./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound100.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/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_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/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_91825d79-8192-4fbf-9ff4-19f3b40fba70/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 c39f3d25be406fa166da46a61b4a36c0a90262202dfdee83ae8e5211f182a6f7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:18:26,396 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:18:26,493 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 03:18:26,498 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:18:26,499 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:18:26,532 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:18:26,534 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:18:26,534 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:18:26,535 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:18:26,535 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:18:26,535 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:18:26,536 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:18:26,537 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:18:26,537 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:18:26,537 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:18:26,537 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:18:26,537 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:18:26,538 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:18:26,538 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:18:26,538 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:18:26,539 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:18:26,539 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:18:26,539 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:18:26,539 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:18:26,539 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 03:18:26,539 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:18:26,539 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:18:26,539 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:18:26,540 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:18:26,540 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:18:26,540 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:18:26,540 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:18:26,540 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:18:26,540 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:18:26,540 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:18:26,541 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:18:26,541 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:18:26,542 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:18:26,542 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:18:26,542 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:18:26,542 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:18:26,542 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:18:26,542 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:18:26,542 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:18:26,543 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:18:26,543 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:18:26,543 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:18:26,543 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:18:26,543 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:18:26,543 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:18:26,543 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_91825d79-8192-4fbf-9ff4-19f3b40fba70/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 -> c39f3d25be406fa166da46a61b4a36c0a90262202dfdee83ae8e5211f182a6f7 [2024-11-28 03:18:26,851 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:18:26,868 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:18:26,870 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:18:26,873 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:18:26,873 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:18:26,875 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound100.c [2024-11-28 03:18:29,807 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/data/d30a7bcc7/f57d5c3869e04ff0a6ed8d79da33bd4e/FLAG8ecad8c0d [2024-11-28 03:18:30,143 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:18:30,144 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound100.c [2024-11-28 03:18:30,157 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/data/d30a7bcc7/f57d5c3869e04ff0a6ed8d79da33bd4e/FLAG8ecad8c0d [2024-11-28 03:18:30,173 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/data/d30a7bcc7/f57d5c3869e04ff0a6ed8d79da33bd4e [2024-11-28 03:18:30,176 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:18:30,178 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:18:30,179 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:18:30,179 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:18:30,186 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:18:30,186 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:18:30" (1/1) ... [2024-11-28 03:18:30,187 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46207ff3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:30, skipping insertion in model container [2024-11-28 03:18:30,187 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:18:30" (1/1) ... [2024-11-28 03:18:30,208 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:18:30,419 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:18:30,436 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:18:30,463 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:18:30,483 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:18:30,485 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:30 WrapperNode [2024-11-28 03:18:30,485 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:18:30,486 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:18:30,486 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:18:30,486 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:18:30,494 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:30" (1/1) ... [2024-11-28 03:18:30,505 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:30" (1/1) ... [2024-11-28 03:18:30,529 INFO L138 Inliner]: procedures = 14, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 92 [2024-11-28 03:18:30,529 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:18:30,530 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:18:30,530 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:18:30,530 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:18:30,540 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:30" (1/1) ... [2024-11-28 03:18:30,540 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:30" (1/1) ... [2024-11-28 03:18:30,542 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:30" (1/1) ... [2024-11-28 03:18:30,562 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-11-28 03:18:30,562 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:30" (1/1) ... [2024-11-28 03:18:30,562 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:30" (1/1) ... [2024-11-28 03:18:30,566 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:30" (1/1) ... [2024-11-28 03:18:30,567 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:30" (1/1) ... [2024-11-28 03:18:30,574 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:30" (1/1) ... [2024-11-28 03:18:30,575 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:30" (1/1) ... [2024-11-28 03:18:30,576 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:30" (1/1) ... [2024-11-28 03:18:30,577 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:18:30,578 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:18:30,578 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:18:30,578 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:18:30,579 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:30" (1/1) ... [2024-11-28 03:18:30,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:18:30,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:18:30,614 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:18:30,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:18:30,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:18:30,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:18:30,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 03:18:30,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:18:30,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:18:30,642 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 03:18:30,642 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 03:18:30,704 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:18:30,706 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:18:31,032 INFO L? ?]: Removed 51 outVars from TransFormulas that were not future-live. [2024-11-28 03:18:31,032 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:18:31,045 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:18:31,047 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-28 03:18:31,047 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:18:31 BoogieIcfgContainer [2024-11-28 03:18:31,047 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:18:31,054 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:18:31,054 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:18:31,060 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:18:31,061 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:18:30" (1/3) ... [2024-11-28 03:18:31,062 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10be1cec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:18:31, skipping insertion in model container [2024-11-28 03:18:31,062 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:30" (2/3) ... [2024-11-28 03:18:31,063 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10be1cec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:18:31, skipping insertion in model container [2024-11-28 03:18:31,063 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:18:31" (3/3) ... [2024-11-28 03:18:31,065 INFO L128 eAbstractionObserver]: Analyzing ICFG hard2_valuebound100.c [2024-11-28 03:18:31,083 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:18:31,084 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hard2_valuebound100.c that has 2 procedures, 72 locations, 1 initial locations, 2 loop locations, and 24 error locations. [2024-11-28 03:18:31,142 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:18:31,155 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;@1e979cb4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:18:31,156 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-11-28 03:18:31,160 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 40 states have (on average 1.8) internal successors, (72), 63 states have internal predecessors, (72), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-28 03:18:31,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-28 03:18:31,166 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:31,167 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-28 03:18:31,167 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:18:31,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:31,172 INFO L85 PathProgramCache]: Analyzing trace with hash 889508871, now seen corresponding path program 1 times [2024-11-28 03:18:31,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:31,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156536582] [2024-11-28 03:18:31,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:31,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:31,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:31,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:31,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:31,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156536582] [2024-11-28 03:18:31,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156536582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:31,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:31,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:18:31,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181998276] [2024-11-28 03:18:31,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:31,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:18:31,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:31,344 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:18:31,344 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:18:31,346 INFO L87 Difference]: Start difference. First operand has 72 states, 40 states have (on average 1.8) internal successors, (72), 63 states have internal predecessors, (72), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2024-11-28 03:18:31,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:31,369 INFO L93 Difference]: Finished difference Result 140 states and 174 transitions. [2024-11-28 03:18:31,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:18:31,371 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2024-11-28 03:18:31,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:31,378 INFO L225 Difference]: With dead ends: 140 [2024-11-28 03:18:31,378 INFO L226 Difference]: Without dead ends: 64 [2024-11-28 03:18:31,382 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 [2024-11-28 03:18:31,385 INFO L435 NwaCegarLoop]: 79 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, 79 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:31,385 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:18:31,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-11-28 03:18:31,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2024-11-28 03:18:31,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 34 states have (on average 1.7647058823529411) internal successors, (60), 57 states have internal predecessors, (60), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 03:18:31,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 70 transitions. [2024-11-28 03:18:31,426 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 70 transitions. Word has length 6 [2024-11-28 03:18:31,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:31,426 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 70 transitions. [2024-11-28 03:18:31,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2024-11-28 03:18:31,427 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 70 transitions. [2024-11-28 03:18:31,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-28 03:18:31,428 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:31,428 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:31,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:18:31,429 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)] === [2024-11-28 03:18:31,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:31,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1233983509, now seen corresponding path program 1 times [2024-11-28 03:18:31,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:31,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916181508] [2024-11-28 03:18:31,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:31,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:31,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:18:31,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1307297961] [2024-11-28 03:18:31,484 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:31,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:18:31,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:18:31,490 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:18:31,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:18:31,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:31,577 INFO L256 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:18:31,582 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:18:31,716 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:18:31,716 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:18:31,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:31,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916181508] [2024-11-28 03:18:31,717 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:18:31,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1307297961] [2024-11-28 03:18:31,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1307297961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:31,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:31,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:18:31,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238711190] [2024-11-28 03:18:31,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:31,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:18:31,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:31,722 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:18:31,722 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:18:31,722 INFO L87 Difference]: Start difference. First operand 64 states and 70 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:18:31,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:31,865 INFO L93 Difference]: Finished difference Result 133 states and 154 transitions. [2024-11-28 03:18:31,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:18:31,867 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2024-11-28 03:18:31,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:31,869 INFO L225 Difference]: With dead ends: 133 [2024-11-28 03:18:31,869 INFO L226 Difference]: Without dead ends: 85 [2024-11-28 03:18:31,871 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:18:31,872 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 15 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:31,873 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 93 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:18:31,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-28 03:18:31,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 83. [2024-11-28 03:18:31,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 48 states have (on average 1.6875) internal successors, (81), 71 states have internal predecessors, (81), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 03:18:31,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 101 transitions. [2024-11-28 03:18:31,894 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 101 transitions. Word has length 15 [2024-11-28 03:18:31,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:31,896 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 101 transitions. [2024-11-28 03:18:31,896 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:18:31,896 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 101 transitions. [2024-11-28 03:18:31,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-28 03:18:31,897 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:31,898 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:31,909 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:18:32,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:18:32,103 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:18:32,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:32,103 INFO L85 PathProgramCache]: Analyzing trace with hash -636304813, now seen corresponding path program 1 times [2024-11-28 03:18:32,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:32,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589804315] [2024-11-28 03:18:32,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:32,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:32,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:18:32,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [493221714] [2024-11-28 03:18:32,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:32,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:18:32,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:18:32,135 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:18:32,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:18:32,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:32,193 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:18:32,195 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:18:32,231 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 03:18:32,231 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:18:32,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:32,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589804315] [2024-11-28 03:18:32,231 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:18:32,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493221714] [2024-11-28 03:18:32,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [493221714] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:32,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:32,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:18:32,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045172904] [2024-11-28 03:18:32,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:32,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:18:32,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:32,233 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:18:32,233 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:18:32,233 INFO L87 Difference]: Start difference. First operand 83 states and 101 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 03:18:32,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:32,367 INFO L93 Difference]: Finished difference Result 117 states and 144 transitions. [2024-11-28 03:18:32,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:18:32,367 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2024-11-28 03:18:32,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:32,369 INFO L225 Difference]: With dead ends: 117 [2024-11-28 03:18:32,369 INFO L226 Difference]: Without dead ends: 113 [2024-11-28 03:18:32,369 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:18:32,370 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 39 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:32,370 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 87 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:18:32,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-28 03:18:32,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 99. [2024-11-28 03:18:32,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 62 states have (on average 1.6612903225806452) internal successors, (103), 85 states have internal predecessors, (103), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 03:18:32,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 127 transitions. [2024-11-28 03:18:32,398 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 127 transitions. Word has length 23 [2024-11-28 03:18:32,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:32,398 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 127 transitions. [2024-11-28 03:18:32,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 03:18:32,401 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 127 transitions. [2024-11-28 03:18:32,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-28 03:18:32,402 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:32,402 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:32,410 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 03:18:32,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:18:32,603 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:18:32,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:32,603 INFO L85 PathProgramCache]: Analyzing trace with hash -636304769, now seen corresponding path program 1 times [2024-11-28 03:18:32,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:32,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87611583] [2024-11-28 03:18:32,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:32,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:32,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:32,798 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 03:18:32,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:32,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87611583] [2024-11-28 03:18:32,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87611583] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:32,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:32,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:18:32,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873471278] [2024-11-28 03:18:32,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:32,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:18:32,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:32,800 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:18:32,800 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:18:32,800 INFO L87 Difference]: Start difference. First operand 99 states and 127 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 03:18:32,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:32,895 INFO L93 Difference]: Finished difference Result 107 states and 132 transitions. [2024-11-28 03:18:32,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:18:32,896 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2024-11-28 03:18:32,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:32,897 INFO L225 Difference]: With dead ends: 107 [2024-11-28 03:18:32,897 INFO L226 Difference]: Without dead ends: 105 [2024-11-28 03:18:32,898 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:18:32,898 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 14 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:32,898 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 106 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:18:32,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-11-28 03:18:32,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 99. [2024-11-28 03:18:32,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 62 states have (on average 1.6290322580645162) internal successors, (101), 85 states have internal predecessors, (101), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 03:18:32,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 125 transitions. [2024-11-28 03:18:32,915 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 125 transitions. Word has length 23 [2024-11-28 03:18:32,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:32,915 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 125 transitions. [2024-11-28 03:18:32,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 03:18:32,916 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 125 transitions. [2024-11-28 03:18:32,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-28 03:18:32,916 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:32,916 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:32,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:18:32,917 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:18:32,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:32,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1603566667, now seen corresponding path program 1 times [2024-11-28 03:18:32,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:32,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869498473] [2024-11-28 03:18:32,918 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:32,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:32,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:33,191 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 03:18:33,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:33,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869498473] [2024-11-28 03:18:33,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869498473] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:33,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:33,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:18:33,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923735388] [2024-11-28 03:18:33,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:33,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:18:33,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:33,193 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:18:33,193 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:18:33,193 INFO L87 Difference]: Start difference. First operand 99 states and 125 transitions. Second operand has 7 states, 5 states have (on average 2.6) internal successors, (13), 7 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 03:18:33,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:33,511 INFO L93 Difference]: Finished difference Result 114 states and 138 transitions. [2024-11-28 03:18:33,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:18:33,512 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.6) internal successors, (13), 7 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 25 [2024-11-28 03:18:33,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:33,514 INFO L225 Difference]: With dead ends: 114 [2024-11-28 03:18:33,515 INFO L226 Difference]: Without dead ends: 113 [2024-11-28 03:18:33,516 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:18:33,517 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 135 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:33,517 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 121 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:18:33,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-28 03:18:33,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 102. [2024-11-28 03:18:33,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 65 states have (on average 1.6) internal successors, (104), 88 states have internal predecessors, (104), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 03:18:33,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 128 transitions. [2024-11-28 03:18:33,549 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 128 transitions. Word has length 25 [2024-11-28 03:18:33,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:33,549 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 128 transitions. [2024-11-28 03:18:33,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.6) internal successors, (13), 7 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 03:18:33,550 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 128 transitions. [2024-11-28 03:18:33,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-28 03:18:33,552 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:33,552 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:33,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:18:33,552 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:18:33,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:33,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1829040960, now seen corresponding path program 1 times [2024-11-28 03:18:33,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:33,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82790795] [2024-11-28 03:18:33,555 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:33,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:33,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:33,717 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 03:18:33,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:33,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82790795] [2024-11-28 03:18:33,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82790795] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:33,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:33,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:18:33,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000163682] [2024-11-28 03:18:33,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:33,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:18:33,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:33,720 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:18:33,720 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:18:33,721 INFO L87 Difference]: Start difference. First operand 102 states and 128 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 03:18:34,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:34,075 INFO L93 Difference]: Finished difference Result 113 states and 140 transitions. [2024-11-28 03:18:34,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:18:34,076 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 26 [2024-11-28 03:18:34,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:34,077 INFO L225 Difference]: With dead ends: 113 [2024-11-28 03:18:34,077 INFO L226 Difference]: Without dead ends: 112 [2024-11-28 03:18:34,077 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:18:34,078 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 49 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:34,078 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 148 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:18:34,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-28 03:18:34,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 107. [2024-11-28 03:18:34,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 70 states have (on average 1.542857142857143) internal successors, (108), 93 states have internal predecessors, (108), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 03:18:34,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 132 transitions. [2024-11-28 03:18:34,111 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 132 transitions. Word has length 26 [2024-11-28 03:18:34,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:34,112 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 132 transitions. [2024-11-28 03:18:34,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 03:18:34,112 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 132 transitions. [2024-11-28 03:18:34,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-28 03:18:34,113 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:34,113 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:34,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:18:34,113 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:18:34,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:34,114 INFO L85 PathProgramCache]: Analyzing trace with hash 592159565, now seen corresponding path program 1 times [2024-11-28 03:18:34,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:34,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16801997] [2024-11-28 03:18:34,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:34,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:34,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:18:34,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [850508817] [2024-11-28 03:18:34,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:34,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:18:34,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:18:34,140 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:18:34,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:18:34,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:34,212 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:18:34,214 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:18:34,344 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-28 03:18:34,344 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:18:34,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:34,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16801997] [2024-11-28 03:18:34,345 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:18:34,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [850508817] [2024-11-28 03:18:34,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [850508817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:34,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:34,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:18:34,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761424761] [2024-11-28 03:18:34,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:34,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:18:34,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:34,346 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:18:34,346 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:18:34,347 INFO L87 Difference]: Start difference. First operand 107 states and 132 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:18:34,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:34,471 INFO L93 Difference]: Finished difference Result 118 states and 147 transitions. [2024-11-28 03:18:34,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:18:34,472 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 37 [2024-11-28 03:18:34,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:34,473 INFO L225 Difference]: With dead ends: 118 [2024-11-28 03:18:34,473 INFO L226 Difference]: Without dead ends: 108 [2024-11-28 03:18:34,473 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:18:34,474 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 45 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:34,475 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 86 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:18:34,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-28 03:18:34,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2024-11-28 03:18:34,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 73 states have (on average 1.452054794520548) internal successors, (106), 92 states have internal predecessors, (106), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-28 03:18:34,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 134 transitions. [2024-11-28 03:18:34,491 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 134 transitions. Word has length 37 [2024-11-28 03:18:34,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:34,492 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 134 transitions. [2024-11-28 03:18:34,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:18:34,492 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 134 transitions. [2024-11-28 03:18:34,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-28 03:18:34,493 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:34,493 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:34,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 03:18:34,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:18:34,694 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:18:34,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:34,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1177077384, now seen corresponding path program 1 times [2024-11-28 03:18:34,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:34,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984187350] [2024-11-28 03:18:34,694 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:34,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:34,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:18:34,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1700260468] [2024-11-28 03:18:34,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:34,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:18:34,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:18:34,724 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:18:34,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 03:18:34,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:34,775 INFO L256 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:18:34,776 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:18:34,927 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-28 03:18:34,929 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:18:35,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:35,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984187350] [2024-11-28 03:18:35,227 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:18:35,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700260468] [2024-11-28 03:18:35,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1700260468] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:18:35,227 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:18:35,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2024-11-28 03:18:35,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907491229] [2024-11-28 03:18:35,228 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:18:35,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:18:35,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:35,229 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:18:35,229 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:18:35,229 INFO L87 Difference]: Start difference. First operand 108 states and 134 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:18:35,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:35,408 INFO L93 Difference]: Finished difference Result 179 states and 234 transitions. [2024-11-28 03:18:35,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:18:35,409 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 38 [2024-11-28 03:18:35,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:35,411 INFO L225 Difference]: With dead ends: 179 [2024-11-28 03:18:35,411 INFO L226 Difference]: Without dead ends: 175 [2024-11-28 03:18:35,411 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:18:35,414 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 56 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:35,415 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 96 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:18:35,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-11-28 03:18:35,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 163. [2024-11-28 03:18:35,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 119 states have (on average 1.4621848739495797) internal successors, (174), 138 states have internal predecessors, (174), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 03:18:35,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 220 transitions. [2024-11-28 03:18:35,440 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 220 transitions. Word has length 38 [2024-11-28 03:18:35,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:35,441 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 220 transitions. [2024-11-28 03:18:35,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:18:35,441 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 220 transitions. [2024-11-28 03:18:35,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-28 03:18:35,443 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:35,443 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:35,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 03:18:35,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-28 03:18:35,644 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:18:35,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:35,644 INFO L85 PathProgramCache]: Analyzing trace with hash -607840927, now seen corresponding path program 1 times [2024-11-28 03:18:35,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:35,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408256252] [2024-11-28 03:18:35,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:35,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:35,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:35,884 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-28 03:18:35,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:35,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408256252] [2024-11-28 03:18:35,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408256252] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:35,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:35,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:18:35,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127990201] [2024-11-28 03:18:35,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:35,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:18:35,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:35,886 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:18:35,888 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:18:35,889 INFO L87 Difference]: Start difference. First operand 163 states and 220 transitions. Second operand has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:18:36,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:36,150 INFO L93 Difference]: Finished difference Result 175 states and 232 transitions. [2024-11-28 03:18:36,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:18:36,151 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 42 [2024-11-28 03:18:36,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:36,152 INFO L225 Difference]: With dead ends: 175 [2024-11-28 03:18:36,152 INFO L226 Difference]: Without dead ends: 174 [2024-11-28 03:18:36,153 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:18:36,153 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 165 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:36,154 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 136 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:18:36,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-11-28 03:18:36,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 164. [2024-11-28 03:18:36,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 120 states have (on average 1.4583333333333333) internal successors, (175), 139 states have internal predecessors, (175), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 03:18:36,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 221 transitions. [2024-11-28 03:18:36,175 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 221 transitions. Word has length 42 [2024-11-28 03:18:36,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:36,176 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 221 transitions. [2024-11-28 03:18:36,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:18:36,176 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 221 transitions. [2024-11-28 03:18:36,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-28 03:18:36,177 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:36,177 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:36,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:18:36,177 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:18:36,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:36,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1663199424, now seen corresponding path program 1 times [2024-11-28 03:18:36,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:36,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329723480] [2024-11-28 03:18:36,178 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:36,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:36,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:36,284 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-28 03:18:36,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:36,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329723480] [2024-11-28 03:18:36,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329723480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:36,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:36,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:18:36,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630867457] [2024-11-28 03:18:36,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:36,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:18:36,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:36,286 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:18:36,286 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:18:36,286 INFO L87 Difference]: Start difference. First operand 164 states and 221 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:18:36,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:36,416 INFO L93 Difference]: Finished difference Result 169 states and 225 transitions. [2024-11-28 03:18:36,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:18:36,417 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 43 [2024-11-28 03:18:36,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:36,419 INFO L225 Difference]: With dead ends: 169 [2024-11-28 03:18:36,419 INFO L226 Difference]: Without dead ends: 155 [2024-11-28 03:18:36,420 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:18:36,420 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 4 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:36,420 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 105 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:18:36,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-11-28 03:18:36,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2024-11-28 03:18:36,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 113 states have (on average 1.4778761061946903) internal successors, (167), 132 states have internal predecessors, (167), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-28 03:18:36,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 209 transitions. [2024-11-28 03:18:36,447 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 209 transitions. Word has length 43 [2024-11-28 03:18:36,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:36,447 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 209 transitions. [2024-11-28 03:18:36,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:18:36,447 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 209 transitions. [2024-11-28 03:18:36,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-28 03:18:36,449 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:36,449 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:36,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:18:36,450 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:18:36,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:36,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1372390431, now seen corresponding path program 1 times [2024-11-28 03:18:36,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:36,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643294447] [2024-11-28 03:18:36,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:36,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:36,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:36,564 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 03:18:36,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:36,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643294447] [2024-11-28 03:18:36,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643294447] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:18:36,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2002193010] [2024-11-28 03:18:36,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:36,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:18:36,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:18:36,567 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:18:36,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 03:18:36,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:36,622 INFO L256 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:18:36,624 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:18:36,679 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 03:18:36,680 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:18:36,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2002193010] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:36,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:18:36,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-28 03:18:36,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245635458] [2024-11-28 03:18:36,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:36,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:18:36,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:36,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:18:36,681 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:18:36,682 INFO L87 Difference]: Start difference. First operand 155 states and 209 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 03:18:36,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:36,804 INFO L93 Difference]: Finished difference Result 235 states and 326 transitions. [2024-11-28 03:18:36,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:18:36,805 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 45 [2024-11-28 03:18:36,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:36,807 INFO L225 Difference]: With dead ends: 235 [2024-11-28 03:18:36,808 INFO L226 Difference]: Without dead ends: 233 [2024-11-28 03:18:36,808 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:18:36,809 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 42 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:36,810 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 122 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:18:36,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2024-11-28 03:18:36,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 212. [2024-11-28 03:18:36,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 163 states have (on average 1.4846625766871167) internal successors, (242), 181 states have internal predecessors, (242), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-28 03:18:36,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 300 transitions. [2024-11-28 03:18:36,843 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 300 transitions. Word has length 45 [2024-11-28 03:18:36,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:36,844 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 300 transitions. [2024-11-28 03:18:36,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 03:18:36,844 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 300 transitions. [2024-11-28 03:18:36,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-28 03:18:36,846 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:36,846 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:36,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 03:18:37,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-28 03:18:37,047 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:18:37,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:37,047 INFO L85 PathProgramCache]: Analyzing trace with hash 405569662, now seen corresponding path program 1 times [2024-11-28 03:18:37,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:37,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500164500] [2024-11-28 03:18:37,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:37,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:37,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:37,122 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 03:18:37,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:37,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500164500] [2024-11-28 03:18:37,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500164500] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:18:37,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581574588] [2024-11-28 03:18:37,122 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:37,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:18:37,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:18:37,125 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:18:37,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 03:18:37,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:37,190 INFO L256 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:18:37,192 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:18:37,254 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 03:18:37,254 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:18:37,344 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 03:18:37,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [581574588] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:18:37,344 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:18:37,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-28 03:18:37,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893048732] [2024-11-28 03:18:37,345 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:18:37,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:18:37,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:37,346 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:18:37,346 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:18:37,346 INFO L87 Difference]: Start difference. First operand 212 states and 300 transitions. Second operand has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-28 03:18:37,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:37,600 INFO L93 Difference]: Finished difference Result 351 states and 490 transitions. [2024-11-28 03:18:37,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:18:37,601 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 46 [2024-11-28 03:18:37,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:37,604 INFO L225 Difference]: With dead ends: 351 [2024-11-28 03:18:37,604 INFO L226 Difference]: Without dead ends: 349 [2024-11-28 03:18:37,604 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:18:37,605 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 131 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:37,605 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 196 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:18:37,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2024-11-28 03:18:37,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 304. [2024-11-28 03:18:37,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 239 states have (on average 1.4853556485355648) internal successors, (355), 257 states have internal predecessors, (355), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-28 03:18:37,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 445 transitions. [2024-11-28 03:18:37,645 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 445 transitions. Word has length 46 [2024-11-28 03:18:37,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:37,645 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 445 transitions. [2024-11-28 03:18:37,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-28 03:18:37,645 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 445 transitions. [2024-11-28 03:18:37,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-28 03:18:37,646 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:37,646 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:37,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-28 03:18:37,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-28 03:18:37,850 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:18:37,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:37,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1090869602, now seen corresponding path program 1 times [2024-11-28 03:18:37,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:37,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518987896] [2024-11-28 03:18:37,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:37,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:37,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:18:37,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1139257934] [2024-11-28 03:18:37,868 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:37,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:18:37,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:18:37,870 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:18:37,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 03:18:37,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:37,934 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:18:37,936 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:18:38,066 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-28 03:18:38,067 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:18:38,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:38,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518987896] [2024-11-28 03:18:38,067 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:18:38,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1139257934] [2024-11-28 03:18:38,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1139257934] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:38,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:38,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:18:38,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834317446] [2024-11-28 03:18:38,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:38,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:18:38,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:38,070 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:18:38,070 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:18:38,071 INFO L87 Difference]: Start difference. First operand 304 states and 445 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 03:18:38,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:38,245 INFO L93 Difference]: Finished difference Result 323 states and 470 transitions. [2024-11-28 03:18:38,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:18:38,246 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 48 [2024-11-28 03:18:38,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:38,250 INFO L225 Difference]: With dead ends: 323 [2024-11-28 03:18:38,251 INFO L226 Difference]: Without dead ends: 317 [2024-11-28 03:18:38,251 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:18:38,254 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 97 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:38,254 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 82 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:18:38,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2024-11-28 03:18:38,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 301. [2024-11-28 03:18:38,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 236 states have (on average 1.4533898305084745) internal successors, (343), 254 states have internal predecessors, (343), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-28 03:18:38,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 433 transitions. [2024-11-28 03:18:38,298 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 433 transitions. Word has length 48 [2024-11-28 03:18:38,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:38,298 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 433 transitions. [2024-11-28 03:18:38,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 03:18:38,299 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 433 transitions. [2024-11-28 03:18:38,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-28 03:18:38,301 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:38,301 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-28 03:18:38,312 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 03:18:38,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-28 03:18:38,506 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:18:38,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:38,507 INFO L85 PathProgramCache]: Analyzing trace with hash -2109317914, now seen corresponding path program 2 times [2024-11-28 03:18:38,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:38,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299032684] [2024-11-28 03:18:38,507 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:18:38,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:38,533 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:18:38,533 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 03:18:38,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [153110374] [2024-11-28 03:18:38,535 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:18:38,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:18:38,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:18:38,537 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:18:38,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 03:18:38,620 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:18:38,620 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:18:38,622 INFO L256 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:18:38,624 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:18:38,810 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-28 03:18:38,810 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:18:39,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:39,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299032684] [2024-11-28 03:18:39,051 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:18:39,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [153110374] [2024-11-28 03:18:39,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [153110374] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:18:39,051 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:18:39,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-28 03:18:39,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811122287] [2024-11-28 03:18:39,052 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:18:39,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:18:39,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:39,053 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:18:39,053 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:18:39,053 INFO L87 Difference]: Start difference. First operand 301 states and 433 transitions. Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 03:18:39,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:39,315 INFO L93 Difference]: Finished difference Result 390 states and 558 transitions. [2024-11-28 03:18:39,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:18:39,315 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 60 [2024-11-28 03:18:39,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:39,318 INFO L225 Difference]: With dead ends: 390 [2024-11-28 03:18:39,318 INFO L226 Difference]: Without dead ends: 386 [2024-11-28 03:18:39,320 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:18:39,322 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 73 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:39,322 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 128 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:18:39,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2024-11-28 03:18:39,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 301. [2024-11-28 03:18:39,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 236 states have (on average 1.444915254237288) internal successors, (341), 254 states have internal predecessors, (341), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-28 03:18:39,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 431 transitions. [2024-11-28 03:18:39,362 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 431 transitions. Word has length 60 [2024-11-28 03:18:39,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:39,363 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 431 transitions. [2024-11-28 03:18:39,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 03:18:39,363 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 431 transitions. [2024-11-28 03:18:39,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-28 03:18:39,365 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:39,365 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:39,376 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-28 03:18:39,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:18:39,566 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:18:39,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:39,567 INFO L85 PathProgramCache]: Analyzing trace with hash -2016919354, now seen corresponding path program 1 times [2024-11-28 03:18:39,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:39,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336832838] [2024-11-28 03:18:39,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:39,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:39,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:39,705 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-28 03:18:39,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:39,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336832838] [2024-11-28 03:18:39,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336832838] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:39,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:39,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:18:39,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623413586] [2024-11-28 03:18:39,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:39,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:18:39,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:39,707 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:18:39,708 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:18:39,708 INFO L87 Difference]: Start difference. First operand 301 states and 431 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 03:18:39,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:39,822 INFO L93 Difference]: Finished difference Result 301 states and 431 transitions. [2024-11-28 03:18:39,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:18:39,822 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 67 [2024-11-28 03:18:39,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:39,825 INFO L225 Difference]: With dead ends: 301 [2024-11-28 03:18:39,825 INFO L226 Difference]: Without dead ends: 300 [2024-11-28 03:18:39,827 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:18:39,828 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 2 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:39,828 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 95 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:18:39,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2024-11-28 03:18:39,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300. [2024-11-28 03:18:39,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 236 states have (on average 1.4194915254237288) internal successors, (335), 253 states have internal predecessors, (335), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-28 03:18:39,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 425 transitions. [2024-11-28 03:18:39,869 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 425 transitions. Word has length 67 [2024-11-28 03:18:39,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:39,869 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 425 transitions. [2024-11-28 03:18:39,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 03:18:39,869 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 425 transitions. [2024-11-28 03:18:39,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-28 03:18:39,870 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:39,870 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:39,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 03:18:39,871 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:18:39,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:39,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1900009577, now seen corresponding path program 1 times [2024-11-28 03:18:39,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:39,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484406717] [2024-11-28 03:18:39,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:39,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:39,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:40,152 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-28 03:18:40,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:40,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484406717] [2024-11-28 03:18:40,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484406717] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:18:40,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582561786] [2024-11-28 03:18:40,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:40,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:18:40,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:18:40,157 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:18:40,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 03:18:40,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:40,227 INFO L256 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 03:18:40,229 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:18:40,460 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-28 03:18:40,460 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:18:40,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [582561786] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:40,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:18:40,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-28 03:18:40,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071577487] [2024-11-28 03:18:40,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:40,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:18:40,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:40,462 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:18:40,462 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:18:40,462 INFO L87 Difference]: Start difference. First operand 300 states and 425 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:18:40,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:40,646 INFO L93 Difference]: Finished difference Result 318 states and 440 transitions. [2024-11-28 03:18:40,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:18:40,647 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 68 [2024-11-28 03:18:40,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:40,649 INFO L225 Difference]: With dead ends: 318 [2024-11-28 03:18:40,649 INFO L226 Difference]: Without dead ends: 317 [2024-11-28 03:18:40,650 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:18:40,650 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 119 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:40,651 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 122 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:18:40,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2024-11-28 03:18:40,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 300. [2024-11-28 03:18:40,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 236 states have (on average 1.4067796610169492) internal successors, (332), 253 states have internal predecessors, (332), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-28 03:18:40,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 422 transitions. [2024-11-28 03:18:40,704 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 422 transitions. Word has length 68 [2024-11-28 03:18:40,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:40,704 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 422 transitions. [2024-11-28 03:18:40,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:18:40,704 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 422 transitions. [2024-11-28 03:18:40,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-28 03:18:40,705 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:40,706 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:40,715 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-28 03:18:40,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:18:40,906 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:18:40,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:40,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1229245144, now seen corresponding path program 1 times [2024-11-28 03:18:40,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:40,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750992505] [2024-11-28 03:18:40,907 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:40,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:40,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:41,187 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-28 03:18:41,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:41,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750992505] [2024-11-28 03:18:41,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750992505] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:18:41,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [448520317] [2024-11-28 03:18:41,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:41,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:18:41,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:18:41,192 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:18:41,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 03:18:41,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:41,267 INFO L256 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:18:41,268 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:18:41,530 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-28 03:18:41,530 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:18:41,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [448520317] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:41,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:18:41,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-28 03:18:41,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605672652] [2024-11-28 03:18:41,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:41,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:18:41,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:41,531 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:18:41,532 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:18:41,533 INFO L87 Difference]: Start difference. First operand 300 states and 422 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 03:18:41,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:41,724 INFO L93 Difference]: Finished difference Result 319 states and 443 transitions. [2024-11-28 03:18:41,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:18:41,725 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 69 [2024-11-28 03:18:41,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:41,727 INFO L225 Difference]: With dead ends: 319 [2024-11-28 03:18:41,727 INFO L226 Difference]: Without dead ends: 318 [2024-11-28 03:18:41,727 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 66 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:18:41,728 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 59 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:41,728 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 92 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:18:41,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2024-11-28 03:18:41,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 309. [2024-11-28 03:18:41,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 245 states have (on average 1.3918367346938776) internal successors, (341), 262 states have internal predecessors, (341), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-28 03:18:41,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 431 transitions. [2024-11-28 03:18:41,765 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 431 transitions. Word has length 69 [2024-11-28 03:18:41,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:41,766 INFO L471 AbstractCegarLoop]: Abstraction has 309 states and 431 transitions. [2024-11-28 03:18:41,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 03:18:41,766 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 431 transitions. [2024-11-28 03:18:41,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-28 03:18:41,767 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:41,767 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:41,775 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-28 03:18:41,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-28 03:18:41,971 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:18:41,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:41,972 INFO L85 PathProgramCache]: Analyzing trace with hash 548106315, now seen corresponding path program 1 times [2024-11-28 03:18:41,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:41,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333166220] [2024-11-28 03:18:41,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:41,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:41,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:42,160 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-28 03:18:42,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:42,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333166220] [2024-11-28 03:18:42,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333166220] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:18:42,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494041535] [2024-11-28 03:18:42,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:42,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:18:42,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:18:42,163 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:18:42,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 03:18:42,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:42,221 INFO L256 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:18:42,223 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:18:42,411 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-28 03:18:42,411 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:18:42,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [494041535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:42,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:18:42,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-28 03:18:42,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100614458] [2024-11-28 03:18:42,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:42,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:18:42,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:42,413 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:18:42,413 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:18:42,413 INFO L87 Difference]: Start difference. First operand 309 states and 431 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 03:18:42,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:42,519 INFO L93 Difference]: Finished difference Result 318 states and 437 transitions. [2024-11-28 03:18:42,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:18:42,520 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 70 [2024-11-28 03:18:42,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:42,521 INFO L225 Difference]: With dead ends: 318 [2024-11-28 03:18:42,522 INFO L226 Difference]: Without dead ends: 316 [2024-11-28 03:18:42,522 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:18:42,522 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 30 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:42,523 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 75 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:18:42,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2024-11-28 03:18:42,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 312. [2024-11-28 03:18:42,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 248 states have (on average 1.3588709677419355) internal successors, (337), 265 states have internal predecessors, (337), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-28 03:18:42,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 427 transitions. [2024-11-28 03:18:42,561 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 427 transitions. Word has length 70 [2024-11-28 03:18:42,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:42,561 INFO L471 AbstractCegarLoop]: Abstraction has 312 states and 427 transitions. [2024-11-28 03:18:42,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 03:18:42,562 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 427 transitions. [2024-11-28 03:18:42,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-28 03:18:42,563 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:42,563 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:42,572 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-28 03:18:42,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-28 03:18:42,764 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:18:42,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:42,764 INFO L85 PathProgramCache]: Analyzing trace with hash -188573340, now seen corresponding path program 1 times [2024-11-28 03:18:42,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:42,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671859821] [2024-11-28 03:18:42,765 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:42,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:42,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:18:42,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2136031624] [2024-11-28 03:18:42,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:42,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:18:42,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:18:42,790 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:18:42,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 03:18:42,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:42,851 INFO L256 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 03:18:42,853 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:18:43,208 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-28 03:18:43,209 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:18:44,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:44,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671859821] [2024-11-28 03:18:44,016 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:18:44,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2136031624] [2024-11-28 03:18:44,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2136031624] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:18:44,016 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:18:44,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-28 03:18:44,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320546658] [2024-11-28 03:18:44,017 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:18:44,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:18:44,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:44,018 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:18:44,018 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:18:44,018 INFO L87 Difference]: Start difference. First operand 312 states and 427 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 03:18:44,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:44,225 INFO L93 Difference]: Finished difference Result 390 states and 547 transitions. [2024-11-28 03:18:44,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:18:44,226 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 71 [2024-11-28 03:18:44,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:44,228 INFO L225 Difference]: With dead ends: 390 [2024-11-28 03:18:44,228 INFO L226 Difference]: Without dead ends: 389 [2024-11-28 03:18:44,229 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:18:44,229 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 74 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:44,230 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 85 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:18:44,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2024-11-28 03:18:44,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 366. [2024-11-28 03:18:44,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 296 states have (on average 1.3783783783783783) internal successors, (408), 313 states have internal predecessors, (408), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-28 03:18:44,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 510 transitions. [2024-11-28 03:18:44,281 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 510 transitions. Word has length 71 [2024-11-28 03:18:44,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:44,282 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 510 transitions. [2024-11-28 03:18:44,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 03:18:44,282 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 510 transitions. [2024-11-28 03:18:44,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-28 03:18:44,283 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:44,283 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:44,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-28 03:18:44,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:18:44,484 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:18:44,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:44,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1550806163, now seen corresponding path program 1 times [2024-11-28 03:18:44,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:44,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048642300] [2024-11-28 03:18:44,485 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:44,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:44,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:18:44,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [449100715] [2024-11-28 03:18:44,510 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:44,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:18:44,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:18:44,513 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:18:44,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 03:18:44,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:44,590 INFO L256 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 03:18:44,592 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:18:44,866 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-28 03:18:44,866 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:18:45,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:45,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048642300] [2024-11-28 03:18:45,507 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:18:45,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [449100715] [2024-11-28 03:18:45,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [449100715] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:18:45,507 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:18:45,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-28 03:18:45,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853817962] [2024-11-28 03:18:45,507 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:18:45,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:18:45,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:45,508 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:18:45,508 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:18:45,508 INFO L87 Difference]: Start difference. First operand 366 states and 510 transitions. Second operand has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 03:18:45,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:45,639 INFO L93 Difference]: Finished difference Result 370 states and 510 transitions. [2024-11-28 03:18:45,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:18:45,639 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 72 [2024-11-28 03:18:45,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:45,642 INFO L225 Difference]: With dead ends: 370 [2024-11-28 03:18:45,642 INFO L226 Difference]: Without dead ends: 367 [2024-11-28 03:18:45,642 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:18:45,643 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 51 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:45,643 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 69 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:18:45,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2024-11-28 03:18:45,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 364. [2024-11-28 03:18:45,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 296 states have (on average 1.3006756756756757) internal successors, (385), 311 states have internal predecessors, (385), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-28 03:18:45,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 487 transitions. [2024-11-28 03:18:45,695 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 487 transitions. Word has length 72 [2024-11-28 03:18:45,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:45,696 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 487 transitions. [2024-11-28 03:18:45,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 03:18:45,696 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 487 transitions. [2024-11-28 03:18:45,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-28 03:18:45,697 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:45,697 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:45,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-28 03:18:45,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:18:45,902 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:18:45,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:45,902 INFO L85 PathProgramCache]: Analyzing trace with hash -830350714, now seen corresponding path program 1 times [2024-11-28 03:18:45,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:45,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671726658] [2024-11-28 03:18:45,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:45,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:45,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:45,984 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-28 03:18:45,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:45,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671726658] [2024-11-28 03:18:45,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671726658] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:45,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:45,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:18:45,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454155027] [2024-11-28 03:18:45,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:45,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:18:45,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:45,986 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:18:45,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:18:45,986 INFO L87 Difference]: Start difference. First operand 364 states and 487 transitions. Second operand has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 03:18:46,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:46,256 INFO L93 Difference]: Finished difference Result 366 states and 487 transitions. [2024-11-28 03:18:46,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:18:46,257 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 73 [2024-11-28 03:18:46,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:46,258 INFO L225 Difference]: With dead ends: 366 [2024-11-28 03:18:46,259 INFO L226 Difference]: Without dead ends: 365 [2024-11-28 03:18:46,259 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:18:46,260 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 47 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:46,260 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 136 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:18:46,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2024-11-28 03:18:46,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 363. [2024-11-28 03:18:46,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 296 states have (on average 1.2702702702702702) internal successors, (376), 310 states have internal predecessors, (376), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-28 03:18:46,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 478 transitions. [2024-11-28 03:18:46,313 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 478 transitions. Word has length 73 [2024-11-28 03:18:46,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:46,313 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 478 transitions. [2024-11-28 03:18:46,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 03:18:46,313 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 478 transitions. [2024-11-28 03:18:46,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-28 03:18:46,314 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:46,314 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:46,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 03:18:46,315 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:18:46,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:46,315 INFO L85 PathProgramCache]: Analyzing trace with hash 28931727, now seen corresponding path program 1 times [2024-11-28 03:18:46,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:46,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793289762] [2024-11-28 03:18:46,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:46,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:46,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:46,562 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-28 03:18:46,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:46,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793289762] [2024-11-28 03:18:46,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793289762] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:18:46,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599004041] [2024-11-28 03:18:46,563 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:46,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:18:46,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:18:46,567 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:18:46,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 03:18:46,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:46,640 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 03:18:46,642 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:18:47,149 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-28 03:18:47,150 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:18:48,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [599004041] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:18:48,068 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:18:48,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-11-28 03:18:48,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860162692] [2024-11-28 03:18:48,069 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:18:48,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 03:18:48,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:48,070 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 03:18:48,070 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2024-11-28 03:18:48,071 INFO L87 Difference]: Start difference. First operand 363 states and 478 transitions. Second operand has 16 states, 15 states have (on average 4.533333333333333) internal successors, (68), 16 states have internal predecessors, (68), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-11-28 03:18:49,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:49,708 INFO L93 Difference]: Finished difference Result 645 states and 870 transitions. [2024-11-28 03:18:49,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-28 03:18:49,709 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.533333333333333) internal successors, (68), 16 states have internal predecessors, (68), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 74 [2024-11-28 03:18:49,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:49,714 INFO L225 Difference]: With dead ends: 645 [2024-11-28 03:18:49,714 INFO L226 Difference]: Without dead ends: 640 [2024-11-28 03:18:49,716 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=307, Invalid=1099, Unknown=0, NotChecked=0, Total=1406 [2024-11-28 03:18:49,719 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 413 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:49,719 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [415 Valid, 260 Invalid, 861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 03:18:49,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2024-11-28 03:18:49,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 490. [2024-11-28 03:18:49,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 407 states have (on average 1.2604422604422605) internal successors, (513), 421 states have internal predecessors, (513), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-28 03:18:49,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 647 transitions. [2024-11-28 03:18:49,798 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 647 transitions. Word has length 74 [2024-11-28 03:18:49,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:49,799 INFO L471 AbstractCegarLoop]: Abstraction has 490 states and 647 transitions. [2024-11-28 03:18:49,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.533333333333333) internal successors, (68), 16 states have internal predecessors, (68), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-11-28 03:18:49,799 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 647 transitions. [2024-11-28 03:18:49,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-28 03:18:49,802 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:49,803 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:49,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-28 03:18:50,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-28 03:18:50,008 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:18:50,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:50,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1614968462, now seen corresponding path program 1 times [2024-11-28 03:18:50,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:50,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579388803] [2024-11-28 03:18:50,009 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:50,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:50,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:18:50,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1152539837] [2024-11-28 03:18:50,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:50,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:18:50,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:18:50,040 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:18:50,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 03:18:50,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:50,115 INFO L256 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-28 03:18:50,118 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:18:50,490 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 3 proven. 39 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-11-28 03:18:50,490 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:18:51,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:51,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579388803] [2024-11-28 03:18:51,133 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:18:51,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152539837] [2024-11-28 03:18:51,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152539837] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:18:51,134 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:18:51,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 03:18:51,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422325341] [2024-11-28 03:18:51,134 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:18:51,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:18:51,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:51,135 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:18:51,135 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:18:51,135 INFO L87 Difference]: Start difference. First operand 490 states and 647 transitions. Second operand has 11 states, 9 states have (on average 4.888888888888889) internal successors, (44), 11 states have internal predecessors, (44), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-28 03:18:51,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:51,650 INFO L93 Difference]: Finished difference Result 510 states and 659 transitions. [2024-11-28 03:18:51,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:18:51,651 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 4.888888888888889) internal successors, (44), 11 states have internal predecessors, (44), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 88 [2024-11-28 03:18:51,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:51,654 INFO L225 Difference]: With dead ends: 510 [2024-11-28 03:18:51,654 INFO L226 Difference]: Without dead ends: 395 [2024-11-28 03:18:51,656 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:18:51,657 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 16 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:51,657 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 156 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:18:51,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2024-11-28 03:18:51,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 393. [2024-11-28 03:18:51,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 322 states have (on average 1.2484472049689441) internal successors, (402), 336 states have internal predecessors, (402), 55 states have call successors, (55), 1 states have call predecessors, (55), 1 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-28 03:18:51,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 512 transitions. [2024-11-28 03:18:51,707 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 512 transitions. Word has length 88 [2024-11-28 03:18:51,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:51,707 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 512 transitions. [2024-11-28 03:18:51,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 4.888888888888889) internal successors, (44), 11 states have internal predecessors, (44), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-28 03:18:51,708 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 512 transitions. [2024-11-28 03:18:51,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-28 03:18:51,711 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:51,711 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:51,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-28 03:18:51,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:18:51,912 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:18:51,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:51,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1501502128, now seen corresponding path program 1 times [2024-11-28 03:18:51,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:51,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449584498] [2024-11-28 03:18:51,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:51,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:51,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:52,004 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-11-28 03:18:52,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:52,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449584498] [2024-11-28 03:18:52,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449584498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:52,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:52,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:18:52,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590364457] [2024-11-28 03:18:52,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:52,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:18:52,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:52,006 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:18:52,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:18:52,007 INFO L87 Difference]: Start difference. First operand 393 states and 512 transitions. Second operand has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 03:18:52,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:52,206 INFO L93 Difference]: Finished difference Result 395 states and 512 transitions. [2024-11-28 03:18:52,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:18:52,207 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 90 [2024-11-28 03:18:52,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:52,208 INFO L225 Difference]: With dead ends: 395 [2024-11-28 03:18:52,209 INFO L226 Difference]: Without dead ends: 364 [2024-11-28 03:18:52,209 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:18:52,210 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 22 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:52,210 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 176 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:18:52,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2024-11-28 03:18:52,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 362. [2024-11-28 03:18:52,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 296 states have (on average 1.2635135135135136) internal successors, (374), 309 states have internal predecessors, (374), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-28 03:18:52,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 476 transitions. [2024-11-28 03:18:52,255 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 476 transitions. Word has length 90 [2024-11-28 03:18:52,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:52,255 INFO L471 AbstractCegarLoop]: Abstraction has 362 states and 476 transitions. [2024-11-28 03:18:52,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 03:18:52,256 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 476 transitions. [2024-11-28 03:18:52,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-28 03:18:52,257 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:52,257 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1] [2024-11-28 03:18:52,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 03:18:52,258 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:18:52,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:52,258 INFO L85 PathProgramCache]: Analyzing trace with hash 220117084, now seen corresponding path program 1 times [2024-11-28 03:18:52,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:52,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97197298] [2024-11-28 03:18:52,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:52,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:52,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:52,398 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-28 03:18:52,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:52,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97197298] [2024-11-28 03:18:52,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97197298] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:18:52,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571742231] [2024-11-28 03:18:52,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:52,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:18:52,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:18:52,401 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:18:52,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-28 03:18:52,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:52,479 INFO L256 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:18:52,482 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:18:52,564 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-28 03:18:52,564 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:18:52,721 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-28 03:18:52,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [571742231] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:18:52,722 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:18:52,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-28 03:18:52,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173025382] [2024-11-28 03:18:52,722 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:18:52,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:18:52,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:52,723 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:18:52,723 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:18:52,724 INFO L87 Difference]: Start difference. First operand 362 states and 476 transitions. Second operand has 11 states, 10 states have (on average 7.2) internal successors, (72), 11 states have internal predecessors, (72), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) [2024-11-28 03:18:53,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:53,135 INFO L93 Difference]: Finished difference Result 741 states and 972 transitions. [2024-11-28 03:18:53,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:18:53,137 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.2) internal successors, (72), 11 states have internal predecessors, (72), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) Word has length 92 [2024-11-28 03:18:53,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:53,140 INFO L225 Difference]: With dead ends: 741 [2024-11-28 03:18:53,140 INFO L226 Difference]: Without dead ends: 739 [2024-11-28 03:18:53,141 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:18:53,141 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 244 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:53,141 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 297 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:18:53,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2024-11-28 03:18:53,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 500. [2024-11-28 03:18:53,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 410 states have (on average 1.2682926829268293) internal successors, (520), 423 states have internal predecessors, (520), 75 states have call successors, (75), 1 states have call predecessors, (75), 1 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-28 03:18:53,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 670 transitions. [2024-11-28 03:18:53,215 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 670 transitions. Word has length 92 [2024-11-28 03:18:53,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:53,215 INFO L471 AbstractCegarLoop]: Abstraction has 500 states and 670 transitions. [2024-11-28 03:18:53,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.2) internal successors, (72), 11 states have internal predecessors, (72), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) [2024-11-28 03:18:53,217 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 670 transitions. [2024-11-28 03:18:53,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-28 03:18:53,222 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:53,222 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:53,233 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-28 03:18:53,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:18:53,423 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:18:53,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:53,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1058818579, now seen corresponding path program 2 times [2024-11-28 03:18:53,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:53,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098293162] [2024-11-28 03:18:53,423 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:18:53,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:53,450 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:18:53,450 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 03:18:53,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1909163178] [2024-11-28 03:18:53,451 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:18:53,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:18:53,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:18:53,453 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:18:53,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-28 03:18:53,520 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:18:53,520 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:18:53,521 INFO L256 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-28 03:18:53,524 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:18:54,190 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-28 03:18:54,190 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:18:55,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:55,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098293162] [2024-11-28 03:18:55,640 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:18:55,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1909163178] [2024-11-28 03:18:55,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1909163178] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:18:55,640 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:18:55,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 03:18:55,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175856545] [2024-11-28 03:18:55,640 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:18:55,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:18:55,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:55,642 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:18:55,642 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:18:55,643 INFO L87 Difference]: Start difference. First operand 500 states and 670 transitions. Second operand has 12 states, 11 states have (on average 4.0) internal successors, (44), 12 states have internal predecessors, (44), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-28 03:18:56,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:56,406 INFO L93 Difference]: Finished difference Result 523 states and 699 transitions. [2024-11-28 03:18:56,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:18:56,407 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.0) internal successors, (44), 12 states have internal predecessors, (44), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 96 [2024-11-28 03:18:56,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:56,417 INFO L225 Difference]: With dead ends: 523 [2024-11-28 03:18:56,417 INFO L226 Difference]: Without dead ends: 522 [2024-11-28 03:18:56,418 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:18:56,418 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 28 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 840 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:56,419 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 246 Invalid, 841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 840 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:18:56,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2024-11-28 03:18:56,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 500. [2024-11-28 03:18:56,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 410 states have (on average 1.2658536585365854) internal successors, (519), 423 states have internal predecessors, (519), 75 states have call successors, (75), 1 states have call predecessors, (75), 1 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-28 03:18:56,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 669 transitions. [2024-11-28 03:18:56,476 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 669 transitions. Word has length 96 [2024-11-28 03:18:56,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:56,477 INFO L471 AbstractCegarLoop]: Abstraction has 500 states and 669 transitions. [2024-11-28 03:18:56,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.0) internal successors, (44), 12 states have internal predecessors, (44), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-28 03:18:56,477 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 669 transitions. [2024-11-28 03:18:56,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-28 03:18:56,479 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:56,479 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:56,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-28 03:18:56,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-28 03:18:56,684 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:18:56,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:56,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1269004652, now seen corresponding path program 2 times [2024-11-28 03:18:56,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:56,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329836146] [2024-11-28 03:18:56,684 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:18:56,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:56,702 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:18:56,702 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:18:56,879 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 03:18:56,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:56,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329836146] [2024-11-28 03:18:56,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329836146] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:18:56,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1880612535] [2024-11-28 03:18:56,880 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:18:56,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:18:56,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:18:56,882 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:18:56,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-28 03:18:56,952 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:18:56,953 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:18:56,955 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:18:56,957 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:18:57,059 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 22 proven. 9 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 03:18:57,059 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:18:57,268 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 22 proven. 9 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 03:18:57,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1880612535] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:18:57,269 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:18:57,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 8 [2024-11-28 03:18:57,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245145545] [2024-11-28 03:18:57,270 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:18:57,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:18:57,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:57,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:18:57,272 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:18:57,272 INFO L87 Difference]: Start difference. First operand 500 states and 669 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 6 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) [2024-11-28 03:18:57,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:57,467 INFO L93 Difference]: Finished difference Result 509 states and 675 transitions. [2024-11-28 03:18:57,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:18:57,468 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 6 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) Word has length 110 [2024-11-28 03:18:57,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:57,470 INFO L225 Difference]: With dead ends: 509 [2024-11-28 03:18:57,471 INFO L226 Difference]: Without dead ends: 502 [2024-11-28 03:18:57,471 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 215 SyntacticMatches, 4 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:18:57,472 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 47 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:57,472 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 221 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:18:57,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2024-11-28 03:18:57,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 500. [2024-11-28 03:18:57,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 410 states have (on average 1.2560975609756098) internal successors, (515), 423 states have internal predecessors, (515), 75 states have call successors, (75), 1 states have call predecessors, (75), 1 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-28 03:18:57,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 665 transitions. [2024-11-28 03:18:57,526 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 665 transitions. Word has length 110 [2024-11-28 03:18:57,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:57,527 INFO L471 AbstractCegarLoop]: Abstraction has 500 states and 665 transitions. [2024-11-28 03:18:57,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 6 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) [2024-11-28 03:18:57,527 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 665 transitions. [2024-11-28 03:18:57,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-28 03:18:57,528 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:57,528 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1] [2024-11-28 03:18:57,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-28 03:18:57,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-28 03:18:57,732 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:18:57,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:57,733 INFO L85 PathProgramCache]: Analyzing trace with hash 114113048, now seen corresponding path program 2 times [2024-11-28 03:18:57,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:57,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807092260] [2024-11-28 03:18:57,733 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:18:57,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:57,742 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:18:57,742 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:18:57,802 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 504 trivial. 0 not checked. [2024-11-28 03:18:57,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:57,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807092260] [2024-11-28 03:18:57,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807092260] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:18:57,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [902689855] [2024-11-28 03:18:57,802 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:18:57,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:18:57,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:18:57,805 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:18:57,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-28 03:18:57,855 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:18:57,855 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:18:57,856 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 03:18:57,858 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:18:57,972 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 504 trivial. 0 not checked. [2024-11-28 03:18:57,972 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:18:58,160 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 504 trivial. 0 not checked. [2024-11-28 03:18:58,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [902689855] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:18:58,160 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:18:58,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-28 03:18:58,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321019067] [2024-11-28 03:18:58,161 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:18:58,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:18:58,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:58,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:18:58,163 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:18:58,163 INFO L87 Difference]: Start difference. First operand 500 states and 665 transitions. Second operand has 11 states, 10 states have (on average 3.2) internal successors, (32), 11 states have internal predecessors, (32), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 03:18:58,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:58,446 INFO L93 Difference]: Finished difference Result 598 states and 815 transitions. [2024-11-28 03:18:58,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:18:58,447 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.2) internal successors, (32), 11 states have internal predecessors, (32), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 112 [2024-11-28 03:18:58,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:58,450 INFO L225 Difference]: With dead ends: 598 [2024-11-28 03:18:58,450 INFO L226 Difference]: Without dead ends: 596 [2024-11-28 03:18:58,450 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:18:58,451 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 278 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:58,451 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 197 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:18:58,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2024-11-28 03:18:58,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 402. [2024-11-28 03:18:58,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 326 states have (on average 1.2177914110429449) internal successors, (397), 337 states have internal predecessors, (397), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-28 03:18:58,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 523 transitions. [2024-11-28 03:18:58,503 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 523 transitions. Word has length 112 [2024-11-28 03:18:58,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:58,504 INFO L471 AbstractCegarLoop]: Abstraction has 402 states and 523 transitions. [2024-11-28 03:18:58,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.2) internal successors, (32), 11 states have internal predecessors, (32), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 03:18:58,504 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 523 transitions. [2024-11-28 03:18:58,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-28 03:18:58,505 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:58,506 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:58,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-28 03:18:58,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-28 03:18:58,710 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:18:58,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:58,711 INFO L85 PathProgramCache]: Analyzing trace with hash 8877950, now seen corresponding path program 1 times [2024-11-28 03:18:58,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:58,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327742941] [2024-11-28 03:18:58,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:58,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:58,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:58,993 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 03:18:58,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:58,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327742941] [2024-11-28 03:18:58,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327742941] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:18:58,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [915184600] [2024-11-28 03:18:58,994 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:58,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:18:58,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:18:58,996 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:18:58,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-28 03:18:59,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:59,067 INFO L256 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 03:18:59,069 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:18:59,519 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 20 proven. 16 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 03:18:59,519 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:19:00,095 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 22 proven. 14 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 03:19:00,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [915184600] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:19:00,095 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:19:00,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 21 [2024-11-28 03:19:00,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048156419] [2024-11-28 03:19:00,096 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:19:00,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-28 03:19:00,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:00,099 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-28 03:19:00,099 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=364, Unknown=0, NotChecked=0, Total=462 [2024-11-28 03:19:00,099 INFO L87 Difference]: Start difference. First operand 402 states and 523 transitions. Second operand has 22 states, 21 states have (on average 6.761904761904762) internal successors, (142), 22 states have internal predecessors, (142), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-11-28 03:19:01,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:19:01,198 INFO L93 Difference]: Finished difference Result 542 states and 705 transitions. [2024-11-28 03:19:01,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 03:19:01,199 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 6.761904761904762) internal successors, (142), 22 states have internal predecessors, (142), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) Word has length 112 [2024-11-28 03:19:01,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:19:01,201 INFO L225 Difference]: With dead ends: 542 [2024-11-28 03:19:01,202 INFO L226 Difference]: Without dead ends: 457 [2024-11-28 03:19:01,202 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=430, Invalid=1210, Unknown=0, NotChecked=0, Total=1640 [2024-11-28 03:19:01,203 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 750 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 750 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:19:01,203 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [750 Valid, 403 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:19:01,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2024-11-28 03:19:01,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 396. [2024-11-28 03:19:01,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 318 states have (on average 1.2452830188679245) internal successors, (396), 329 states have internal predecessors, (396), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-28 03:19:01,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 526 transitions. [2024-11-28 03:19:01,256 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 526 transitions. Word has length 112 [2024-11-28 03:19:01,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:19:01,257 INFO L471 AbstractCegarLoop]: Abstraction has 396 states and 526 transitions. [2024-11-28 03:19:01,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 6.761904761904762) internal successors, (142), 22 states have internal predecessors, (142), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-11-28 03:19:01,257 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 526 transitions. [2024-11-28 03:19:01,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-28 03:19:01,259 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:01,259 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:19:01,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-28 03:19:01,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-28 03:19:01,460 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:19:01,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:01,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1985602247, now seen corresponding path program 1 times [2024-11-28 03:19:01,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:01,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213352116] [2024-11-28 03:19:01,462 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:01,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:01,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:01,770 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 13 proven. 17 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2024-11-28 03:19:01,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:01,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213352116] [2024-11-28 03:19:01,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213352116] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:19:01,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660563498] [2024-11-28 03:19:01,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:01,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:19:01,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:19:01,773 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:19:01,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-28 03:19:01,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:01,856 INFO L256 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 03:19:01,859 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:19:02,158 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 22 proven. 17 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 03:19:02,159 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:19:06,051 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 03:19:06,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660563498] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:19:06,052 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:19:06,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 8] total 20 [2024-11-28 03:19:06,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282309846] [2024-11-28 03:19:06,052 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:19:06,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-28 03:19:06,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:06,055 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-28 03:19:06,055 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2024-11-28 03:19:06,056 INFO L87 Difference]: Start difference. First operand 396 states and 526 transitions. Second operand has 21 states, 20 states have (on average 7.4) internal successors, (148), 21 states have internal predecessors, (148), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) [2024-11-28 03:19:06,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:19:06,569 INFO L93 Difference]: Finished difference Result 523 states and 707 transitions. [2024-11-28 03:19:06,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:19:06,569 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 7.4) internal successors, (148), 21 states have internal predecessors, (148), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) Word has length 117 [2024-11-28 03:19:06,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:19:06,572 INFO L225 Difference]: With dead ends: 523 [2024-11-28 03:19:06,572 INFO L226 Difference]: Without dead ends: 522 [2024-11-28 03:19:06,572 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=204, Invalid=396, Unknown=0, NotChecked=0, Total=600 [2024-11-28 03:19:06,573 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 177 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:19:06,573 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 283 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:19:06,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2024-11-28 03:19:06,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 395. [2024-11-28 03:19:06,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 318 states have (on average 1.2358490566037736) internal successors, (393), 328 states have internal predecessors, (393), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-28 03:19:06,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 523 transitions. [2024-11-28 03:19:06,646 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 523 transitions. Word has length 117 [2024-11-28 03:19:06,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:19:06,646 INFO L471 AbstractCegarLoop]: Abstraction has 395 states and 523 transitions. [2024-11-28 03:19:06,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 7.4) internal successors, (148), 21 states have internal predecessors, (148), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) [2024-11-28 03:19:06,647 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 523 transitions. [2024-11-28 03:19:06,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-28 03:19:06,649 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:06,649 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:19:06,660 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-28 03:19:06,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:19:06,853 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:19:06,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:06,854 INFO L85 PathProgramCache]: Analyzing trace with hash -679806261, now seen corresponding path program 3 times [2024-11-28 03:19:06,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:06,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154411202] [2024-11-28 03:19:06,854 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:19:06,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:06,912 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-11-28 03:19:06,913 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 03:19:06,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1314041888] [2024-11-28 03:19:06,914 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:19:06,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:19:06,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:19:06,918 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:19:06,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-28 03:19:06,985 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-28 03:19:06,985 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:19:06,986 INFO L256 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 03:19:06,990 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:19:07,591 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 39 proven. 4 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2024-11-28 03:19:07,591 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:19:22,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:22,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154411202] [2024-11-28 03:19:22,875 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:19:22,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1314041888] [2024-11-28 03:19:22,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1314041888] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:19:22,875 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:19:22,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 03:19:22,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133274554] [2024-11-28 03:19:22,876 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:19:22,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:19:22,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:22,877 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:19:22,877 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=208, Unknown=3, NotChecked=0, Total=272 [2024-11-28 03:19:22,877 INFO L87 Difference]: Start difference. First operand 395 states and 523 transitions. Second operand has 11 states, 10 states have (on average 3.8) internal successors, (38), 11 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 03:19:24,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:19:24,074 INFO L93 Difference]: Finished difference Result 410 states and 537 transitions. [2024-11-28 03:19:24,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:19:24,075 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.8) internal successors, (38), 11 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 118 [2024-11-28 03:19:24,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:19:24,077 INFO L225 Difference]: With dead ends: 410 [2024-11-28 03:19:24,078 INFO L226 Difference]: Without dead ends: 409 [2024-11-28 03:19:24,078 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 14.5s TimeCoverageRelationStatistics Valid=169, Invalid=478, Unknown=3, NotChecked=0, Total=650 [2024-11-28 03:19:24,079 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 132 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:19:24,079 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 115 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:19:24,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-11-28 03:19:24,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 395. [2024-11-28 03:19:24,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 318 states have (on average 1.2232704402515724) internal successors, (389), 328 states have internal predecessors, (389), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-28 03:19:24,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 519 transitions. [2024-11-28 03:19:24,155 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 519 transitions. Word has length 118 [2024-11-28 03:19:24,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:19:24,156 INFO L471 AbstractCegarLoop]: Abstraction has 395 states and 519 transitions. [2024-11-28 03:19:24,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.8) internal successors, (38), 11 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 03:19:24,156 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 519 transitions. [2024-11-28 03:19:24,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-28 03:19:24,158 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:24,159 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:19:24,169 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-28 03:19:24,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:19:24,359 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:19:24,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:24,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1424127398, now seen corresponding path program 1 times [2024-11-28 03:19:24,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:24,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264725896] [2024-11-28 03:19:24,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:24,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:24,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:24,784 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 03:19:24,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:24,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264725896] [2024-11-28 03:19:24,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264725896] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:19:24,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [319189702] [2024-11-28 03:19:24,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:24,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:19:24,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:19:24,786 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:19:24,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-28 03:19:24,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:24,867 INFO L256 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 03:19:24,873 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:19:25,462 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 03:19:25,462 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:19:27,747 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 03:19:27,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [319189702] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:19:27,747 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:19:27,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 21 [2024-11-28 03:19:27,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102139215] [2024-11-28 03:19:27,748 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:19:27,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-28 03:19:27,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:27,749 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-28 03:19:27,749 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=298, Unknown=0, NotChecked=0, Total=462 [2024-11-28 03:19:27,750 INFO L87 Difference]: Start difference. First operand 395 states and 519 transitions. Second operand has 22 states, 21 states have (on average 7.428571428571429) internal successors, (156), 22 states have internal predecessors, (156), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-11-28 03:19:30,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:19:30,141 INFO L93 Difference]: Finished difference Result 642 states and 825 transitions. [2024-11-28 03:19:30,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 03:19:30,142 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 7.428571428571429) internal successors, (156), 22 states have internal predecessors, (156), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) Word has length 118 [2024-11-28 03:19:30,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:19:30,146 INFO L225 Difference]: With dead ends: 642 [2024-11-28 03:19:30,146 INFO L226 Difference]: Without dead ends: 641 [2024-11-28 03:19:30,148 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=397, Invalid=659, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 03:19:30,150 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 338 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:19:30,150 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 479 Invalid, 800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 03:19:30,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2024-11-28 03:19:30,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 530. [2024-11-28 03:19:30,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 437 states have (on average 1.2173913043478262) internal successors, (532), 447 states have internal predecessors, (532), 81 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-28 03:19:30,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 694 transitions. [2024-11-28 03:19:30,244 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 694 transitions. Word has length 118 [2024-11-28 03:19:30,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:19:30,244 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 694 transitions. [2024-11-28 03:19:30,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 7.428571428571429) internal successors, (156), 22 states have internal predecessors, (156), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-11-28 03:19:30,245 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 694 transitions. [2024-11-28 03:19:30,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-28 03:19:30,250 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:30,250 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-28 03:19:30,259 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-28 03:19:30,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-28 03:19:30,451 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:19:30,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:30,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1198276299, now seen corresponding path program 2 times [2024-11-28 03:19:30,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:30,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814159849] [2024-11-28 03:19:30,452 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:19:30,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:30,491 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:19:30,493 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 03:19:30,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1491464425] [2024-11-28 03:19:30,494 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:19:30,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:19:30,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:19:30,497 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:19:30,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-28 03:19:30,548 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:19:30,549 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:19:30,549 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:19:30,552 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:19:30,777 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2024-11-28 03:19:30,777 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:19:30,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:30,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814159849] [2024-11-28 03:19:30,778 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:19:30,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1491464425] [2024-11-28 03:19:30,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1491464425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:19:30,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:19:30,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:19:30,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333811697] [2024-11-28 03:19:30,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:19:30,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:19:30,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:30,779 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:19:30,779 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:19:30,779 INFO L87 Difference]: Start difference. First operand 530 states and 694 transitions. Second operand has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 03:19:31,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:19:31,014 INFO L93 Difference]: Finished difference Result 530 states and 694 transitions. [2024-11-28 03:19:31,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:19:31,015 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 119 [2024-11-28 03:19:31,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:19:31,017 INFO L225 Difference]: With dead ends: 530 [2024-11-28 03:19:31,017 INFO L226 Difference]: Without dead ends: 529 [2024-11-28 03:19:31,018 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:19:31,018 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 49 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:19:31,018 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 77 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:19:31,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2024-11-28 03:19:31,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 501. [2024-11-28 03:19:31,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 413 states have (on average 1.1864406779661016) internal successors, (490), 422 states have internal predecessors, (490), 77 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2024-11-28 03:19:31,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 644 transitions. [2024-11-28 03:19:31,099 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 644 transitions. Word has length 119 [2024-11-28 03:19:31,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:19:31,100 INFO L471 AbstractCegarLoop]: Abstraction has 501 states and 644 transitions. [2024-11-28 03:19:31,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 03:19:31,100 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 644 transitions. [2024-11-28 03:19:31,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-28 03:19:31,101 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:31,101 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-28 03:19:31,110 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-28 03:19:31,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-28 03:19:31,305 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:19:31,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:31,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1919021342, now seen corresponding path program 4 times [2024-11-28 03:19:31,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:31,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250154809] [2024-11-28 03:19:31,306 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 03:19:31,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:31,338 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 03:19:31,339 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:19:31,797 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 03:19:31,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:31,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250154809] [2024-11-28 03:19:31,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250154809] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:19:31,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [916774807] [2024-11-28 03:19:31,798 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 03:19:31,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:19:31,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:19:31,803 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:19:31,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-28 03:19:31,892 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 03:19:31,892 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:19:31,899 INFO L256 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-28 03:19:31,902 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:19:33,726 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 58 proven. 26 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-11-28 03:19:33,726 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:19:51,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [916774807] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:19:51,403 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:19:51,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 14] total 23 [2024-11-28 03:19:51,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982179073] [2024-11-28 03:19:51,403 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:19:51,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-28 03:19:51,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:51,404 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-28 03:19:51,404 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=713, Unknown=4, NotChecked=0, Total=812 [2024-11-28 03:19:51,405 INFO L87 Difference]: Start difference. First operand 501 states and 644 transitions. Second operand has 24 states, 23 states have (on average 5.173913043478261) internal successors, (119), 24 states have internal predecessors, (119), 9 states have call successors, (26), 1 states have call predecessors, (26), 2 states have return successors, (26), 10 states have call predecessors, (26), 9 states have call successors, (26) [2024-11-28 03:19:55,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:19:55,829 INFO L93 Difference]: Finished difference Result 837 states and 1076 transitions. [2024-11-28 03:19:55,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-28 03:19:55,829 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.173913043478261) internal successors, (119), 24 states have internal predecessors, (119), 9 states have call successors, (26), 1 states have call predecessors, (26), 2 states have return successors, (26), 10 states have call predecessors, (26), 9 states have call successors, (26) Word has length 122 [2024-11-28 03:19:55,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:19:55,832 INFO L225 Difference]: With dead ends: 837 [2024-11-28 03:19:55,832 INFO L226 Difference]: Without dead ends: 831 [2024-11-28 03:19:55,834 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 119 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1257 ImplicationChecksByTransitivity, 19.8s TimeCoverageRelationStatistics Valid=769, Invalid=4339, Unknown=4, NotChecked=0, Total=5112 [2024-11-28 03:19:55,834 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 704 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 1662 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 1810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 1662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:19:55,834 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [704 Valid, 393 Invalid, 1810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 1662 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-28 03:19:55,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2024-11-28 03:19:55,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 620. [2024-11-28 03:19:55,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 620 states, 522 states have (on average 1.185823754789272) internal successors, (619), 531 states have internal predecessors, (619), 87 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-28 03:19:55,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 793 transitions. [2024-11-28 03:19:55,924 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 793 transitions. Word has length 122 [2024-11-28 03:19:55,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:19:55,926 INFO L471 AbstractCegarLoop]: Abstraction has 620 states and 793 transitions. [2024-11-28 03:19:55,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.173913043478261) internal successors, (119), 24 states have internal predecessors, (119), 9 states have call successors, (26), 1 states have call predecessors, (26), 2 states have return successors, (26), 10 states have call predecessors, (26), 9 states have call successors, (26) [2024-11-28 03:19:55,926 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 793 transitions. [2024-11-28 03:19:55,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-28 03:19:55,928 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:55,928 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:19:55,937 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-28 03:19:56,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-28 03:19:56,133 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:19:56,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:56,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1283880990, now seen corresponding path program 1 times [2024-11-28 03:19:56,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:56,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253774998] [2024-11-28 03:19:56,133 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:56,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:56,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:19:56,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1877950519] [2024-11-28 03:19:56,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:56,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:19:56,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:19:56,160 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:19:56,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-28 03:19:56,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:56,235 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:19:56,238 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:19:56,518 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2024-11-28 03:19:56,518 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:19:56,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:56,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253774998] [2024-11-28 03:19:56,518 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:19:56,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1877950519] [2024-11-28 03:19:56,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1877950519] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:19:56,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:19:56,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:19:56,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832530662] [2024-11-28 03:19:56,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:19:56,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:19:56,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:56,520 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:19:56,520 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:19:56,520 INFO L87 Difference]: Start difference. First operand 620 states and 793 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 03:19:56,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:19:56,675 INFO L93 Difference]: Finished difference Result 620 states and 793 transitions. [2024-11-28 03:19:56,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:19:56,676 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 125 [2024-11-28 03:19:56,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:19:56,679 INFO L225 Difference]: With dead ends: 620 [2024-11-28 03:19:56,679 INFO L226 Difference]: Without dead ends: 618 [2024-11-28 03:19:56,679 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:19:56,680 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 24 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:19:56,680 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 61 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:19:56,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2024-11-28 03:19:56,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 480. [2024-11-28 03:19:56,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 400 states have (on average 1.1525) internal successors, (461), 407 states have internal predecessors, (461), 71 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-28 03:19:56,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 603 transitions. [2024-11-28 03:19:56,780 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 603 transitions. Word has length 125 [2024-11-28 03:19:56,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:19:56,780 INFO L471 AbstractCegarLoop]: Abstraction has 480 states and 603 transitions. [2024-11-28 03:19:56,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 03:19:56,780 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 603 transitions. [2024-11-28 03:19:56,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-28 03:19:56,782 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:56,782 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:19:56,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-28 03:19:56,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-28 03:19:56,986 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:19:56,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:56,988 INFO L85 PathProgramCache]: Analyzing trace with hash -379624157, now seen corresponding path program 1 times [2024-11-28 03:19:56,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:56,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095102799] [2024-11-28 03:19:56,988 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:56,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:57,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:19:57,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1275648533] [2024-11-28 03:19:57,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:57,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:19:57,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:19:57,024 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:19:57,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-28 03:19:57,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:57,109 INFO L256 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-28 03:19:57,114 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:19:58,007 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-28 03:19:58,007 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:19:58,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:58,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095102799] [2024-11-28 03:19:58,533 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:19:58,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275648533] [2024-11-28 03:19:58,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275648533] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:19:58,533 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:19:58,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 03:19:58,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681601331] [2024-11-28 03:19:58,533 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:19:58,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:19:58,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:58,534 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:19:58,535 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:19:58,535 INFO L87 Difference]: Start difference. First operand 480 states and 603 transitions. Second operand has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 12 states have internal predecessors, (60), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-28 03:19:59,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:19:59,334 INFO L93 Difference]: Finished difference Result 484 states and 607 transitions. [2024-11-28 03:19:59,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:19:59,334 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 12 states have internal predecessors, (60), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 132 [2024-11-28 03:19:59,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:19:59,337 INFO L225 Difference]: With dead ends: 484 [2024-11-28 03:19:59,337 INFO L226 Difference]: Without dead ends: 483 [2024-11-28 03:19:59,338 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:19:59,338 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 15 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:19:59,339 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 191 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:19:59,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2024-11-28 03:19:59,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 481. [2024-11-28 03:19:59,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 401 states have (on average 1.1521197007481296) internal successors, (462), 408 states have internal predecessors, (462), 71 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-28 03:19:59,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 604 transitions. [2024-11-28 03:19:59,435 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 604 transitions. Word has length 132 [2024-11-28 03:19:59,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:19:59,435 INFO L471 AbstractCegarLoop]: Abstraction has 481 states and 604 transitions. [2024-11-28 03:19:59,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 12 states have internal predecessors, (60), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-28 03:19:59,435 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 604 transitions. [2024-11-28 03:19:59,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-28 03:19:59,439 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:59,439 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:19:59,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-11-28 03:19:59,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-28 03:19:59,640 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:19:59,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:59,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1116553146, now seen corresponding path program 1 times [2024-11-28 03:19:59,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:59,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160759875] [2024-11-28 03:19:59,641 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:59,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:59,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:19:59,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [524919865] [2024-11-28 03:19:59,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:59,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:19:59,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:19:59,676 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:19:59,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-28 03:19:59,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:59,764 INFO L256 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-28 03:19:59,767 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:20:00,923 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-28 03:20:00,923 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:20:01,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:01,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160759875] [2024-11-28 03:20:01,794 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:20:01,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524919865] [2024-11-28 03:20:01,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [524919865] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:20:01,794 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:20:01,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2024-11-28 03:20:01,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065758516] [2024-11-28 03:20:01,795 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:20:01,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 03:20:01,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:01,796 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 03:20:01,796 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2024-11-28 03:20:01,796 INFO L87 Difference]: Start difference. First operand 481 states and 604 transitions. Second operand has 17 states, 16 states have (on average 3.8125) internal successors, (61), 17 states have internal predecessors, (61), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-28 03:20:03,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:20:03,115 INFO L93 Difference]: Finished difference Result 489 states and 611 transitions. [2024-11-28 03:20:03,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 03:20:03,115 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.8125) internal successors, (61), 17 states have internal predecessors, (61), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 133 [2024-11-28 03:20:03,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:20:03,117 INFO L225 Difference]: With dead ends: 489 [2024-11-28 03:20:03,118 INFO L226 Difference]: Without dead ends: 484 [2024-11-28 03:20:03,118 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2024-11-28 03:20:03,119 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 28 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 1138 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 1148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:20:03,119 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 289 Invalid, 1148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1138 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 03:20:03,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2024-11-28 03:20:03,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 481. [2024-11-28 03:20:03,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 401 states have (on average 1.14713216957606) internal successors, (460), 408 states have internal predecessors, (460), 71 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-28 03:20:03,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 602 transitions. [2024-11-28 03:20:03,210 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 602 transitions. Word has length 133 [2024-11-28 03:20:03,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:20:03,210 INFO L471 AbstractCegarLoop]: Abstraction has 481 states and 602 transitions. [2024-11-28 03:20:03,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.8125) internal successors, (61), 17 states have internal predecessors, (61), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-28 03:20:03,210 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 602 transitions. [2024-11-28 03:20:03,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-28 03:20:03,212 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:20:03,212 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:20:03,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-11-28 03:20:03,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-28 03:20:03,413 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:20:03,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:03,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1293798109, now seen corresponding path program 3 times [2024-11-28 03:20:03,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:03,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840634847] [2024-11-28 03:20:03,413 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:20:03,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:03,447 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-11-28 03:20:03,448 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 03:20:03,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [107770061] [2024-11-28 03:20:03,449 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:20:03,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:20:03,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:20:03,453 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:20:03,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-28 03:20:03,521 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-28 03:20:03,521 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:20:03,526 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 03:20:03,529 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:20:03,791 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 59 proven. 2 refuted. 0 times theorem prover too weak. 417 trivial. 0 not checked. [2024-11-28 03:20:03,791 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:20:04,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:04,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840634847] [2024-11-28 03:20:04,209 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:20:04,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [107770061] [2024-11-28 03:20:04,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [107770061] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:20:04,209 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:20:04,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 03:20:04,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852343352] [2024-11-28 03:20:04,209 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:20:04,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:20:04,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:04,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:20:04,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:20:04,210 INFO L87 Difference]: Start difference. First operand 481 states and 602 transitions. Second operand has 9 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 03:20:04,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:20:04,662 INFO L93 Difference]: Finished difference Result 483 states and 604 transitions. [2024-11-28 03:20:04,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:20:04,662 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 136 [2024-11-28 03:20:04,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:20:04,664 INFO L225 Difference]: With dead ends: 483 [2024-11-28 03:20:04,665 INFO L226 Difference]: Without dead ends: 482 [2024-11-28 03:20:04,665 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2024-11-28 03:20:04,665 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 72 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:20:04,666 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 79 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:20:04,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2024-11-28 03:20:04,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 480. [2024-11-28 03:20:04,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 401 states have (on average 1.14214463840399) internal successors, (458), 407 states have internal predecessors, (458), 71 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-28 03:20:04,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 600 transitions. [2024-11-28 03:20:04,751 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 600 transitions. Word has length 136 [2024-11-28 03:20:04,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:20:04,752 INFO L471 AbstractCegarLoop]: Abstraction has 480 states and 600 transitions. [2024-11-28 03:20:04,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 03:20:04,752 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 600 transitions. [2024-11-28 03:20:04,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-28 03:20:04,753 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:20:04,754 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:20:04,763 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-28 03:20:04,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-28 03:20:04,958 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:20:04,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:04,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1453035840, now seen corresponding path program 1 times [2024-11-28 03:20:04,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:04,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569275371] [2024-11-28 03:20:04,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:04,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:04,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:20:04,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [525707041] [2024-11-28 03:20:04,996 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:04,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:20:04,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:20:05,005 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:20:05,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-28 03:20:05,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:05,104 INFO L256 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-28 03:20:05,107 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:20:06,472 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-28 03:20:06,472 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:20:07,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:07,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569275371] [2024-11-28 03:20:07,648 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:20:07,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525707041] [2024-11-28 03:20:07,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [525707041] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:20:07,648 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:20:07,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2024-11-28 03:20:07,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250410490] [2024-11-28 03:20:07,648 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:20:07,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 03:20:07,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:07,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 03:20:07,649 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=366, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:20:07,649 INFO L87 Difference]: Start difference. First operand 480 states and 600 transitions. Second operand has 17 states, 16 states have (on average 4.0625) internal successors, (65), 17 states have internal predecessors, (65), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-28 03:20:08,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:20:08,672 INFO L93 Difference]: Finished difference Result 483 states and 602 transitions. [2024-11-28 03:20:08,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 03:20:08,673 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.0625) internal successors, (65), 17 states have internal predecessors, (65), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 137 [2024-11-28 03:20:08,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:20:08,675 INFO L225 Difference]: With dead ends: 483 [2024-11-28 03:20:08,675 INFO L226 Difference]: Without dead ends: 480 [2024-11-28 03:20:08,676 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=175, Invalid=475, Unknown=0, NotChecked=0, Total=650 [2024-11-28 03:20:08,676 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 34 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 863 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:20:08,676 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 229 Invalid, 872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 863 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:20:08,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2024-11-28 03:20:08,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 478. [2024-11-28 03:20:08,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 399 states have (on average 1.1403508771929824) internal successors, (455), 405 states have internal predecessors, (455), 71 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-28 03:20:08,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 597 transitions. [2024-11-28 03:20:08,753 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 597 transitions. Word has length 137 [2024-11-28 03:20:08,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:20:08,754 INFO L471 AbstractCegarLoop]: Abstraction has 478 states and 597 transitions. [2024-11-28 03:20:08,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.0625) internal successors, (65), 17 states have internal predecessors, (65), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-28 03:20:08,754 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 597 transitions. [2024-11-28 03:20:08,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-28 03:20:08,756 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:20:08,756 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:20:08,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-11-28 03:20:08,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:20:08,957 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:20:08,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:08,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1240630884, now seen corresponding path program 2 times [2024-11-28 03:20:08,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:08,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739708664] [2024-11-28 03:20:08,960 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:20:08,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:08,982 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:20:08,983 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:20:09,352 INFO L134 CoverageAnalysis]: Checked inductivity of 692 backedges. 22 proven. 58 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:20:09,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:09,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739708664] [2024-11-28 03:20:09,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739708664] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:20:09,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1646876153] [2024-11-28 03:20:09,353 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:20:09,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:20:09,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:20:09,355 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:20:09,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-28 03:20:09,458 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:20:09,458 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:20:09,460 INFO L256 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 03:20:09,462 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:20:10,085 INFO L134 CoverageAnalysis]: Checked inductivity of 692 backedges. 295 proven. 0 refuted. 0 times theorem prover too weak. 397 trivial. 0 not checked. [2024-11-28 03:20:10,085 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:20:10,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1646876153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:20:10,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:20:10,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2024-11-28 03:20:10,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763135727] [2024-11-28 03:20:10,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:20:10,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:20:10,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:10,091 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:20:10,091 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:20:10,091 INFO L87 Difference]: Start difference. First operand 478 states and 597 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 5 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-28 03:20:10,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:20:10,602 INFO L93 Difference]: Finished difference Result 593 states and 738 transitions. [2024-11-28 03:20:10,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:20:10,602 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 5 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 155 [2024-11-28 03:20:10,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:20:10,604 INFO L225 Difference]: With dead ends: 593 [2024-11-28 03:20:10,604 INFO L226 Difference]: Without dead ends: 481 [2024-11-28 03:20:10,604 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 151 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:20:10,605 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 88 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:20:10,605 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 256 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:20:10,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2024-11-28 03:20:10,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 452. [2024-11-28 03:20:10,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 375 states have (on average 1.152) internal successors, (432), 381 states have internal predecessors, (432), 69 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2024-11-28 03:20:10,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 570 transitions. [2024-11-28 03:20:10,704 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 570 transitions. Word has length 155 [2024-11-28 03:20:10,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:20:10,705 INFO L471 AbstractCegarLoop]: Abstraction has 452 states and 570 transitions. [2024-11-28 03:20:10,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 5 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-28 03:20:10,705 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 570 transitions. [2024-11-28 03:20:10,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-28 03:20:10,707 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:20:10,707 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:20:10,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-11-28 03:20:10,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:20:10,911 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:20:10,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:10,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1517007460, now seen corresponding path program 3 times [2024-11-28 03:20:10,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:10,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454590687] [2024-11-28 03:20:10,912 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:20:10,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:10,945 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-11-28 03:20:10,945 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:20:11,572 INFO L134 CoverageAnalysis]: Checked inductivity of 692 backedges. 22 proven. 58 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:20:11,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:11,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454590687] [2024-11-28 03:20:11,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454590687] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:20:11,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379230506] [2024-11-28 03:20:11,572 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:20:11,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:20:11,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:20:11,577 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:20:11,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-28 03:20:11,667 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-28 03:20:11,667 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:20:11,668 INFO L256 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 03:20:11,672 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:20:12,082 INFO L134 CoverageAnalysis]: Checked inductivity of 692 backedges. 63 proven. 2 refuted. 0 times theorem prover too weak. 627 trivial. 0 not checked. [2024-11-28 03:20:12,082 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:20:12,620 INFO L134 CoverageAnalysis]: Checked inductivity of 692 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 627 trivial. 0 not checked. [2024-11-28 03:20:12,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [379230506] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:20:12,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:20:12,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8, 7] total 18 [2024-11-28 03:20:12,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955115662] [2024-11-28 03:20:12,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:20:12,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:20:12,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:12,621 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:20:12,621 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:20:12,621 INFO L87 Difference]: Start difference. First operand 452 states and 570 transitions. Second operand has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 03:20:13,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:20:13,186 INFO L93 Difference]: Finished difference Result 452 states and 570 transitions. [2024-11-28 03:20:13,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:20:13,187 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 155 [2024-11-28 03:20:13,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:20:13,188 INFO L225 Difference]: With dead ends: 452 [2024-11-28 03:20:13,188 INFO L226 Difference]: Without dead ends: 451 [2024-11-28 03:20:13,189 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 302 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2024-11-28 03:20:13,189 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 81 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:20:13,190 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 62 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:20:13,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2024-11-28 03:20:13,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 449. [2024-11-28 03:20:13,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 373 states have (on average 1.1501340482573728) internal successors, (429), 378 states have internal predecessors, (429), 69 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2024-11-28 03:20:13,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 567 transitions. [2024-11-28 03:20:13,293 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 567 transitions. Word has length 155 [2024-11-28 03:20:13,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:20:13,293 INFO L471 AbstractCegarLoop]: Abstraction has 449 states and 567 transitions. [2024-11-28 03:20:13,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 03:20:13,294 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 567 transitions. [2024-11-28 03:20:13,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-28 03:20:13,296 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:20:13,296 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:20:13,307 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-11-28 03:20:13,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:20:13,497 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:20:13,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:13,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1850251650, now seen corresponding path program 1 times [2024-11-28 03:20:13,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:13,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368125938] [2024-11-28 03:20:13,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:13,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:13,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:13,829 INFO L134 CoverageAnalysis]: Checked inductivity of 692 backedges. 22 proven. 58 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:20:13,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:13,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368125938] [2024-11-28 03:20:13,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368125938] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:20:13,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1495741622] [2024-11-28 03:20:13,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:13,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:20:13,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:20:13,833 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:20:13,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-28 03:20:13,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:13,924 INFO L256 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-28 03:20:13,928 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:20:14,710 INFO L134 CoverageAnalysis]: Checked inductivity of 692 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:20:14,710 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:20:14,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1495741622] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:20:14,886 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:20:14,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 14] total 18 [2024-11-28 03:20:14,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428910094] [2024-11-28 03:20:14,886 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:20:14,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 03:20:14,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:14,887 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 03:20:14,888 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=338, Unknown=0, NotChecked=0, Total=420 [2024-11-28 03:20:14,888 INFO L87 Difference]: Start difference. First operand 449 states and 567 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 10 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 10 states have call predecessors, (36), 10 states have call successors, (36) [2024-11-28 03:20:16,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:20:16,181 INFO L93 Difference]: Finished difference Result 516 states and 644 transitions. [2024-11-28 03:20:16,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 03:20:16,181 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 10 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 10 states have call predecessors, (36), 10 states have call successors, (36) Word has length 157 [2024-11-28 03:20:16,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:20:16,184 INFO L225 Difference]: With dead ends: 516 [2024-11-28 03:20:16,184 INFO L226 Difference]: Without dead ends: 511 [2024-11-28 03:20:16,184 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 151 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=82, Invalid=338, Unknown=0, NotChecked=0, Total=420 [2024-11-28 03:20:16,189 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 57 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 994 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:20:16,189 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 473 Invalid, 996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 994 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 03:20:16,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2024-11-28 03:20:16,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 449. [2024-11-28 03:20:16,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 373 states have (on average 1.1447721179624666) internal successors, (427), 378 states have internal predecessors, (427), 69 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2024-11-28 03:20:16,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 565 transitions. [2024-11-28 03:20:16,290 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 565 transitions. Word has length 157 [2024-11-28 03:20:16,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:20:16,291 INFO L471 AbstractCegarLoop]: Abstraction has 449 states and 565 transitions. [2024-11-28 03:20:16,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 10 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 10 states have call predecessors, (36), 10 states have call successors, (36) [2024-11-28 03:20:16,291 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 565 transitions. [2024-11-28 03:20:16,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-28 03:20:16,293 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:20:16,293 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:20:16,303 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-11-28 03:20:16,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:20:16,493 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:20:16,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:16,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1619601733, now seen corresponding path program 2 times [2024-11-28 03:20:16,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:16,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901319190] [2024-11-28 03:20:16,494 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:20:16,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:16,518 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:20:16,518 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:20:17,046 INFO L134 CoverageAnalysis]: Checked inductivity of 635 backedges. 23 proven. 59 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2024-11-28 03:20:17,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:17,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901319190] [2024-11-28 03:20:17,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901319190] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:20:17,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [550030245] [2024-11-28 03:20:17,048 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:20:17,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:20:17,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:20:17,050 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:20:17,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-28 03:20:17,159 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:20:17,159 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:20:17,162 INFO L256 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-28 03:20:17,165 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:20:18,025 INFO L134 CoverageAnalysis]: Checked inductivity of 635 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2024-11-28 03:20:18,025 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:20:18,915 INFO L134 CoverageAnalysis]: Checked inductivity of 635 backedges. 46 proven. 36 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2024-11-28 03:20:18,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [550030245] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:20:18,915 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:20:18,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12, 10] total 26 [2024-11-28 03:20:18,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319889337] [2024-11-28 03:20:18,916 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:20:18,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-28 03:20:18,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:18,919 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-28 03:20:18,920 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=557, Unknown=0, NotChecked=0, Total=702 [2024-11-28 03:20:18,920 INFO L87 Difference]: Start difference. First operand 449 states and 565 transitions. Second operand has 27 states, 26 states have (on average 6.076923076923077) internal successors, (158), 27 states have internal predecessors, (158), 15 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 15 states have call predecessors, (38), 15 states have call successors, (38) [2024-11-28 03:20:20,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:20:20,781 INFO L93 Difference]: Finished difference Result 553 states and 693 transitions. [2024-11-28 03:20:20,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-28 03:20:20,785 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 6.076923076923077) internal successors, (158), 27 states have internal predecessors, (158), 15 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 15 states have call predecessors, (38), 15 states have call successors, (38) Word has length 157 [2024-11-28 03:20:20,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:20:20,787 INFO L225 Difference]: With dead ends: 553 [2024-11-28 03:20:20,787 INFO L226 Difference]: Without dead ends: 546 [2024-11-28 03:20:20,789 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 292 SyntacticMatches, 5 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 518 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=367, Invalid=1355, Unknown=0, NotChecked=0, Total=1722 [2024-11-28 03:20:20,793 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 433 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 898 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:20:20,794 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 522 Invalid, 994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 898 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 03:20:20,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2024-11-28 03:20:20,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 474. [2024-11-28 03:20:20,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 396 states have (on average 1.148989898989899) internal successors, (455), 401 states have internal predecessors, (455), 71 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-28 03:20:20,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 597 transitions. [2024-11-28 03:20:20,898 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 597 transitions. Word has length 157 [2024-11-28 03:20:20,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:20:20,899 INFO L471 AbstractCegarLoop]: Abstraction has 474 states and 597 transitions. [2024-11-28 03:20:20,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 6.076923076923077) internal successors, (158), 27 states have internal predecessors, (158), 15 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 15 states have call predecessors, (38), 15 states have call successors, (38) [2024-11-28 03:20:20,899 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 597 transitions. [2024-11-28 03:20:20,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-28 03:20:20,901 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:20:20,901 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:20:20,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2024-11-28 03:20:21,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:20:21,103 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:20:21,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:21,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1248653305, now seen corresponding path program 1 times [2024-11-28 03:20:21,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:21,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848618186] [2024-11-28 03:20:21,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:21,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:21,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:21,466 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 38 proven. 38 refuted. 0 times theorem prover too weak. 566 trivial. 0 not checked. [2024-11-28 03:20:21,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:21,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848618186] [2024-11-28 03:20:21,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848618186] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:20:21,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [394099280] [2024-11-28 03:20:21,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:21,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:20:21,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:20:21,471 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:20:21,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-28 03:20:21,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:21,569 INFO L256 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:20:21,572 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:20:21,853 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 600 trivial. 0 not checked. [2024-11-28 03:20:21,853 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:20:21,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [394099280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:20:21,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:20:21,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-28 03:20:21,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583744474] [2024-11-28 03:20:21,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:20:21,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:20:21,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:21,855 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:20:21,855 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:20:21,856 INFO L87 Difference]: Start difference. First operand 474 states and 597 transitions. Second operand has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 03:20:22,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:20:22,068 INFO L93 Difference]: Finished difference Result 474 states and 597 transitions. [2024-11-28 03:20:22,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:20:22,069 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 158 [2024-11-28 03:20:22,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:20:22,071 INFO L225 Difference]: With dead ends: 474 [2024-11-28 03:20:22,072 INFO L226 Difference]: Without dead ends: 473 [2024-11-28 03:20:22,072 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:20:22,072 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 26 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:20:22,075 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 83 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:20:22,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2024-11-28 03:20:22,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 437. [2024-11-28 03:20:22,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 364 states have (on average 1.1153846153846154) internal successors, (406), 368 states have internal predecessors, (406), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-28 03:20:22,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 540 transitions. [2024-11-28 03:20:22,151 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 540 transitions. Word has length 158 [2024-11-28 03:20:22,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:20:22,151 INFO L471 AbstractCegarLoop]: Abstraction has 437 states and 540 transitions. [2024-11-28 03:20:22,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 03:20:22,152 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 540 transitions. [2024-11-28 03:20:22,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-28 03:20:22,153 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:20:22,153 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:20:22,164 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2024-11-28 03:20:22,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:20:22,354 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:20:22,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:22,354 INFO L85 PathProgramCache]: Analyzing trace with hash -82119477, now seen corresponding path program 3 times [2024-11-28 03:20:22,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:22,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405341918] [2024-11-28 03:20:22,354 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:20:22,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:22,384 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-11-28 03:20:22,384 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:20:22,904 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 1 proven. 94 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:20:22,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:22,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405341918] [2024-11-28 03:20:22,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405341918] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:20:22,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1170016927] [2024-11-28 03:20:22,905 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:20:22,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:20:22,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:20:22,908 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:20:22,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-28 03:20:22,989 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-28 03:20:22,989 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:20:22,991 INFO L256 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 03:20:22,995 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:20:24,203 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 90 proven. 12 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked. [2024-11-28 03:20:24,204 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:20:25,053 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 90 proven. 12 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked. [2024-11-28 03:20:25,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1170016927] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:20:25,053 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:20:25,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 8] total 24 [2024-11-28 03:20:25,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126746659] [2024-11-28 03:20:25,054 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:20:25,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-28 03:20:25,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:25,055 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-28 03:20:25,055 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=476, Unknown=0, NotChecked=0, Total=552 [2024-11-28 03:20:25,056 INFO L87 Difference]: Start difference. First operand 437 states and 540 transitions. Second operand has 24 states, 24 states have (on average 6.416666666666667) internal successors, (154), 22 states have internal predecessors, (154), 10 states have call successors, (29), 1 states have call predecessors, (29), 2 states have return successors, (31), 12 states have call predecessors, (31), 10 states have call successors, (31) [2024-11-28 03:20:27,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:20:27,627 INFO L93 Difference]: Finished difference Result 459 states and 560 transitions. [2024-11-28 03:20:27,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-28 03:20:27,627 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 6.416666666666667) internal successors, (154), 22 states have internal predecessors, (154), 10 states have call successors, (29), 1 states have call predecessors, (29), 2 states have return successors, (31), 12 states have call predecessors, (31), 10 states have call successors, (31) Word has length 161 [2024-11-28 03:20:27,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:20:27,628 INFO L225 Difference]: With dead ends: 459 [2024-11-28 03:20:27,628 INFO L226 Difference]: Without dead ends: 228 [2024-11-28 03:20:27,630 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 605 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=561, Invalid=2195, Unknown=0, NotChecked=0, Total=2756 [2024-11-28 03:20:27,630 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 379 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 921 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 1038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:20:27,630 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 184 Invalid, 1038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 921 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 03:20:27,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-11-28 03:20:27,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 212. [2024-11-28 03:20:27,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 168 states have (on average 1.0892857142857142) internal successors, (183), 171 states have internal predecessors, (183), 39 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 03:20:27,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 261 transitions. [2024-11-28 03:20:27,678 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 261 transitions. Word has length 161 [2024-11-28 03:20:27,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:20:27,678 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 261 transitions. [2024-11-28 03:20:27,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 6.416666666666667) internal successors, (154), 22 states have internal predecessors, (154), 10 states have call successors, (29), 1 states have call predecessors, (29), 2 states have return successors, (31), 12 states have call predecessors, (31), 10 states have call successors, (31) [2024-11-28 03:20:27,679 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 261 transitions. [2024-11-28 03:20:27,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-28 03:20:27,680 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:20:27,680 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:20:27,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2024-11-28 03:20:27,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-11-28 03:20:27,881 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:20:27,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:27,881 INFO L85 PathProgramCache]: Analyzing trace with hash -942424337, now seen corresponding path program 1 times [2024-11-28 03:20:27,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:27,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538918102] [2024-11-28 03:20:27,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:27,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:27,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:28,524 INFO L134 CoverageAnalysis]: Checked inductivity of 706 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:20:28,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:28,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538918102] [2024-11-28 03:20:28,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538918102] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:20:28,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1426416948] [2024-11-28 03:20:28,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:28,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:20:28,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:20:28,528 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:20:28,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-28 03:20:28,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:28,627 INFO L256 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-28 03:20:28,630 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:20:29,645 INFO L134 CoverageAnalysis]: Checked inductivity of 706 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:20:29,645 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:20:35,584 INFO L134 CoverageAnalysis]: Checked inductivity of 706 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:20:35,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1426416948] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:20:35,584 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:20:35,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 8] total 29 [2024-11-28 03:20:35,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234134118] [2024-11-28 03:20:35,585 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:20:35,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-28 03:20:35,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:35,586 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-28 03:20:35,586 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=277, Invalid=593, Unknown=0, NotChecked=0, Total=870 [2024-11-28 03:20:35,587 INFO L87 Difference]: Start difference. First operand 212 states and 261 transitions. Second operand has 30 states, 29 states have (on average 7.344827586206897) internal successors, (213), 30 states have internal predecessors, (213), 18 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 18 states have call predecessors, (54), 18 states have call successors, (54) [2024-11-28 03:20:42,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:20:42,000 INFO L93 Difference]: Finished difference Result 579 states and 698 transitions. [2024-11-28 03:20:42,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-28 03:20:42,001 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 7.344827586206897) internal successors, (213), 30 states have internal predecessors, (213), 18 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 18 states have call predecessors, (54), 18 states have call successors, (54) Word has length 162 [2024-11-28 03:20:42,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:20:42,003 INFO L225 Difference]: With dead ends: 579 [2024-11-28 03:20:42,003 INFO L226 Difference]: Without dead ends: 578 [2024-11-28 03:20:42,003 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 963 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=1072, Invalid=1898, Unknown=0, NotChecked=0, Total=2970 [2024-11-28 03:20:42,004 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 523 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 1237 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 1372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 1237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:20:42,004 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [530 Valid, 615 Invalid, 1372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 1237 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-28 03:20:42,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2024-11-28 03:20:42,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 416. [2024-11-28 03:20:42,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 348 states have (on average 1.0862068965517242) internal successors, (378), 351 states have internal predecessors, (378), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-28 03:20:42,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 504 transitions. [2024-11-28 03:20:42,140 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 504 transitions. Word has length 162 [2024-11-28 03:20:42,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:20:42,140 INFO L471 AbstractCegarLoop]: Abstraction has 416 states and 504 transitions. [2024-11-28 03:20:42,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 7.344827586206897) internal successors, (213), 30 states have internal predecessors, (213), 18 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 18 states have call predecessors, (54), 18 states have call successors, (54) [2024-11-28 03:20:42,140 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 504 transitions. [2024-11-28 03:20:42,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-28 03:20:42,142 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:20:42,142 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-28 03:20:42,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2024-11-28 03:20:42,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:20:42,346 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:20:42,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:42,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1728467783, now seen corresponding path program 1 times [2024-11-28 03:20:42,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:42,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515807697] [2024-11-28 03:20:42,347 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:42,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:42,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:42,971 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:20:42,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:42,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515807697] [2024-11-28 03:20:42,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515807697] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:20:42,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2128862799] [2024-11-28 03:20:42,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:42,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:20:42,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:20:42,974 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:20:42,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-11-28 03:20:43,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:43,060 INFO L256 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 03:20:43,062 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:20:43,696 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:20:43,696 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:20:47,775 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:20:47,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2128862799] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:20:47,776 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:20:47,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 11] total 33 [2024-11-28 03:20:47,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252747185] [2024-11-28 03:20:47,776 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:20:47,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-28 03:20:47,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:47,777 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-28 03:20:47,778 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=208, Invalid=914, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 03:20:47,778 INFO L87 Difference]: Start difference. First operand 416 states and 504 transitions. Second operand has 34 states, 33 states have (on average 6.484848484848484) internal successors, (214), 34 states have internal predecessors, (214), 20 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 20 states have call predecessors, (51), 20 states have call successors, (51) [2024-11-28 03:20:53,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:20:53,034 INFO L93 Difference]: Finished difference Result 835 states and 1014 transitions. [2024-11-28 03:20:53,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-28 03:20:53,034 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 6.484848484848484) internal successors, (214), 34 states have internal predecessors, (214), 20 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 20 states have call predecessors, (51), 20 states have call successors, (51) Word has length 164 [2024-11-28 03:20:53,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:20:53,037 INFO L225 Difference]: With dead ends: 835 [2024-11-28 03:20:53,037 INFO L226 Difference]: Without dead ends: 834 [2024-11-28 03:20:53,038 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 985 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=990, Invalid=3042, Unknown=0, NotChecked=0, Total=4032 [2024-11-28 03:20:53,039 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 699 mSDsluCounter, 1006 mSDsCounter, 0 mSdLazyCounter, 941 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 1105 SdHoareTripleChecker+Invalid, 1123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:20:53,039 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [703 Valid, 1105 Invalid, 1123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 941 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-28 03:20:53,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2024-11-28 03:20:53,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 690. [2024-11-28 03:20:53,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 590 states have (on average 1.1067796610169491) internal successors, (653), 593 states have internal predecessors, (653), 95 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2024-11-28 03:20:53,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 843 transitions. [2024-11-28 03:20:53,232 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 843 transitions. Word has length 164 [2024-11-28 03:20:53,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:20:53,232 INFO L471 AbstractCegarLoop]: Abstraction has 690 states and 843 transitions. [2024-11-28 03:20:53,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 6.484848484848484) internal successors, (214), 34 states have internal predecessors, (214), 20 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 20 states have call predecessors, (51), 20 states have call successors, (51) [2024-11-28 03:20:53,232 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 843 transitions. [2024-11-28 03:20:53,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-28 03:20:53,233 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:20:53,234 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:20:53,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2024-11-28 03:20:53,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:20:53,434 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:20:53,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:53,435 INFO L85 PathProgramCache]: Analyzing trace with hash 689034035, now seen corresponding path program 1 times [2024-11-28 03:20:53,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:53,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405070878] [2024-11-28 03:20:53,435 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:53,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:53,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:54,141 INFO L134 CoverageAnalysis]: Checked inductivity of 718 backedges. 0 proven. 106 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:20:54,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:54,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405070878] [2024-11-28 03:20:54,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405070878] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:20:54,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [867108131] [2024-11-28 03:20:54,142 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:54,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:20:54,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:20:54,144 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:20:54,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-11-28 03:20:54,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:54,238 INFO L256 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-28 03:20:54,240 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:20:55,465 INFO L134 CoverageAnalysis]: Checked inductivity of 718 backedges. 0 proven. 106 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:20:55,465 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:20:56,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [867108131] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:20:56,122 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:20:56,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 24 [2024-11-28 03:20:56,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377700697] [2024-11-28 03:20:56,122 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:20:56,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-28 03:20:56,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:56,124 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-28 03:20:56,124 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=659, Unknown=0, NotChecked=0, Total=756 [2024-11-28 03:20:56,124 INFO L87 Difference]: Start difference. First operand 690 states and 843 transitions. Second operand has 25 states, 24 states have (on average 6.333333333333333) internal successors, (152), 25 states have internal predecessors, (152), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) [2024-11-28 03:20:58,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:20:58,987 INFO L93 Difference]: Finished difference Result 838 states and 1014 transitions. [2024-11-28 03:20:58,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-11-28 03:20:58,988 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 6.333333333333333) internal successors, (152), 25 states have internal predecessors, (152), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) Word has length 166 [2024-11-28 03:20:58,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:20:58,990 INFO L225 Difference]: With dead ends: 838 [2024-11-28 03:20:58,990 INFO L226 Difference]: Without dead ends: 837 [2024-11-28 03:20:58,991 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 763 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=464, Invalid=2506, Unknown=0, NotChecked=0, Total=2970 [2024-11-28 03:20:58,991 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 370 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 1238 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 1333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:20:58,991 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 603 Invalid, 1333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1238 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 03:20:58,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2024-11-28 03:20:59,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 698. [2024-11-28 03:20:59,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 598 states have (on average 1.0969899665551839) internal successors, (656), 601 states have internal predecessors, (656), 95 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2024-11-28 03:20:59,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 846 transitions. [2024-11-28 03:20:59,135 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 846 transitions. Word has length 166 [2024-11-28 03:20:59,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:20:59,135 INFO L471 AbstractCegarLoop]: Abstraction has 698 states and 846 transitions. [2024-11-28 03:20:59,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 6.333333333333333) internal successors, (152), 25 states have internal predecessors, (152), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) [2024-11-28 03:20:59,136 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 846 transitions. [2024-11-28 03:20:59,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-28 03:20:59,137 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:20:59,137 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2024-11-28 03:20:59,149 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2024-11-28 03:20:59,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-11-28 03:20:59,337 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:20:59,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:59,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1562127635, now seen corresponding path program 5 times [2024-11-28 03:20:59,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:59,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184048713] [2024-11-28 03:20:59,338 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 03:20:59,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:59,385 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-11-28 03:20:59,385 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:21:00,774 INFO L134 CoverageAnalysis]: Checked inductivity of 726 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:21:00,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:21:00,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184048713] [2024-11-28 03:21:00,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184048713] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:21:00,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1279121701] [2024-11-28 03:21:00,774 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 03:21:00,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:21:00,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:21:00,777 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:21:00,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-11-28 03:21:00,900 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-11-28 03:21:00,900 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:21:00,903 INFO L256 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-28 03:21:00,907 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:21:03,737 INFO L134 CoverageAnalysis]: Checked inductivity of 726 backedges. 93 proven. 156 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2024-11-28 03:21:03,737 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:21:04,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1279121701] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:21:04,469 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:21:04,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 22] total 37 [2024-11-28 03:21:04,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512227214] [2024-11-28 03:21:04,469 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:21:04,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-28 03:21:04,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:21:04,470 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-28 03:21:04,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=1528, Unknown=0, NotChecked=0, Total=1640 [2024-11-28 03:21:04,471 INFO L87 Difference]: Start difference. First operand 698 states and 846 transitions. Second operand has 38 states, 37 states have (on average 4.405405405405405) internal successors, (163), 38 states have internal predecessors, (163), 15 states have call successors, (36), 1 states have call predecessors, (36), 2 states have return successors, (36), 15 states have call predecessors, (36), 15 states have call successors, (36) [2024-11-28 03:21:14,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:21:14,020 INFO L93 Difference]: Finished difference Result 1137 states and 1374 transitions. [2024-11-28 03:21:14,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-11-28 03:21:14,020 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 4.405405405405405) internal successors, (163), 38 states have internal predecessors, (163), 15 states have call successors, (36), 1 states have call predecessors, (36), 2 states have return successors, (36), 15 states have call predecessors, (36), 15 states have call successors, (36) Word has length 170 [2024-11-28 03:21:14,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:21:14,023 INFO L225 Difference]: With dead ends: 1137 [2024-11-28 03:21:14,023 INFO L226 Difference]: Without dead ends: 1135 [2024-11-28 03:21:14,025 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 161 SyntacticMatches, 1 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1961 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=936, Invalid=7994, Unknown=0, NotChecked=0, Total=8930 [2024-11-28 03:21:14,026 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 630 mSDsluCounter, 996 mSDsCounter, 0 mSdLazyCounter, 4105 mSolverCounterSat, 188 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 1040 SdHoareTripleChecker+Invalid, 4293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 188 IncrementalHoareTripleChecker+Valid, 4105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:21:14,026 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [632 Valid, 1040 Invalid, 4293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [188 Valid, 4105 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-28 03:21:14,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1135 states. [2024-11-28 03:21:14,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1135 to 722. [2024-11-28 03:21:14,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 722 states, 618 states have (on average 1.0954692556634305) internal successors, (677), 621 states have internal predecessors, (677), 99 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-28 03:21:14,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 875 transitions. [2024-11-28 03:21:14,181 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 875 transitions. Word has length 170 [2024-11-28 03:21:14,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:21:14,181 INFO L471 AbstractCegarLoop]: Abstraction has 722 states and 875 transitions. [2024-11-28 03:21:14,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 4.405405405405405) internal successors, (163), 38 states have internal predecessors, (163), 15 states have call successors, (36), 1 states have call predecessors, (36), 2 states have return successors, (36), 15 states have call predecessors, (36), 15 states have call successors, (36) [2024-11-28 03:21:14,182 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 875 transitions. [2024-11-28 03:21:14,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-28 03:21:14,183 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:21:14,183 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:14,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2024-11-28 03:21:14,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-11-28 03:21:14,387 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:21:14,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:14,388 INFO L85 PathProgramCache]: Analyzing trace with hash 367757713, now seen corresponding path program 2 times [2024-11-28 03:21:14,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:21:14,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351260854] [2024-11-28 03:21:14,388 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:21:14,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:21:14,415 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:21:14,415 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 03:21:14,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [630171156] [2024-11-28 03:21:14,416 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:21:14,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:21:14,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:21:14,420 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:21:14,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-11-28 03:21:14,514 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:21:14,514 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:21:14,520 INFO L256 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-28 03:21:14,523 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:21:16,726 INFO L134 CoverageAnalysis]: Checked inductivity of 982 backedges. 0 proven. 142 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-28 03:21:16,726 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:21:18,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:21:18,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351260854] [2024-11-28 03:21:18,423 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:21:18,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [630171156] [2024-11-28 03:21:18,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [630171156] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:21:18,423 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:21:18,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2024-11-28 03:21:18,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307941991] [2024-11-28 03:21:18,423 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:21:18,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-28 03:21:18,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:21:18,424 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-28 03:21:18,425 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=692, Unknown=0, NotChecked=0, Total=812 [2024-11-28 03:21:18,425 INFO L87 Difference]: Start difference. First operand 722 states and 875 transitions. Second operand has 24 states, 23 states have (on average 3.739130434782609) internal successors, (86), 24 states have internal predecessors, (86), 8 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 8 states have call predecessors, (21), 8 states have call successors, (21) [2024-11-28 03:21:21,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:21:21,784 INFO L93 Difference]: Finished difference Result 836 states and 1008 transitions. [2024-11-28 03:21:21,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-28 03:21:21,784 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.739130434782609) internal successors, (86), 24 states have internal predecessors, (86), 8 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 8 states have call predecessors, (21), 8 states have call successors, (21) Word has length 188 [2024-11-28 03:21:21,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:21:21,787 INFO L225 Difference]: With dead ends: 836 [2024-11-28 03:21:21,787 INFO L226 Difference]: Without dead ends: 835 [2024-11-28 03:21:21,788 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=120, Invalid=692, Unknown=0, NotChecked=0, Total=812 [2024-11-28 03:21:21,788 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 36 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 2956 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 693 SdHoareTripleChecker+Invalid, 2957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:21:21,788 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 693 Invalid, 2957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2956 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-28 03:21:21,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2024-11-28 03:21:21,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 776. [2024-11-28 03:21:21,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 776 states, 666 states have (on average 1.0915915915915917) internal successors, (727), 669 states have internal predecessors, (727), 105 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2024-11-28 03:21:21,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 776 states to 776 states and 937 transitions. [2024-11-28 03:21:21,985 INFO L78 Accepts]: Start accepts. Automaton has 776 states and 937 transitions. Word has length 188 [2024-11-28 03:21:21,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:21:21,985 INFO L471 AbstractCegarLoop]: Abstraction has 776 states and 937 transitions. [2024-11-28 03:21:21,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.739130434782609) internal successors, (86), 24 states have internal predecessors, (86), 8 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 8 states have call predecessors, (21), 8 states have call successors, (21) [2024-11-28 03:21:21,985 INFO L276 IsEmpty]: Start isEmpty. Operand 776 states and 937 transitions. [2024-11-28 03:21:21,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-28 03:21:21,987 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:21:21,987 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:21,997 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2024-11-28 03:21:22,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-11-28 03:21:22,187 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:21:22,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:22,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1416076793, now seen corresponding path program 2 times [2024-11-28 03:21:22,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:21:22,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237353536] [2024-11-28 03:21:22,188 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:21:22,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:21:22,207 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:21:22,207 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:21:22,786 INFO L134 CoverageAnalysis]: Checked inductivity of 978 backedges. 24 proven. 54 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2024-11-28 03:21:22,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:21:22,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237353536] [2024-11-28 03:21:22,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237353536] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:21:22,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513587397] [2024-11-28 03:21:22,787 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:21:22,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:21:22,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:21:22,791 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:21:22,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-11-28 03:21:22,905 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:21:22,906 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:21:22,908 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-28 03:21:22,911 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:21:24,672 INFO L134 CoverageAnalysis]: Checked inductivity of 978 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-28 03:21:24,672 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:21:36,403 INFO L134 CoverageAnalysis]: Checked inductivity of 978 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-28 03:21:36,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [513587397] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:21:36,404 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:21:36,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 20, 16] total 45 [2024-11-28 03:21:36,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412182711] [2024-11-28 03:21:36,404 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:21:36,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-11-28 03:21:36,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:21:36,406 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-11-28 03:21:36,406 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=562, Invalid=1508, Unknown=0, NotChecked=0, Total=2070 [2024-11-28 03:21:36,407 INFO L87 Difference]: Start difference. First operand 776 states and 937 transitions. Second operand has 46 states, 45 states have (on average 5.022222222222222) internal successors, (226), 46 states have internal predecessors, (226), 20 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 20 states have call predecessors, (54), 20 states have call successors, (54) [2024-11-28 03:22:05,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:22:05,991 INFO L93 Difference]: Finished difference Result 1782 states and 2161 transitions. [2024-11-28 03:22:05,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2024-11-28 03:22:05,992 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 5.022222222222222) internal successors, (226), 46 states have internal predecessors, (226), 20 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 20 states have call predecessors, (54), 20 states have call successors, (54) Word has length 188 [2024-11-28 03:22:05,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:22:05,996 INFO L225 Difference]: With dead ends: 1782 [2024-11-28 03:22:05,996 INFO L226 Difference]: Without dead ends: 1781 [2024-11-28 03:22:05,998 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 482 GetRequests, 337 SyntacticMatches, 4 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9058 ImplicationChecksByTransitivity, 25.8s TimeCoverageRelationStatistics Valid=5570, Invalid=14736, Unknown=0, NotChecked=0, Total=20306 [2024-11-28 03:22:05,998 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 1856 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 2904 mSolverCounterSat, 593 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1860 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 3497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 593 IncrementalHoareTripleChecker+Valid, 2904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:22:05,999 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1860 Valid, 623 Invalid, 3497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [593 Valid, 2904 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2024-11-28 03:22:05,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1781 states. [2024-11-28 03:22:06,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1781 to 954. [2024-11-28 03:22:06,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 954 states, 824 states have (on average 1.095873786407767) internal successors, (903), 827 states have internal predecessors, (903), 125 states have call successors, (125), 1 states have call predecessors, (125), 1 states have return successors, (125), 125 states have call predecessors, (125), 125 states have call successors, (125) [2024-11-28 03:22:06,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1153 transitions. [2024-11-28 03:22:06,442 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1153 transitions. Word has length 188 [2024-11-28 03:22:06,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:22:06,443 INFO L471 AbstractCegarLoop]: Abstraction has 954 states and 1153 transitions. [2024-11-28 03:22:06,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 5.022222222222222) internal successors, (226), 46 states have internal predecessors, (226), 20 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 20 states have call predecessors, (54), 20 states have call successors, (54) [2024-11-28 03:22:06,443 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1153 transitions. [2024-11-28 03:22:06,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-28 03:22:06,445 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:22:06,445 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2024-11-28 03:22:06,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2024-11-28 03:22:06,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:22:06,649 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:22:06,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:22:06,650 INFO L85 PathProgramCache]: Analyzing trace with hash -2061555125, now seen corresponding path program 6 times [2024-11-28 03:22:06,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:22:06,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110197589] [2024-11-28 03:22:06,650 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 03:22:06,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:22:06,697 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2024-11-28 03:22:06,697 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 03:22:06,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1974153773] [2024-11-28 03:22:06,698 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 03:22:06,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:22:06,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:22:06,707 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:22:06,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-11-28 03:22:06,787 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2024-11-28 03:22:06,788 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:22:06,789 INFO L256 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 03:22:06,790 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:22:07,361 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 890 trivial. 0 not checked. [2024-11-28 03:22:07,362 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:22:07,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:22:07,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110197589] [2024-11-28 03:22:07,362 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:22:07,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1974153773] [2024-11-28 03:22:07,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1974153773] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:22:07,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:22:07,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:22:07,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821705543] [2024-11-28 03:22:07,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:22:07,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:22:07,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:22:07,363 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:22:07,363 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:22:07,363 INFO L87 Difference]: Start difference. First operand 954 states and 1153 transitions. Second operand has 11 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 03:22:08,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:22:08,022 INFO L93 Difference]: Finished difference Result 970 states and 1173 transitions. [2024-11-28 03:22:08,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:22:08,022 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 192 [2024-11-28 03:22:08,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:22:08,028 INFO L225 Difference]: With dead ends: 970 [2024-11-28 03:22:08,028 INFO L226 Difference]: Without dead ends: 969 [2024-11-28 03:22:08,029 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:22:08,029 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 11 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:22:08,029 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 61 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:22:08,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 969 states. [2024-11-28 03:22:08,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 969 to 909. [2024-11-28 03:22:08,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 784 states have (on average 1.0803571428571428) internal successors, (847), 786 states have internal predecessors, (847), 121 states have call successors, (121), 1 states have call predecessors, (121), 1 states have return successors, (121), 121 states have call predecessors, (121), 121 states have call successors, (121) [2024-11-28 03:22:08,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1089 transitions. [2024-11-28 03:22:08,364 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1089 transitions. Word has length 192 [2024-11-28 03:22:08,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:22:08,364 INFO L471 AbstractCegarLoop]: Abstraction has 909 states and 1089 transitions. [2024-11-28 03:22:08,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 03:22:08,364 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1089 transitions. [2024-11-28 03:22:08,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-28 03:22:08,365 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:22:08,365 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 1, 1, 1, 1, 1] [2024-11-28 03:22:08,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2024-11-28 03:22:08,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:22:08,566 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:22:08,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:22:08,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1006625458, now seen corresponding path program 2 times [2024-11-28 03:22:08,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:22:08,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8535752] [2024-11-28 03:22:08,566 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:22:08,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:22:08,578 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:22:08,578 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:22:08,861 INFO L134 CoverageAnalysis]: Checked inductivity of 1764 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 03:22:08,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:22:08,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8535752] [2024-11-28 03:22:08,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8535752] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:22:08,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [184750586] [2024-11-28 03:22:08,862 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:22:08,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:22:08,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:22:08,865 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:22:08,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-11-28 03:22:08,966 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:22:08,966 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:22:08,968 INFO L256 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 03:22:08,971 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:22:09,271 INFO L134 CoverageAnalysis]: Checked inductivity of 1764 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 03:22:09,272 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:22:09,934 INFO L134 CoverageAnalysis]: Checked inductivity of 1764 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 03:22:09,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [184750586] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:22:09,934 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:22:09,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2024-11-28 03:22:09,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295649826] [2024-11-28 03:22:09,935 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:22:09,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-28 03:22:09,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:22:09,936 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-28 03:22:09,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-11-28 03:22:09,951 INFO L87 Difference]: Start difference. First operand 909 states and 1089 transitions. Second operand has 21 states, 20 states have (on average 7.1) internal successors, (142), 21 states have internal predecessors, (142), 19 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 19 states have call predecessors, (57), 19 states have call successors, (57) [2024-11-28 03:22:11,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:22:11,769 INFO L93 Difference]: Finished difference Result 2706 states and 3243 transitions. [2024-11-28 03:22:11,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 03:22:11,769 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 7.1) internal successors, (142), 21 states have internal predecessors, (142), 19 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 19 states have call predecessors, (57), 19 states have call successors, (57) Word has length 202 [2024-11-28 03:22:11,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:22:11,780 INFO L225 Difference]: With dead ends: 2706 [2024-11-28 03:22:11,781 INFO L226 Difference]: Without dead ends: 2705 [2024-11-28 03:22:11,782 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 393 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-11-28 03:22:11,782 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 574 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 610 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:22:11,782 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [610 Valid, 460 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:22:11,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2705 states. [2024-11-28 03:22:12,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2705 to 1009. [2024-11-28 03:22:12,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 854 states have (on average 1.085480093676815) internal successors, (927), 856 states have internal predecessors, (927), 151 states have call successors, (151), 1 states have call predecessors, (151), 1 states have return successors, (151), 151 states have call predecessors, (151), 151 states have call successors, (151) [2024-11-28 03:22:12,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1229 transitions. [2024-11-28 03:22:12,162 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1229 transitions. Word has length 202 [2024-11-28 03:22:12,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:22:12,162 INFO L471 AbstractCegarLoop]: Abstraction has 1009 states and 1229 transitions. [2024-11-28 03:22:12,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 7.1) internal successors, (142), 21 states have internal predecessors, (142), 19 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 19 states have call predecessors, (57), 19 states have call successors, (57) [2024-11-28 03:22:12,163 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1229 transitions. [2024-11-28 03:22:12,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-11-28 03:22:12,164 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:22:12,164 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2024-11-28 03:22:12,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2024-11-28 03:22:12,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:22:12,365 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:22:12,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:22:12,365 INFO L85 PathProgramCache]: Analyzing trace with hash -2040347754, now seen corresponding path program 2 times [2024-11-28 03:22:12,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:22:12,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550010969] [2024-11-28 03:22:12,365 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:22:12,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:22:12,385 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:22:12,385 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:22:13,198 INFO L134 CoverageAnalysis]: Checked inductivity of 1198 backedges. 0 proven. 186 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-28 03:22:13,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:22:13,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550010969] [2024-11-28 03:22:13,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550010969] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:22:13,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1820687472] [2024-11-28 03:22:13,199 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:22:13,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:22:13,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:22:13,201 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:22:13,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-11-28 03:22:13,299 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:22:13,300 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:22:13,302 INFO L256 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-28 03:22:13,305 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:22:15,117 INFO L134 CoverageAnalysis]: Checked inductivity of 1198 backedges. 0 proven. 186 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-28 03:22:15,117 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:22:29,065 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse15 (div |c_ULTIMATE.start_main_~d~0#1| 4)) (.cse3 (div |c_ULTIMATE.start_main_~d~0#1| 2))) (let ((.cse9 (* (- 1) .cse3)) (.cse8 (* (div (+ |c_ULTIMATE.start_main_~r~0#1| (- 2147483651)) 3) 8)) (.cse10 (+ .cse15 1)) (.cse14 (< |c_ULTIMATE.start_main_~r~0#1| 2147483648)) (.cse2 (mod (+ .cse3 1) 2)) (.cse4 (div (+ (- 1) .cse3) 2)) (.cse7 (* (- 1) |c_ULTIMATE.start_main_~d~0#1|)) (.cse11 (* .cse3 (- 3))) (.cse6 (* (div (+ (- 2147483648) |c_ULTIMATE.start_main_~r~0#1|) 15) 8)) (.cse1 (<= |c_ULTIMATE.start_main_~r~0#1| (+ .cse3 2147483654 (* 7 (div |c_ULTIMATE.start_main_~d~0#1| 16))))) (.cse0 (mod |c_ULTIMATE.start_main_~d~0#1| 2)) (.cse5 (* 2 |c_ULTIMATE.start_main_~r~0#1|)) (.cse12 (* (div |c_ULTIMATE.start_main_~d~0#1| 8) 3)) (.cse13 (* .cse15 2))) (and (or (not (= .cse0 0)) (and .cse1 (forall ((|v_ULTIMATE.start_main_~r~0#1_97| Int)) (or (< (+ .cse2 |c_ULTIMATE.start_main_~r~0#1|) (+ .cse3 |v_ULTIMATE.start_main_~r~0#1_97| 1)) (< (* 2 (div (+ (* 2 |v_ULTIMATE.start_main_~r~0#1_97|) (- 4294967297)) 7)) (+ .cse4 1)))) (<= (+ (* (div (+ (- 4294967306) .cse5) 3) 2) 1) (* 5 .cse4)) (<= (+ .cse6 1) .cse3) (<= (+ 2 (* (div (+ .cse7 (- 4294967302) .cse5) 7) 4)) .cse3) (<= (+ 7 .cse8 (* (div .cse9 2) 8)) .cse3) (forall ((|v_ULTIMATE.start_main_~r~0#1_97| Int)) (or (< |c_ULTIMATE.start_main_~r~0#1| (+ .cse3 |v_ULTIMATE.start_main_~r~0#1_97|)) (< (* 2 (div (+ (* 2 |v_ULTIMATE.start_main_~r~0#1_97|) (- 4294967297)) 7)) .cse10))) (<= (+ (* (div (+ (- 4294967307) .cse7 .cse5) 7) 4) 4) .cse3) (<= (+ (* 8 (div (+ (- 4294967303) .cse11 .cse5) 6)) 6) .cse3) (or (< .cse5 (+ .cse12 .cse13 4294967295 |c_ULTIMATE.start_main_~d~0#1|)) .cse14))) (forall ((|v_ULTIMATE.start_main_~r~0#1_97| Int)) (or (< (* 2 (div (+ (* 2 |v_ULTIMATE.start_main_~r~0#1_97|) (- 4294967297)) 7)) (+ 2 .cse4)) (< |c_ULTIMATE.start_main_~r~0#1| (+ .cse3 |v_ULTIMATE.start_main_~r~0#1_97| 1)))) (<= (+ (* (div (+ (- 1) .cse9) 2) 8) .cse8 6) .cse3) (<= .cse5 (+ 4294967308 (* .cse15 6) (* 3 (div (+ (- 1) .cse15) 2)))) (forall ((|v_ULTIMATE.start_main_~r~0#1_97| Int)) (or (< |c_ULTIMATE.start_main_~r~0#1| (+ .cse13 2 |v_ULTIMATE.start_main_~r~0#1_97|)) (< (* 2 (div (+ (* 2 |v_ULTIMATE.start_main_~r~0#1_97|) (- 4294967297)) 7)) .cse10))) (or .cse14 (< (+ .cse0 .cse2 .cse5) (+ .cse3 |c_ULTIMATE.start_main_~d~0#1| (* 3 (div (+ (- 1) .cse4) 2)) 4294967301))) (<= (+ (* (div (+ .cse0 (- 4294967304) .cse7 .cse5) 7) 4) 1) .cse3) (<= (+ 5 (* 8 (div (+ .cse11 (- 4294967306) .cse5) 6))) .cse3) (<= |c_ULTIMATE.start_main_~r~0#1| (+ .cse3 (* 7 (div (+ .cse3 (- 7)) 8)) 2147483662)) (<= .cse6 .cse3) (or (< |c_ULTIMATE.start_main_~d~0#1| 0) (and .cse1 (<= (+ .cse0 .cse5) (+ .cse12 .cse13 |c_ULTIMATE.start_main_~d~0#1| 4294967294))))))) is different from false [2024-11-28 03:22:34,138 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse5 (div |c_ULTIMATE.start_main_~d~0#1| 4)) (.cse1 (div |c_ULTIMATE.start_main_~d~0#1| 2))) (let ((.cse0 (div (+ (- 1) .cse1) 2)) (.cse3 (* (div (+ |c_ULTIMATE.start_main_~r~0#1| (- 2147483651)) 3) 8)) (.cse2 (* (- 1) .cse1)) (.cse7 (+ .cse5 1)) (.cse6 (* .cse5 2)) (.cse11 (mod |c_ULTIMATE.start_main_~d~0#1| 2)) (.cse9 (* (- 1) |c_ULTIMATE.start_main_~d~0#1|)) (.cse10 (* .cse1 (- 3))) (.cse4 (* 2 |c_ULTIMATE.start_main_~r~0#1|)) (.cse8 (* (div (+ (- 2147483648) |c_ULTIMATE.start_main_~r~0#1|) 15) 8))) (and (forall ((|v_ULTIMATE.start_main_~r~0#1_97| Int)) (or (< (* 2 (div (+ (* 2 |v_ULTIMATE.start_main_~r~0#1_97|) (- 4294967297)) 7)) (+ 2 .cse0)) (< |c_ULTIMATE.start_main_~r~0#1| (+ .cse1 |v_ULTIMATE.start_main_~r~0#1_97| 1)))) (<= (+ (* (div (+ (- 1) .cse2) 2) 8) .cse3 6) .cse1) (<= .cse4 (+ 4294967308 (* .cse5 6) (* 3 (div (+ (- 1) .cse5) 2)))) (forall ((|v_ULTIMATE.start_main_~r~0#1_97| Int)) (or (< |c_ULTIMATE.start_main_~r~0#1| (+ .cse6 2 |v_ULTIMATE.start_main_~r~0#1_97|)) (< (* 2 (div (+ (* 2 |v_ULTIMATE.start_main_~r~0#1_97|) (- 4294967297)) 7)) .cse7))) (or (and (<= |c_ULTIMATE.start_main_~r~0#1| (+ .cse1 2147483654 (* 7 (div |c_ULTIMATE.start_main_~d~0#1| 16)))) (forall ((|v_ULTIMATE.start_main_~r~0#1_97| Int)) (or (< (+ (mod (+ .cse1 1) 2) |c_ULTIMATE.start_main_~r~0#1|) (+ .cse1 |v_ULTIMATE.start_main_~r~0#1_97| 1)) (< (* 2 (div (+ (* 2 |v_ULTIMATE.start_main_~r~0#1_97|) (- 4294967297)) 7)) (+ .cse0 1)))) (<= (+ (* (div (+ (- 4294967306) .cse4) 3) 2) 1) (* 5 .cse0)) (<= (+ .cse8 1) .cse1) (<= (+ 2 (* (div (+ .cse9 (- 4294967302) .cse4) 7) 4)) .cse1) (<= (+ 7 .cse3 (* (div .cse2 2) 8)) .cse1) (forall ((|v_ULTIMATE.start_main_~r~0#1_97| Int)) (or (< |c_ULTIMATE.start_main_~r~0#1| (+ .cse1 |v_ULTIMATE.start_main_~r~0#1_97|)) (< (* 2 (div (+ (* 2 |v_ULTIMATE.start_main_~r~0#1_97|) (- 4294967297)) 7)) .cse7))) (<= (+ (* 8 (div (+ (- 4294967303) .cse10 .cse4) 6)) 6) .cse1)) (not (= .cse11 0))) (or (< (+ .cse11 .cse4) (+ (* (div |c_ULTIMATE.start_main_~d~0#1| 8) 3) .cse6 4294967295 |c_ULTIMATE.start_main_~d~0#1|)) (< |c_ULTIMATE.start_main_~d~0#1| 0)) (<= (+ (* (div (+ .cse11 (- 4294967304) .cse9 .cse4) 7) 4) 1) .cse1) (<= (+ 5 (* 8 (div (+ .cse10 (- 4294967306) .cse4) 6))) .cse1) (<= |c_ULTIMATE.start_main_~r~0#1| (+ .cse1 (* 7 (div (+ .cse1 (- 7)) 8)) 2147483662)) (<= .cse8 .cse1)))) is different from false [2024-11-28 03:22:35,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1820687472] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:22:35,153 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:22:35,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 21] total 38 [2024-11-28 03:22:35,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136785635] [2024-11-28 03:22:35,153 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:22:35,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-11-28 03:22:35,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:22:35,154 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-11-28 03:22:35,154 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=286, Invalid=1790, Unknown=2, NotChecked=178, Total=2256 [2024-11-28 03:22:35,155 INFO L87 Difference]: Start difference. First operand 1009 states and 1229 transitions. Second operand has 39 states, 38 states have (on average 5.157894736842105) internal successors, (196), 39 states have internal predecessors, (196), 17 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 17 states have call predecessors, (46), 17 states have call successors, (46) [2024-11-28 03:22:40,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:22:40,691 INFO L93 Difference]: Finished difference Result 1597 states and 1925 transitions. [2024-11-28 03:22:40,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-11-28 03:22:40,692 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 5.157894736842105) internal successors, (196), 39 states have internal predecessors, (196), 17 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 17 states have call predecessors, (46), 17 states have call successors, (46) Word has length 212 [2024-11-28 03:22:40,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:22:40,698 INFO L225 Difference]: With dead ends: 1597 [2024-11-28 03:22:40,698 INFO L226 Difference]: Without dead ends: 1596 [2024-11-28 03:22:40,699 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1368 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=1080, Invalid=5406, Unknown=2, NotChecked=318, Total=6806 [2024-11-28 03:22:40,700 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 1000 mSDsluCounter, 970 mSDsCounter, 0 mSdLazyCounter, 2553 mSolverCounterSat, 276 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1005 SdHoareTripleChecker+Valid, 1050 SdHoareTripleChecker+Invalid, 2829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 276 IncrementalHoareTripleChecker+Valid, 2553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:22:40,700 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1005 Valid, 1050 Invalid, 2829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [276 Valid, 2553 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-28 03:22:40,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1596 states. [2024-11-28 03:22:41,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1596 to 1283. [2024-11-28 03:22:41,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1283 states, 1098 states have (on average 1.0828779599271403) internal successors, (1189), 1100 states have internal predecessors, (1189), 181 states have call successors, (181), 1 states have call predecessors, (181), 1 states have return successors, (181), 181 states have call predecessors, (181), 181 states have call successors, (181) [2024-11-28 03:22:41,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1283 states to 1283 states and 1551 transitions. [2024-11-28 03:22:41,109 INFO L78 Accepts]: Start accepts. Automaton has 1283 states and 1551 transitions. Word has length 212 [2024-11-28 03:22:41,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:22:41,110 INFO L471 AbstractCegarLoop]: Abstraction has 1283 states and 1551 transitions. [2024-11-28 03:22:41,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 5.157894736842105) internal successors, (196), 39 states have internal predecessors, (196), 17 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 17 states have call predecessors, (46), 17 states have call successors, (46) [2024-11-28 03:22:41,110 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 1551 transitions. [2024-11-28 03:22:41,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-11-28 03:22:41,112 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:22:41,112 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:22:41,121 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2024-11-28 03:22:41,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:22:41,313 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:22:41,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:22:41,313 INFO L85 PathProgramCache]: Analyzing trace with hash -826093278, now seen corresponding path program 2 times [2024-11-28 03:22:41,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:22:41,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601557438] [2024-11-28 03:22:41,313 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:22:41,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:22:41,331 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:22:41,332 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:22:42,084 INFO L134 CoverageAnalysis]: Checked inductivity of 1518 backedges. 0 proven. 218 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-28 03:22:42,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:22:42,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601557438] [2024-11-28 03:22:42,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601557438] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:22:42,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [180762513] [2024-11-28 03:22:42,084 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:22:42,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:22:42,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:22:42,089 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:22:42,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-11-28 03:22:42,185 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:22:42,185 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:22:42,187 INFO L256 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-28 03:22:42,190 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:22:43,109 INFO L134 CoverageAnalysis]: Checked inductivity of 1518 backedges. 0 proven. 218 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-28 03:22:43,110 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:22:59,459 INFO L134 CoverageAnalysis]: Checked inductivity of 1518 backedges. 0 proven. 218 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-28 03:22:59,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [180762513] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:22:59,459 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:22:59,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11, 11] total 36 [2024-11-28 03:22:59,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376383323] [2024-11-28 03:22:59,460 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:22:59,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-28 03:22:59,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:22:59,461 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-28 03:22:59,461 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=419, Invalid=913, Unknown=0, NotChecked=0, Total=1332 [2024-11-28 03:22:59,462 INFO L87 Difference]: Start difference. First operand 1283 states and 1551 transitions. Second operand has 37 states, 36 states have (on average 8.083333333333334) internal successors, (291), 37 states have internal predecessors, (291), 27 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 27 states have call predecessors, (78), 27 states have call successors, (78) [2024-11-28 03:23:22,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:23:22,748 INFO L93 Difference]: Finished difference Result 2479 states and 2966 transitions. [2024-11-28 03:23:22,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-28 03:23:22,749 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 8.083333333333334) internal successors, (291), 37 states have internal predecessors, (291), 27 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 27 states have call predecessors, (78), 27 states have call successors, (78) Word has length 228 [2024-11-28 03:23:22,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:23:22,764 INFO L225 Difference]: With dead ends: 2479 [2024-11-28 03:23:22,764 INFO L226 Difference]: Without dead ends: 2478 [2024-11-28 03:23:22,766 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 506 GetRequests, 435 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1680 ImplicationChecksByTransitivity, 19.7s TimeCoverageRelationStatistics Valid=1868, Invalid=3388, Unknown=0, NotChecked=0, Total=5256 [2024-11-28 03:23:22,766 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 1088 mSDsluCounter, 1187 mSDsCounter, 0 mSdLazyCounter, 1785 mSolverCounterSat, 304 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1095 SdHoareTripleChecker+Valid, 1299 SdHoareTripleChecker+Invalid, 2089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 304 IncrementalHoareTripleChecker+Valid, 1785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:23:22,767 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1095 Valid, 1299 Invalid, 2089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [304 Valid, 1785 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-28 03:23:22,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2478 states. [2024-11-28 03:23:23,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2478 to 1981. [2024-11-28 03:23:23,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1981 states, 1708 states have (on average 1.0778688524590163) internal successors, (1841), 1710 states have internal predecessors, (1841), 269 states have call successors, (269), 1 states have call predecessors, (269), 1 states have return successors, (269), 269 states have call predecessors, (269), 269 states have call successors, (269) [2024-11-28 03:23:23,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1981 states to 1981 states and 2379 transitions. [2024-11-28 03:23:23,992 INFO L78 Accepts]: Start accepts. Automaton has 1981 states and 2379 transitions. Word has length 228 [2024-11-28 03:23:23,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:23:23,992 INFO L471 AbstractCegarLoop]: Abstraction has 1981 states and 2379 transitions. [2024-11-28 03:23:23,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 8.083333333333334) internal successors, (291), 37 states have internal predecessors, (291), 27 states have call successors, (78), 1 states have call predecessors, (78), 1 states have return successors, (78), 27 states have call predecessors, (78), 27 states have call successors, (78) [2024-11-28 03:23:23,993 INFO L276 IsEmpty]: Start isEmpty. Operand 1981 states and 2379 transitions. [2024-11-28 03:23:23,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2024-11-28 03:23:23,995 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:23:23,995 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2024-11-28 03:23:24,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2024-11-28 03:23:24,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2024-11-28 03:23:24,195 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:23:24,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:23:24,196 INFO L85 PathProgramCache]: Analyzing trace with hash -645397132, now seen corresponding path program 3 times [2024-11-28 03:23:24,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:23:24,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512308693] [2024-11-28 03:23:24,196 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:23:24,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:23:24,233 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-11-28 03:23:24,233 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:23:25,110 INFO L134 CoverageAnalysis]: Checked inductivity of 1532 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 1388 trivial. 0 not checked. [2024-11-28 03:23:25,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:23:25,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512308693] [2024-11-28 03:23:25,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512308693] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:23:25,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1612379736] [2024-11-28 03:23:25,111 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:23:25,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:23:25,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:23:25,116 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:23:25,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2024-11-28 03:23:25,227 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-11-28 03:23:25,227 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:23:25,229 INFO L256 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-28 03:23:25,233 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:23:28,065 INFO L134 CoverageAnalysis]: Checked inductivity of 1532 backedges. 223 proven. 136 refuted. 0 times theorem prover too weak. 1173 trivial. 0 not checked. [2024-11-28 03:23:28,066 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:24:39,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1612379736] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:24:39,528 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:24:39,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 33 [2024-11-28 03:24:39,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818222120] [2024-11-28 03:24:39,528 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:24:39,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-28 03:24:39,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:24:39,529 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-28 03:24:39,529 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1403, Unknown=16, NotChecked=0, Total=1560 [2024-11-28 03:24:39,530 INFO L87 Difference]: Start difference. First operand 1981 states and 2379 transitions. Second operand has 34 states, 33 states have (on average 5.03030303030303) internal successors, (166), 34 states have internal predecessors, (166), 11 states have call successors, (28), 1 states have call predecessors, (28), 2 states have return successors, (29), 12 states have call predecessors, (29), 11 states have call successors, (29) [2024-11-28 03:24:49,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:24:49,880 INFO L93 Difference]: Finished difference Result 3570 states and 4272 transitions. [2024-11-28 03:24:49,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-11-28 03:24:49,880 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 5.03030303030303) internal successors, (166), 34 states have internal predecessors, (166), 11 states have call successors, (28), 1 states have call predecessors, (28), 2 states have return successors, (29), 12 states have call predecessors, (29), 11 states have call successors, (29) Word has length 234 [2024-11-28 03:24:49,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:24:49,887 INFO L225 Difference]: With dead ends: 3570 [2024-11-28 03:24:49,887 INFO L226 Difference]: Without dead ends: 3569 [2024-11-28 03:24:49,889 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2059 ImplicationChecksByTransitivity, 75.5s TimeCoverageRelationStatistics Valid=1834, Invalid=7080, Unknown=16, NotChecked=0, Total=8930 [2024-11-28 03:24:49,889 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 920 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 2602 mSolverCounterSat, 338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 922 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 2940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 2602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:24:49,889 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [922 Valid, 514 Invalid, 2940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [338 Valid, 2602 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-28 03:24:49,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3569 states. [2024-11-28 03:24:51,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3569 to 2245. [2024-11-28 03:24:51,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2245 states, 1938 states have (on average 1.0794633642930858) internal successors, (2092), 1940 states have internal predecessors, (2092), 303 states have call successors, (303), 1 states have call predecessors, (303), 1 states have return successors, (303), 303 states have call predecessors, (303), 303 states have call successors, (303) [2024-11-28 03:24:51,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2245 states to 2245 states and 2698 transitions. [2024-11-28 03:24:51,186 INFO L78 Accepts]: Start accepts. Automaton has 2245 states and 2698 transitions. Word has length 234 [2024-11-28 03:24:51,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:24:51,186 INFO L471 AbstractCegarLoop]: Abstraction has 2245 states and 2698 transitions. [2024-11-28 03:24:51,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 5.03030303030303) internal successors, (166), 34 states have internal predecessors, (166), 11 states have call successors, (28), 1 states have call predecessors, (28), 2 states have return successors, (29), 12 states have call predecessors, (29), 11 states have call successors, (29) [2024-11-28 03:24:51,187 INFO L276 IsEmpty]: Start isEmpty. Operand 2245 states and 2698 transitions. [2024-11-28 03:24:51,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-11-28 03:24:51,188 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:24:51,189 INFO L218 NwaCegarLoop]: trace histogram [24, 24, 24, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:24:51,196 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2024-11-28 03:24:51,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2024-11-28 03:24:51,389 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:24:51,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:24:51,389 INFO L85 PathProgramCache]: Analyzing trace with hash 92850626, now seen corresponding path program 3 times [2024-11-28 03:24:51,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:24:51,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938506853] [2024-11-28 03:24:51,389 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:24:51,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:24:51,449 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2024-11-28 03:24:51,449 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:24:53,189 INFO L134 CoverageAnalysis]: Checked inductivity of 1402 backedges. 40 proven. 258 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-11-28 03:24:53,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:24:53,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938506853] [2024-11-28 03:24:53,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938506853] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:24:53,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376567204] [2024-11-28 03:24:53,190 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:24:53,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:24:53,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:24:53,192 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:24:53,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-11-28 03:24:53,259 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-28 03:24:53,259 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:24:53,260 INFO L256 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 03:24:53,263 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:24:55,091 INFO L134 CoverageAnalysis]: Checked inductivity of 1402 backedges. 107 proven. 64 refuted. 0 times theorem prover too weak. 1231 trivial. 0 not checked. [2024-11-28 03:24:55,091 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:24:55,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376567204] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:24:55,570 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:24:55,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 12] total 32 [2024-11-28 03:24:55,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236608282] [2024-11-28 03:24:55,571 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:24:55,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-28 03:24:55,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:24:55,572 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-28 03:24:55,572 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=234, Invalid=956, Unknown=0, NotChecked=0, Total=1190 [2024-11-28 03:24:55,572 INFO L87 Difference]: Start difference. First operand 2245 states and 2698 transitions. Second operand has 33 states, 32 states have (on average 5.5) internal successors, (176), 33 states have internal predecessors, (176), 12 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (31), 12 states have call predecessors, (31), 12 states have call successors, (31) [2024-11-28 03:25:00,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:25:00,076 INFO L93 Difference]: Finished difference Result 2616 states and 3134 transitions. [2024-11-28 03:25:00,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-28 03:25:00,076 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 5.5) internal successors, (176), 33 states have internal predecessors, (176), 12 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (31), 12 states have call predecessors, (31), 12 states have call successors, (31) Word has length 240 [2024-11-28 03:25:00,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:25:00,083 INFO L225 Difference]: With dead ends: 2616 [2024-11-28 03:25:00,084 INFO L226 Difference]: Without dead ends: 2064 [2024-11-28 03:25:00,086 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 243 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1053 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1042, Invalid=2864, Unknown=0, NotChecked=0, Total=3906 [2024-11-28 03:25:00,086 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 341 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 1058 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 1199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 1058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:25:00,086 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 376 Invalid, 1199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 1058 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 03:25:00,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2064 states. [2024-11-28 03:25:00,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2064 to 822. [2024-11-28 03:25:00,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 822 states, 690 states have (on average 1.0695652173913044) internal successors, (738), 691 states have internal predecessors, (738), 129 states have call successors, (129), 1 states have call predecessors, (129), 1 states have return successors, (129), 129 states have call predecessors, (129), 129 states have call successors, (129) [2024-11-28 03:25:00,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 822 states to 822 states and 996 transitions. [2024-11-28 03:25:00,590 INFO L78 Accepts]: Start accepts. Automaton has 822 states and 996 transitions. Word has length 240 [2024-11-28 03:25:00,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:25:00,590 INFO L471 AbstractCegarLoop]: Abstraction has 822 states and 996 transitions. [2024-11-28 03:25:00,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 5.5) internal successors, (176), 33 states have internal predecessors, (176), 12 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (31), 12 states have call predecessors, (31), 12 states have call successors, (31) [2024-11-28 03:25:00,591 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states and 996 transitions. [2024-11-28 03:25:00,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2024-11-28 03:25:00,593 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:25:00,593 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2024-11-28 03:25:00,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2024-11-28 03:25:00,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2024-11-28 03:25:00,794 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-28 03:25:00,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:25:00,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1211493157, now seen corresponding path program 4 times [2024-11-28 03:25:00,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:25:00,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138338106] [2024-11-28 03:25:00,795 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 03:25:00,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:25:00,842 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 03:25:00,842 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:25:02,366 INFO L134 CoverageAnalysis]: Checked inductivity of 1814 backedges. 0 proven. 302 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-28 03:25:02,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:25:02,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138338106] [2024-11-28 03:25:02,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138338106] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:25:02,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602243867] [2024-11-28 03:25:02,367 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 03:25:02,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:25:02,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:25:02,369 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:25:02,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91825d79-8192-4fbf-9ff4-19f3b40fba70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2024-11-28 03:25:02,483 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 03:25:02,483 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:25:02,485 INFO L256 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-11-28 03:25:02,488 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:30:47,142 WARN L286 SmtUtils]: Spent 57.41s on a formula simplification. DAG size of input: 939 DAG size of output: 744 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)