successors, (65), 61 states have internal predecessors, (65), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:55:15,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:55:15,217 INFO L93 Difference]: Finished difference Result 125 states and 137 transitions. [2024-11-27 19:55:15,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 19:55:15,218 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 19:55:15,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:55:15,224 INFO L225 Difference]: With dead ends: 125 [2024-11-27 19:55:15,224 INFO L226 Difference]: Without dead ends: 56 [2024-11-27 19:55:15,227 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 19:55:15,230 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:55:15,231 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:55:15,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-11-27 19:55:15,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2024-11-27 19:55:15,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 32 states have (on average 1.71875) internal successors, (55), 53 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 19:55:15,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 57 transitions. [2024-11-27 19:55:15,276 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 57 transitions. Word has length 4 [2024-11-27 19:55:15,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:55:15,277 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 57 transitions. [2024-11-27 19:55:15,277 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 19:55:15,277 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 57 transitions. [2024-11-27 19:55:15,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-27 19:55:15,278 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:55:15,278 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-27 19:55:15,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 19:55:15,278 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 19:55:15,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:15,279 INFO L85 PathProgramCache]: Analyzing trace with hash 925636, now seen corresponding path program 1 times [2024-11-27 19:55:15,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:55:15,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557581898] [2024-11-27 19:55:15,280 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:15,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:15,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:15,413 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 19:55:15,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:55:15,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557581898] [2024-11-27 19:55:15,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557581898] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:55:15,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:55:15,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 19:55:15,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449975205] [2024-11-27 19:55:15,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:55:15,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:55:15,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:55:15,416 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:55:15,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:55:15,417 INFO L87 Difference]: Start difference. First operand 56 states and 57 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:55:15,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:55:15,478 INFO L93 Difference]: Finished difference Result 56 states and 57 transitions. [2024-11-27 19:55:15,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:55:15,479 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-27 19:55:15,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:55:15,480 INFO L225 Difference]: With dead ends: 56 [2024-11-27 19:55:15,480 INFO L226 Difference]: Without dead ends: 55 [2024-11-27 19:55:15,480 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:55:15,481 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 55 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:55:15,482 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 99 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:55:15,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-11-27 19:55:15,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2024-11-27 19:55:15,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 32 states have (on average 1.6875) internal successors, (54), 52 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 19:55:15,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 56 transitions. [2024-11-27 19:55:15,490 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 56 transitions. Word has length 4 [2024-11-27 19:55:15,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:55:15,490 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 56 transitions. [2024-11-27 19:55:15,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:55:15,490 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 56 transitions. [2024-11-27 19:55:15,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-27 19:55:15,492 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:55:15,492 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-27 19:55:15,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 19:55:15,493 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 19:55:15,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:15,493 INFO L85 PathProgramCache]: Analyzing trace with hash 28694756, now seen corresponding path program 1 times [2024-11-27 19:55:15,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:55:15,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674103666] [2024-11-27 19:55:15,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:15,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:15,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:15,596 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 19:55:15,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:55:15,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674103666] [2024-11-27 19:55:15,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674103666] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:55:15,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:55:15,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 19:55:15,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114561843] [2024-11-27 19:55:15,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:55:15,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:55:15,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:55:15,598 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:55:15,598 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:55:15,598 INFO L87 Difference]: Start difference. First operand 55 states and 56 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:55:15,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:55:15,660 INFO L93 Difference]: Finished difference Result 75 states and 76 transitions. [2024-11-27 19:55:15,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 19:55:15,660 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-27 19:55:15,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:55:15,661 INFO L225 Difference]: With dead ends: 75 [2024-11-27 19:55:15,661 INFO L226 Difference]: Without dead ends: 59 [2024-11-27 19:55:15,662 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:55:15,663 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 3 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:55:15,663 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 152 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:55:15,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-11-27 19:55:15,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2024-11-27 19:55:15,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 36 states have (on average 1.6111111111111112) internal successors, (58), 56 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 19:55:15,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 60 transitions. [2024-11-27 19:55:15,672 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 60 transitions. Word has length 5 [2024-11-27 19:55:15,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:55:15,672 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 60 transitions. [2024-11-27 19:55:15,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:55:15,672 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 60 transitions. [2024-11-27 19:55:15,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-27 19:55:15,673 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:55:15,673 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:55:15,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 19:55:15,673 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 19:55:15,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:15,674 INFO L85 PathProgramCache]: Analyzing trace with hash 147026953, now seen corresponding path program 1 times [2024-11-27 19:55:15,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:55:15,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210572683] [2024-11-27 19:55:15,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:15,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:15,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 19:55:15,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [304370682] [2024-11-27 19:55:15,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:15,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:55:15,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0662b72c-9a78-415c-b968-abb8789b0b89/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:15,716 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0662b72c-9a78-415c-b968-abb8789b0b89/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:55:15,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0662b72c-9a78-415c-b968-abb8789b0b89/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 19:55:15,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:15,769 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 19:55:15,773 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:55:15,814 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 19:55:15,814 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:55:15,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:55:15,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210572683] [2024-11-27 19:55:15,815 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 19:55:15,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [304370682] [2024-11-27 19:55:15,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [304370682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:55:15,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:55:15,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 19:55:15,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2750450] [2024-11-27 19:55:15,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:55:15,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:55:15,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:55:15,821 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:55:15,821 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:55:15,822 INFO L87 Difference]: Start difference. First operand 59 states and 60 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:55:15,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:55:15,989 INFO L93 Difference]: Finished difference Result 91 states and 101 transitions. [2024-11-27 19:55:15,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:55:15,989 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-27 19:55:15,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:55:15,991 INFO L225 Difference]: With dead ends: 91 [2024-11-27 19:55:15,991 INFO L226 Difference]: Without dead ends: 87 [2024-11-27 19:55:15,993 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:55:15,994 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 25 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 19:55:15,995 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 61 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 19:55:15,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-27 19:55:16,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 75. [2024-11-27 19:55:16,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 51 states have (on average 1.607843137254902) internal successors, (82), 71 states have internal predecessors, (82), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 19:55:16,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 86 transitions. [2024-11-27 19:55:16,014 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 86 transitions. Word has length 8 [2024-11-27 19:55:16,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:55:16,014 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 86 transitions. [2024-11-27 19:55:16,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:55:16,015 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 86 transitions. [2024-11-27 19:55:16,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-27 19:55:16,015 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:55:16,015 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:55:16,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0662b72c-9a78-415c-b968-abb8789b0b89/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-27 19:55:16,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0662b72c-9a78-415c-b968-abb8789b0b89/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:55:16,216 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 19:55:16,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:16,217 INFO L85 PathProgramCache]: Analyzing trace with hash 262868299, now seen corresponding path program 1 times [2024-11-27 19:55:16,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:55:16,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796606333] [2024-11-27 19:55:16,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:16,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:16,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:16,293 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 19:55:16,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:55:16,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796606333] [2024-11-27 19:55:16,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796606333] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:55:16,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:55:16,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 19:55:16,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783365332] [2024-11-27 19:55:16,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:55:16,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:55:16,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:55:16,295 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:55:16,295 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:55:16,295 INFO L87 Difference]: Start difference. First operand 75 states and 86 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:55:16,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:55:16,408 INFO L93 Difference]: Finished difference Result 93 states and 101 transitions. [2024-11-27 19:55:16,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:55:16,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-27 19:55:16,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:55:16,411 INFO L225 Difference]: With dead ends: 93 [2024-11-27 19:55:16,413 INFO L226 Difference]: Without dead ends: 85 [2024-11-27 19:55:16,414 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 19:55:16,414 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 22 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:55:16,415 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 65 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:55:16,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-27 19:55:16,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 80. [2024-11-27 19:55:16,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 56 states have (on average 1.5) internal successors, (84), 76 states have internal predecessors, (84), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 19:55:16,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 88 transitions. [2024-11-27 19:55:16,431 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 88 transitions. Word has length 9 [2024-11-27 19:55:16,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:55:16,432 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 88 transitions. [2024-11-27 19:55:16,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:55:16,432 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 88 transitions. [2024-11-27 19:55:16,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-27 19:55:16,432 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:55:16,432 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:55:16,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 19:55:16,433 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 19:55:16,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:16,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1384168589, now seen corresponding path program 1 times [2024-11-27 19:55:16,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:55:16,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852722166] [2024-11-27 19:55:16,436 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:16,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:16,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:16,583 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 19:55:16,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:55:16,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852722166] [2024-11-27 19:55:16,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852722166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:55:16,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:55:16,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:55:16,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632371764] [2024-11-27 19:55:16,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:55:16,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:55:16,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:55:16,584 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:55:16,585 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:55:16,585 INFO L87 Difference]: Start difference. First operand 80 states and 88 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:55:16,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:55:16,717 INFO L93 Difference]: Finished difference Result 89 states and 93 transitions. [2024-11-27 19:55:16,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:55:16,718 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-27 19:55:16,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:55:16,719 INFO L225 Difference]: With dead ends: 89 [2024-11-27 19:55:16,719 INFO L226 Difference]: Without dead ends: 77 [2024-11-27 19:55:16,719 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:55:16,720 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 41 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:55:16,720 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 63 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:55:16,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-11-27 19:55:16,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 73. [2024-11-27 19:55:16,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 49 states have (on average 1.489795918367347) internal successors, (73), 69 states have internal predecessors, (73), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 19:55:16,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 77 transitions. [2024-11-27 19:55:16,737 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 77 transitions. Word has length 12 [2024-11-27 19:55:16,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:55:16,738 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 77 transitions. [2024-11-27 19:55:16,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:55:16,738 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 77 transitions. [2024-11-27 19:55:16,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-27 19:55:16,742 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:55:16,742 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:55:16,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 19:55:16,742 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 19:55:16,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:16,743 INFO L85 PathProgramCache]: Analyzing trace with hash -931407821, now seen corresponding path program 1 times [2024-11-27 19:55:16,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:55:16,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316982007] [2024-11-27 19:55:16,743 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:16,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:16,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:16,869 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 19:55:16,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:55:16,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316982007] [2024-11-27 19:55:16,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316982007] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:55:16,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:55:16,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 19:55:16,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167822880] [2024-11-27 19:55:16,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:55:16,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:55:16,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:55:16,872 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:55:16,872 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:55:16,872 INFO L87 Difference]: Start difference. First operand 73 states and 77 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 19:55:16,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:55:16,904 INFO L93 Difference]: Finished difference Result 75 states and 77 transitions. [2024-11-27 19:55:16,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:55:16,905 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2024-11-27 19:55:16,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:55:16,907 INFO L225 Difference]: With dead ends: 75 [2024-11-27 19:55:16,907 INFO L226 Difference]: Without dead ends: 73 [2024-11-27 19:55:16,908 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 19:55:16,909 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 1 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:55:16,909 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 102 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:55:16,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-11-27 19:55:16,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2024-11-27 19:55:16,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 49 states have (on average 1.4489795918367347) internal successors, (71), 69 states have internal predecessors, (71), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 19:55:16,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 75 transitions. [2024-11-27 19:55:16,917 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 75 transitions. Word has length 21 [2024-11-27 19:55:16,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:55:16,918 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 75 transitions. [2024-11-27 19:55:16,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 19:55:16,918 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 75 transitions. [2024-11-27 19:55:16,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-27 19:55:16,919 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:55:16,919 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:55:16,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 19:55:16,920 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 19:55:16,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:16,920 INFO L85 PathProgramCache]: Analyzing trace with hash -104832841, now seen corresponding path program 1 times [2024-11-27 19:55:16,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:55:16,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259549581] [2024-11-27 19:55:16,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:16,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:16,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:17,037 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 19:55:17,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:55:17,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259549581] [2024-11-27 19:55:17,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259549581] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:55:17,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:55:17,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:55:17,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398995475] [2024-11-27 19:55:17,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:55:17,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:55:17,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:55:17,038 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:55:17,039 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:55:17,039 INFO L87 Difference]: Start difference. First operand 73 states and 75 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 19:55:17,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:55:17,166 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2024-11-27 19:55:17,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:55:17,167 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-11-27 19:55:17,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:55:17,168 INFO L225 Difference]: With dead ends: 76 [2024-11-27 19:55:17,168 INFO L226 Difference]: Without dead ends: 75 [2024-11-27 19:55:17,168 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:55:17,169 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 1 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:55:17,169 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 78 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:55:17,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-27 19:55:17,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 74. [2024-11-27 19:55:17,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 50 states have (on average 1.44) internal successors, (72), 70 states have internal predecessors, (72), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 19:55:17,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 76 transitions. [2024-11-27 19:55:17,176 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 76 transitions. Word has length 25 [2024-11-27 19:55:17,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:55:17,177 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 76 transitions. [2024-11-27 19:55:17,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 19:55:17,177 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 76 transitions. [2024-11-27 19:55:17,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-27 19:55:17,178 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:55:17,178 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:55:17,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 19:55:17,178 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 19:55:17,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:17,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1045149305, now seen corresponding path program 1 times [2024-11-27 19:55:17,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:55:17,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819692438] [2024-11-27 19:55:17,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:17,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:17,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:17,279 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 19:55:17,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:55:17,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819692438] [2024-11-27 19:55:17,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819692438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:55:17,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:55:17,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:55:17,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096821292] [2024-11-27 19:55:17,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:55:17,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:55:17,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:55:17,281 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:55:17,282 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:55:17,282 INFO L87 Difference]: Start difference. First operand 74 states and 76 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 19:55:17,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:55:17,411 INFO L93 Difference]: Finished difference Result 76 states and 78 transitions. [2024-11-27 19:55:17,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:55:17,411 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2024-11-27 19:55:17,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:55:17,412 INFO L225 Difference]: With dead ends: 76 [2024-11-27 19:55:17,413 INFO L226 Difference]: Without dead ends: 75 [2024-11-27 19:55:17,413 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:55:17,414 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 0 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:55:17,414 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 62 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:55:17,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-27 19:55:17,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2024-11-27 19:55:17,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 51 states have (on average 1.4313725490196079) internal successors, (73), 71 states have internal predecessors, (73), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 19:55:17,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 77 transitions. [2024-11-27 19:55:17,422 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 77 transitions. Word has length 26 [2024-11-27 19:55:17,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:55:17,423 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 77 transitions. [2024-11-27 19:55:17,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 19:55:17,423 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 77 transitions. [2024-11-27 19:55:17,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-27 19:55:17,424 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:55:17,424 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:55:17,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 19:55:17,424 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 19:55:17,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:17,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1825052365, now seen corresponding path program 1 times [2024-11-27 19:55:17,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:55:17,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927628291] [2024-11-27 19:55:17,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:17,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:17,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:17,548 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:55:17,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:55:17,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927628291] [2024-11-27 19:55:17,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927628291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:55:17,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:55:17,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 19:55:17,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867751259] [2024-11-27 19:55:17,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:55:17,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 19:55:17,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:55:17,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 19:55:17,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:55:17,551 INFO L87 Difference]: Start difference. First operand 75 states and 77 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 19:55:17,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:55:17,606 INFO L93 Difference]: Finished difference Result 90 states and 91 transitions. [2024-11-27 19:55:17,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 19:55:17,607 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2024-11-27 19:55:17,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:55:17,608 INFO L225 Difference]: With dead ends: 90 [2024-11-27 19:55:17,609 INFO L226 Difference]: Without dead ends: 89 [2024-11-27 19:55:17,609 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-27 19:55:17,610 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 37 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:55:17,610 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 201 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:55:17,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-27 19:55:17,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 74. [2024-11-27 19:55:17,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 51 states have (on average 1.411764705882353) internal successors, (72), 70 states have internal predecessors, (72), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 19:55:17,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 76 transitions. [2024-11-27 19:55:17,617 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 76 transitions. Word has length 29 [2024-11-27 19:55:17,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:55:17,618 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 76 transitions. [2024-11-27 19:55:17,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 19:55:17,618 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 76 transitions. [2024-11-27 19:55:17,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-27 19:55:17,619 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:55:17,619 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:55:17,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 19:55:17,620 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 19:55:17,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:17,620 INFO L85 PathProgramCache]: Analyzing trace with hash 144048512, now seen corresponding path program 1 times [2024-11-27 19:55:17,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:55:17,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436102017] [2024-11-27 19:55:17,621 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:17,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:17,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:17,730 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:55:17,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:55:17,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436102017] [2024-11-27 19:55:17,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436102017] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:55:17,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [620371689] [2024-11-27 19:55:17,731 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:17,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:55:17,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0662b72c-9a78-415c-b968-abb8789b0b89/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:17,733 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0662b72c-9a78-415c-b968-abb8789b0b89/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:55:17,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0662b72c-9a78-415c-b968-abb8789b0b89/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 19:55:17,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:17,793 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 19:55:17,795 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:55:17,910 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:55:17,910 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:55:18,026 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:55:18,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [620371689] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:55:18,027 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:55:18,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 6] total 6 [2024-11-27 19:55:18,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212531951] [2024-11-27 19:55:18,027 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:55:18,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 19:55:18,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:55:18,028 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 19:55:18,028 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 19:55:18,028 INFO L87 Difference]: Start difference. First operand 74 states and 76 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 19:55:18,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:55:18,097 INFO L93 Difference]: Finished difference Result 97 states and 98 transitions. [2024-11-27 19:55:18,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 19:55:18,099 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2024-11-27 19:55:18,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:55:18,099 INFO L225 Difference]: With dead ends: 97 [2024-11-27 19:55:18,100 INFO L226 Difference]: Without dead ends: 45 [2024-11-27 19:55:18,100 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 61 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-11-27 19:55:18,104 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 35 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:55:18,105 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 107 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:55:18,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-11-27 19:55:18,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-11-27 19:55:18,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 36 states have (on average 1.1666666666666667) internal successors, (42), 42 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 19:55:18,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 44 transitions. [2024-11-27 19:55:18,116 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 44 transitions. Word has length 32 [2024-11-27 19:55:18,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:55:18,117 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 44 transitions. [2024-11-27 19:55:18,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 19:55:18,117 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 44 transitions. [2024-11-27 19:55:18,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-27 19:55:18,119 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:55:18,119 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:55:18,131 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0662b72c-9a78-415c-b968-abb8789b0b89/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 19:55:18,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0662b72c-9a78-415c-b968-abb8789b0b89/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-27 19:55:18,320 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 19:55:18,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:18,321 INFO L85 PathProgramCache]: Analyzing trace with hash 144051618, now seen corresponding path program 1 times [2024-11-27 19:55:18,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:55:18,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474187922] [2024-11-27 19:55:18,321 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:18,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:18,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 19:55:18,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [222547391] [2024-11-27 19:55:18,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:18,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:55:18,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0662b72c-9a78-415c-b968-abb8789b0b89/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:18,362 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0662b72c-9a78-415c-b968-abb8789b0b89/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:55:18,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0662b72c-9a78-415c-b968-abb8789b0b89/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 19:55:18,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:18,418 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 19:55:18,419 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:55:18,487 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:55:18,487 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:55:18,629 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:55:18,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:55:18,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474187922] [2024-11-27 19:55:18,631 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 19:55:18,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [222547391] [2024-11-27 19:55:18,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [222547391] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:55:18,631 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 19:55:18,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-11-27 19:55:18,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798065545] [2024-11-27 19:55:18,632 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 19:55:18,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 19:55:18,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:55:18,634 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 19:55:18,635 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-27 19:55:18,635 INFO L87 Difference]: Start difference. First operand 45 states and 44 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 19:55:18,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:55:18,717 INFO L93 Difference]: Finished difference Result 45 states and 44 transitions. [2024-11-27 19:55:18,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:55:18,719 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 32 [2024-11-27 19:55:18,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:55:18,719 INFO L225 Difference]: With dead ends: 45 [2024-11-27 19:55:18,719 INFO L226 Difference]: Without dead ends: 44 [2024-11-27 19:55:18,720 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-27 19:55:18,721 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 8 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:55:18,721 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 61 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:55:18,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-27 19:55:18,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2024-11-27 19:55:18,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 41 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 19:55:18,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 43 transitions. [2024-11-27 19:55:18,731 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 43 transitions. Word has length 32 [2024-11-27 19:55:18,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:55:18,731 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 43 transitions. [2024-11-27 19:55:18,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 19:55:18,731 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 43 transitions. [2024-11-27 19:55:18,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-27 19:55:18,732 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:55:18,732 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:55:18,742 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0662b72c-9a78-415c-b968-abb8789b0b89/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 19:55:18,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0662b72c-9a78-415c-b968-abb8789b0b89/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-27 19:55:18,932 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 19:55:18,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:18,933 INFO L85 PathProgramCache]: Analyzing trace with hash 170632951, now seen corresponding path program 1 times [2024-11-27 19:55:18,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:55:18,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795614743] [2024-11-27 19:55:18,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:18,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:18,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:19,031 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:55:19,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:55:19,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795614743] [2024-11-27 19:55:19,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795614743] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:55:19,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1470700080] [2024-11-27 19:55:19,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:19,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:55:19,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0662b72c-9a78-415c-b968-abb8789b0b89/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:19,036 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0662b72c-9a78-415c-b968-abb8789b0b89/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:55:19,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0662b72c-9a78-415c-b968-abb8789b0b89/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 19:55:19,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:19,085 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 19:55:19,086 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:55:19,243 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:55:19,243 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:55:19,362 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:55:19,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1470700080] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:55:19,362 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:55:19,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-27 19:55:19,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148826241] [2024-11-27 19:55:19,363 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:55:19,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 19:55:19,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:55:19,364 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 19:55:19,365 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-11-27 19:55:19,368 INFO L87 Difference]: Start difference. First operand 44 states and 43 transitions. Second operand has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 10 states have internal predecessors, (78), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 19:55:19,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:55:19,495 INFO L93 Difference]: Finished difference Result 44 states and 43 transitions. [2024-11-27 19:55:19,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 19:55:19,496 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 10 states have internal predecessors, (78), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 33 [2024-11-27 19:55:19,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:55:19,496 INFO L225 Difference]: With dead ends: 44 [2024-11-27 19:55:19,496 INFO L226 Difference]: Without dead ends: 43 [2024-11-27 19:55:19,496 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2024-11-27 19:55:19,497 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 24 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:55:19,497 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 60 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:55:19,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-11-27 19:55:19,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2024-11-27 19:55:19,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 36 states have (on average 1.1111111111111112) internal successors, (40), 40 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 19:55:19,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 42 transitions. [2024-11-27 19:55:19,503 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 42 transitions. Word has length 33 [2024-11-27 19:55:19,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:55:19,504 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 42 transitions. [2024-11-27 19:55:19,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 10 states have internal predecessors, (78), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 19:55:19,505 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 42 transitions. [2024-11-27 19:55:19,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-27 19:55:19,506 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:55:19,509 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:55:19,521 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0662b72c-9a78-415c-b968-abb8789b0b89/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-27 19:55:19,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0662b72c-9a78-415c-b968-abb8789b0b89/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-27 19:55:19,710 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 19:55:19,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:19,710 INFO L85 PathProgramCache]: Analyzing trace with hash 994654276, now seen corresponding path program 1 times [2024-11-27 19:55:19,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:55:19,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219647403] [2024-11-27 19:55:19,710 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:19,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:19,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:19,824 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:55:19,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:55:19,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219647403] [2024-11-27 19:55:19,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219647403] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:55:19,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73022770] [2024-11-27 19:55:19,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:19,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:55:19,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0662b72c-9a78-415c-b968-abb8789b0b89/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:19,828 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0662b72c-9a78-415c-b968-abb8789b0b89/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:55:19,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0662b72c-9a78-415c-b968-abb8789b0b89/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 19:55:19,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:19,884 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 19:55:19,885 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:55:20,058 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:55:20,058 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:55:20,177 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:55:20,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [73022770] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:55:20,177 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:55:20,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-27 19:55:20,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897115009] [2024-11-27 19:55:20,178 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:55:20,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 19:55:20,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:55:20,179 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 19:55:20,179 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=50, Unknown=0, NotChecked=0, Total=90 [2024-11-27 19:55:20,179 INFO L87 Difference]: Start difference. First operand 43 states and 42 transitions. Second operand has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 10 states have internal predecessors, (80), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 19:55:20,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:55:20,253 INFO L93 Difference]: Finished difference Result 43 states and 42 transitions. [2024-11-27 19:55:20,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 19:55:20,254 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 10 states have internal predecessors, (80), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 34 [2024-11-27 19:55:20,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:55:20,254 INFO L225 Difference]: With dead ends: 43 [2024-11-27 19:55:20,255 INFO L226 Difference]: Without dead ends: 40 [2024-11-27 19:55:20,255 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=60, Unknown=0, NotChecked=0, Total=110 [2024-11-27 19:55:20,256 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 24 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:55:20,256 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 34 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:55:20,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-11-27 19:55:20,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2024-11-27 19:55:20,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 36 states have (on average 1.0277777777777777) internal successors, (37), 37 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 19:55:20,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 39 transitions. [2024-11-27 19:55:20,260 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 39 transitions. Word has length 34 [2024-11-27 19:55:20,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:55:20,261 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 39 transitions. [2024-11-27 19:55:20,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 10 states have internal predecessors, (80), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 19:55:20,261 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 39 transitions. [2024-11-27 19:55:20,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-27 19:55:20,262 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:55:20,262 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:55:20,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0662b72c-9a78-415c-b968-abb8789b0b89/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-27 19:55:20,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0662b72c-9a78-415c-b968-abb8789b0b89/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-27 19:55:20,463 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-27 19:55:20,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:20,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1914944794, now seen corresponding path program 1 times [2024-11-27 19:55:20,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:55:20,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859752744] [2024-11-27 19:55:20,464 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:20,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:20,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:20,611 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:55:20,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:55:20,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859752744] [2024-11-27 19:55:20,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859752744] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:55:20,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1402810159] [2024-11-27 19:55:20,612 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:20,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:55:20,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0662b72c-9a78-415c-b968-abb8789b0b89/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:20,614 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0662b72c-9a78-415c-b968-abb8789b0b89/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:55:20,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0662b72c-9a78-415c-b968-abb8789b0b89/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 19:55:20,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:20,668 INFO L256 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 19:55:20,671 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:55:20,920 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:55:20,920 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:55:20,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1402810159] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:55:20,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 19:55:20,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-11-27 19:55:20,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624861096] [2024-11-27 19:55:20,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:55:20,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 19:55:20,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:55:20,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 19:55:20,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-27 19:55:20,922 INFO L87 Difference]: Start difference. First operand 40 states and 39 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 19:55:20,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:55:20,982 INFO L93 Difference]: Finished difference Result 40 states and 39 transitions. [2024-11-27 19:55:20,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 19:55:20,983 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2024-11-27 19:55:20,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:55:20,983 INFO L225 Difference]: With dead ends: 40 [2024-11-27 19:55:20,983 INFO L226 Difference]: Without dead ends: 0 [2024-11-27 19:55:20,984 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-27 19:55:20,984 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 4 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:55:20,985 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 51 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:55:20,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-27 19:55:20,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-27 19:55:20,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:55:20,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-27 19:55:20,986 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2024-11-27 19:55:20,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:55:20,986 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 19:55:20,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 19:55:20,986 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-27 19:55:20,986 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-27 19:55:20,989 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 24 remaining) [2024-11-27 19:55:20,990 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 24 remaining) [2024-11-27 19:55:20,990 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 24 remaining) [2024-11-27 19:55:20,990 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 24 remaining) [2024-11-27 19:55:20,991 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 24 remaining) [2024-11-27 19:55:20,991 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 24 remaining) [2024-11-27 19:55:20,991 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 24 remaining) [2024-11-27 19:55:20,991 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 24 remaining) [2024-11-27 19:55:20,991 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 24 remaining) [2024-11-27 19:55:20,991 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 24 remaining) [2024-11-27 19:55:20,991 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 24 remaining) [2024-11-27 19:55:20,992 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 24 remaining) [2024-11-27 19:55:20,992 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 24 remaining) [2024-11-27 19:55:20,992 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 24 remaining) [2024-11-27 19:55:20,992 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 24 remaining) [2024-11-27 19:55:20,992 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 24 remaining) [2024-11-27 19:55:20,992 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 24 remaining) [2024-11-27 19:55:20,993 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 24 remaining) [2024-11-27 19:55:20,993 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 24 remaining) [2024-11-27 19:55:20,993 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 24 remaining) [2024-11-27 19:55:20,993 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 24 remaining) [2024-11-27 19:55:20,993 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 24 remaining) [2024-11-27 19:55:20,993 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 24 remaining) [2024-11-27 19:55:20,993 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 24 remaining) [2024-11-27 19:55:21,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0662b72c-9a78-415c-b968-abb8789b0b89/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-27 19:55:21,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0662b72c-9a78-415c-b968-abb8789b0b89/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-27 19:55:21,197 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:55:21,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-27 19:55:21,261 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 19:55:21,277 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 07:55:21 BoogieIcfgContainer [2024-11-27 19:55:21,277 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 19:55:21,278 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 19:55:21,278 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 19:55:21,278 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 19:55:21,279 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:55:14" (3/4) ... [2024-11-27 19:55:21,282 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-27 19:55:21,288 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-27 19:55:21,292 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-27 19:55:21,292 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-27 19:55:21,292 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-27 19:55:21,293 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-27 19:55:21,386 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0662b72c-9a78-415c-b968-abb8789b0b89/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 19:55:21,386 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0662b72c-9a78-415c-b968-abb8789b0b89/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-27 19:55:21,386 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 19:55:21,387 INFO L158 Benchmark]: Toolchain (without parser) took 7486.65ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 84.3MB in the end (delta: 8.6MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2024-11-27 19:55:21,388 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 117.4MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 19:55:21,388 INFO L158 Benchmark]: CACSL2BoogieTranslator took 300.75ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 81.9MB in the end (delta: 10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 19:55:21,388 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.66ms. Allocated memory is still 117.4MB. Free memory was 81.9MB in the beginning and 80.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 19:55:21,389 INFO L158 Benchmark]: Boogie Preprocessor took 57.83ms. Allocated memory is still 117.4MB. Free memory was 80.2MB in the beginning and 79.1MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 19:55:21,389 INFO L158 Benchmark]: RCFGBuilder took 487.69ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 66.2MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 19:55:21,390 INFO L158 Benchmark]: TraceAbstraction took 6468.83ms. Allocated memory is still 117.4MB. Free memory was 65.7MB in the beginning and 89.4MB in the end (delta: -23.7MB). Peak memory consumption was 38.6MB. Max. memory is 16.1GB. [2024-11-27 19:55:21,390 INFO L158 Benchmark]: Witness Printer took 108.56ms. Allocated memory is still 117.4MB. Free memory was 89.4MB in the beginning and 84.3MB in the end (delta: 5.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 19:55:21,392 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47ms. Allocated memory is still 117.4MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 300.75ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 81.9MB in the end (delta: 10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.66ms. Allocated memory is still 117.4MB. Free memory was 81.9MB in the beginning and 80.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 57.83ms. Allocated memory is still 117.4MB. Free memory was 80.2MB in the beginning and 79.1MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 487.69ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 66.2MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 6468.83ms. Allocated memory is still 117.4MB. Free memory was 65.7MB in the beginning and 89.4MB in the end (delta: -23.7MB). Peak memory consumption was 38.6MB. Max. memory is 16.1GB. * Witness Printer took 108.56ms. Allocated memory is still 117.4MB. Free memory was 89.4MB in the beginning and 84.3MB in the end (delta: 5.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 65 locations, 24 error locations. Started 1 CEGAR loops. OverallTime: 6.3s, OverallIterations: 15, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 283 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 280 mSDsluCounter, 1260 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 672 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 575 IncrementalHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 588 mSDtfsCounter, 575 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 347 GetRequests, 287 SyntacticMatches, 3 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=80occurred in iteration=5, InterpolantAutomatonStates: 64, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 15 MinimizatonAttempts, 37 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 485 NumberOfCodeBlocks, 485 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 553 ConstructedInterpolants, 0 QuantifiedInterpolants, 2457 SizeOfPredicates, 5 NumberOfNonLiveVariables, 432 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 23 InterpolantComputations, 11 PerfectInterpolantSequences, 22/61 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 24 specifications checked. All of them hold - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: (((((c == 0) && (y == 0)) && (counter == 0)) && (x == 0)) || (((x == 1) && (y == 1)) && (counter == 1))) RESULT: Ultimate proved your program to be correct! [2024-11-27 19:55:21,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0662b72c-9a78-415c-b968-abb8789b0b89/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE