./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme --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 0286582125bb2879636b8cf3b934bed172850a3a3b0d880c07306d10439134a7 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:00:54,998 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:00:55,116 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-26 12:00:55,129 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:00:55,130 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:00:55,169 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:00:55,171 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:00:55,172 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:00:55,173 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:00:55,178 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:00:55,178 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:00:55,180 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:00:55,181 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:00:55,181 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:00:55,182 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:00:55,182 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:00:55,183 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:00:55,183 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:00:55,186 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:00:55,186 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:00:55,187 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:00:55,187 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:00:55,188 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:00:55,188 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:00:55,189 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 12:00:55,189 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:00:55,190 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:00:55,190 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:00:55,190 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:00:55,191 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:00:55,193 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:00:55,193 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:00:55,193 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:00:55,194 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:00:55,194 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:00:55,194 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:00:55,194 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:00:55,195 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:00:55,195 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:00:55,195 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:00:55,196 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:00:55,196 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:00:55,196 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:00:55,197 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:00:55,197 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0286582125bb2879636b8cf3b934bed172850a3a3b0d880c07306d10439134a7 [2023-11-26 12:00:55,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:00:55,526 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:00:55,529 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:00:55,530 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:00:55,531 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:00:55,532 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i [2023-11-26 12:00:58,702 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:00:59,006 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:00:59,007 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i [2023-11-26 12:00:59,017 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/data/877ba903e/e1868d5d673d47a48792941a88b73929/FLAG62edfcf76 [2023-11-26 12:00:59,037 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/data/877ba903e/e1868d5d673d47a48792941a88b73929 [2023-11-26 12:00:59,048 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:00:59,051 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:00:59,054 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:00:59,054 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:00:59,060 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:00:59,061 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:00:59" (1/1) ... [2023-11-26 12:00:59,062 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e77daf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:59, skipping insertion in model container [2023-11-26 12:00:59,063 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:00:59" (1/1) ... [2023-11-26 12:00:59,094 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:00:59,362 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:00:59,375 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:00:59,426 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:00:59,449 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:00:59,450 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:59 WrapperNode [2023-11-26 12:00:59,450 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:00:59,451 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:00:59,451 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:00:59,452 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:00:59,460 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:59" (1/1) ... [2023-11-26 12:00:59,487 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:59" (1/1) ... [2023-11-26 12:00:59,519 INFO L138 Inliner]: procedures = 18, calls = 30, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 195 [2023-11-26 12:00:59,519 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:00:59,520 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:00:59,520 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:00:59,520 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:00:59,532 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:59" (1/1) ... [2023-11-26 12:00:59,532 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:59" (1/1) ... [2023-11-26 12:00:59,535 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:59" (1/1) ... [2023-11-26 12:00:59,557 INFO L175 MemorySlicer]: Split 14 memory accesses to 3 slices as follows [2, 9, 3]. 64 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 3 writes are split as follows [0, 2, 1]. [2023-11-26 12:00:59,557 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:59" (1/1) ... [2023-11-26 12:00:59,563 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:59" (1/1) ... [2023-11-26 12:00:59,571 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:59" (1/1) ... [2023-11-26 12:00:59,576 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:59" (1/1) ... [2023-11-26 12:00:59,578 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:59" (1/1) ... [2023-11-26 12:00:59,580 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:59" (1/1) ... [2023-11-26 12:00:59,584 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:00:59,585 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:00:59,585 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:00:59,585 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:00:59,586 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:59" (1/1) ... [2023-11-26 12:00:59,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:00:59,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:59,630 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:59,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:00:59,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:00:59,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 12:00:59,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 12:00:59,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 12:00:59,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 12:00:59,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 12:00:59,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 12:00:59,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 12:00:59,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:00:59,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:00:59,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 12:00:59,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 12:00:59,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-26 12:00:59,679 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-26 12:00:59,679 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-26 12:00:59,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 12:00:59,766 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:00:59,772 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:01:00,123 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:01:00,167 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:01:00,168 INFO L309 CfgBuilder]: Removed 10 assume(true) statements. [2023-11-26 12:01:00,168 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:01:00 BoogieIcfgContainer [2023-11-26 12:01:00,169 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:01:00,172 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:01:00,172 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:01:00,176 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:01:00,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:00:59" (1/3) ... [2023-11-26 12:01:00,177 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10577412 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:01:00, skipping insertion in model container [2023-11-26 12:01:00,178 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:59" (2/3) ... [2023-11-26 12:01:00,178 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10577412 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:01:00, skipping insertion in model container [2023-11-26 12:01:00,178 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:01:00" (3/3) ... [2023-11-26 12:01:00,180 INFO L112 eAbstractionObserver]: Analyzing ICFG data_structures_set_multi_proc_trivial_ground.i [2023-11-26 12:01:00,210 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:01:00,210 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2023-11-26 12:01:00,266 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:01:00,276 INFO L357 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, mHoare=true, 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;@25eae71f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:01:00,277 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2023-11-26 12:01:00,283 INFO L276 IsEmpty]: Start isEmpty. Operand has 94 states, 61 states have (on average 1.8524590163934427) internal successors, (113), 89 states have internal predecessors, (113), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 12:01:00,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-26 12:01:00,291 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:00,293 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-26 12:01:00,294 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-26 12:01:00,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:00,303 INFO L85 PathProgramCache]: Analyzing trace with hash 274859, now seen corresponding path program 1 times [2023-11-26 12:01:00,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:00,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955841167] [2023-11-26 12:01:00,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:00,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:00,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:00,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:01:00,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:00,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955841167] [2023-11-26 12:01:00,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955841167] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:00,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:00,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:01:00,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471492520] [2023-11-26 12:01:00,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:00,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:01:00,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:00,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:01:00,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:01:00,798 INFO L87 Difference]: Start difference. First operand has 94 states, 61 states have (on average 1.8524590163934427) internal successors, (113), 89 states have internal predecessors, (113), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2023-11-26 12:01:01,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:01,150 INFO L93 Difference]: Finished difference Result 260 states and 345 transitions. [2023-11-26 12:01:01,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:01:01,153 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2023-11-26 12:01:01,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:01,162 INFO L225 Difference]: With dead ends: 260 [2023-11-26 12:01:01,163 INFO L226 Difference]: Without dead ends: 166 [2023-11-26 12:01:01,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:01:01,172 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 79 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:01,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 224 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 12:01:01,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2023-11-26 12:01:01,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 102. [2023-11-26 12:01:01,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 70 states have (on average 1.5857142857142856) internal successors, (111), 97 states have internal predecessors, (111), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 12:01:01,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 117 transitions. [2023-11-26 12:01:01,243 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 117 transitions. Word has length 3 [2023-11-26 12:01:01,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:01,244 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 117 transitions. [2023-11-26 12:01:01,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2023-11-26 12:01:01,245 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 117 transitions. [2023-11-26 12:01:01,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-26 12:01:01,246 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:01,246 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2023-11-26 12:01:01,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 12:01:01,247 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-26 12:01:01,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:01,249 INFO L85 PathProgramCache]: Analyzing trace with hash -401557255, now seen corresponding path program 1 times [2023-11-26 12:01:01,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:01,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418655299] [2023-11-26 12:01:01,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:01,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:01,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:01,423 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:01:01,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:01,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418655299] [2023-11-26 12:01:01,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418655299] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:01:01,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1649127143] [2023-11-26 12:01:01,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:01,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:01,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:01:01,429 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:01:01,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 12:01:01,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:01,527 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 12:01:01,534 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:01:01,596 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:01:01,596 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:01:01,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1649127143] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:01,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 12:01:01,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2023-11-26 12:01:01,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060133636] [2023-11-26 12:01:01,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:01,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:01:01,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:01,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:01:01,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-26 12:01:01,601 INFO L87 Difference]: Start difference. First operand 102 states and 117 transitions. Second operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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) [2023-11-26 12:01:01,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:01,765 INFO L93 Difference]: Finished difference Result 166 states and 192 transitions. [2023-11-26 12:01:01,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 12:01:01,766 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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 [2023-11-26 12:01:01,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:01,768 INFO L225 Difference]: With dead ends: 166 [2023-11-26 12:01:01,768 INFO L226 Difference]: Without dead ends: 165 [2023-11-26 12:01:01,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-26 12:01:01,771 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 84 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:01,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 295 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:01:01,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2023-11-26 12:01:01,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 101. [2023-11-26 12:01:01,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 70 states have (on average 1.5714285714285714) internal successors, (110), 96 states have internal predecessors, (110), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 12:01:01,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 116 transitions. [2023-11-26 12:01:01,788 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 116 transitions. Word has length 6 [2023-11-26 12:01:01,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:01,788 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 116 transitions. [2023-11-26 12:01:01,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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) [2023-11-26 12:01:01,793 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 116 transitions. [2023-11-26 12:01:01,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-26 12:01:01,794 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:01,794 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2023-11-26 12:01:01,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 12:01:02,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:02,001 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-26 12:01:02,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:02,002 INFO L85 PathProgramCache]: Analyzing trace with hash 436627029, now seen corresponding path program 1 times [2023-11-26 12:01:02,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:02,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238493320] [2023-11-26 12:01:02,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:02,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:02,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:02,063 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 12:01:02,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:02,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238493320] [2023-11-26 12:01:02,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238493320] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:02,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:02,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:01:02,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246651528] [2023-11-26 12:01:02,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:02,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:01:02,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:02,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:01:02,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:02,067 INFO L87 Difference]: Start difference. First operand 101 states and 116 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-11-26 12:01:02,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:02,093 INFO L93 Difference]: Finished difference Result 101 states and 116 transitions. [2023-11-26 12:01:02,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:01:02,094 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2023-11-26 12:01:02,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:02,095 INFO L225 Difference]: With dead ends: 101 [2023-11-26 12:01:02,095 INFO L226 Difference]: Without dead ends: 100 [2023-11-26 12:01:02,096 INFO L412 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 [2023-11-26 12:01:02,098 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 0 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:02,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 182 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:01:02,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-11-26 12:01:02,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 98. [2023-11-26 12:01:02,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 68 states have (on average 1.5735294117647058) internal successors, (107), 93 states have internal predecessors, (107), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 12:01:02,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 113 transitions. [2023-11-26 12:01:02,111 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 113 transitions. Word has length 7 [2023-11-26 12:01:02,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:02,111 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 113 transitions. [2023-11-26 12:01:02,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-11-26 12:01:02,112 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 113 transitions. [2023-11-26 12:01:02,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-26 12:01:02,115 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:02,116 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:02,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 12:01:02,117 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-26 12:01:02,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:02,118 INFO L85 PathProgramCache]: Analyzing trace with hash -175246109, now seen corresponding path program 1 times [2023-11-26 12:01:02,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:02,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471670454] [2023-11-26 12:01:02,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:02,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:02,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:02,216 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:01:02,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:02,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471670454] [2023-11-26 12:01:02,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471670454] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:01:02,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168562630] [2023-11-26 12:01:02,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:02,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:02,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:01:02,219 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:01:02,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 12:01:02,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:02,311 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 12:01:02,313 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:01:02,338 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:01:02,338 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:01:02,374 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:01:02,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1168562630] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:01:02,375 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 12:01:02,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2023-11-26 12:01:02,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747639777] [2023-11-26 12:01:02,376 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 12:01:02,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-26 12:01:02,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:02,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-26 12:01:02,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-26 12:01:02,378 INFO L87 Difference]: Start difference. First operand 98 states and 113 transitions. Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 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) [2023-11-26 12:01:02,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:02,595 INFO L93 Difference]: Finished difference Result 261 states and 303 transitions. [2023-11-26 12:01:02,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 12:01:02,595 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 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 10 [2023-11-26 12:01:02,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:02,597 INFO L225 Difference]: With dead ends: 261 [2023-11-26 12:01:02,598 INFO L226 Difference]: Without dead ends: 168 [2023-11-26 12:01:02,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2023-11-26 12:01:02,600 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 237 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:02,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 360 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 12:01:02,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2023-11-26 12:01:02,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 104. [2023-11-26 12:01:02,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 74 states have (on average 1.527027027027027) internal successors, (113), 99 states have internal predecessors, (113), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 12:01:02,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 119 transitions. [2023-11-26 12:01:02,614 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 119 transitions. Word has length 10 [2023-11-26 12:01:02,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:02,615 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 119 transitions. [2023-11-26 12:01:02,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 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) [2023-11-26 12:01:02,615 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 119 transitions. [2023-11-26 12:01:02,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-26 12:01:02,616 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:02,617 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:02,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 12:01:02,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:02,824 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-26 12:01:02,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:02,824 INFO L85 PathProgramCache]: Analyzing trace with hash -834308189, now seen corresponding path program 2 times [2023-11-26 12:01:02,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:02,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717737187] [2023-11-26 12:01:02,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:02,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:02,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:02,976 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-26 12:01:02,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:02,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717737187] [2023-11-26 12:01:02,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717737187] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:02,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:02,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:01:02,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139403458] [2023-11-26 12:01:02,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:02,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:01:02,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:02,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:01:02,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:01:02,983 INFO L87 Difference]: Start difference. First operand 104 states and 119 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2023-11-26 12:01:03,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:03,054 INFO L93 Difference]: Finished difference Result 215 states and 248 transitions. [2023-11-26 12:01:03,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:01:03,055 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 16 [2023-11-26 12:01:03,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:03,056 INFO L225 Difference]: With dead ends: 215 [2023-11-26 12:01:03,056 INFO L226 Difference]: Without dead ends: 147 [2023-11-26 12:01:03,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:01:03,060 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 43 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:03,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 268 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:01:03,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2023-11-26 12:01:03,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 108. [2023-11-26 12:01:03,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 78 states have (on average 1.5) internal successors, (117), 103 states have internal predecessors, (117), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 12:01:03,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 123 transitions. [2023-11-26 12:01:03,073 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 123 transitions. Word has length 16 [2023-11-26 12:01:03,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:03,074 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 123 transitions. [2023-11-26 12:01:03,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2023-11-26 12:01:03,075 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 123 transitions. [2023-11-26 12:01:03,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-26 12:01:03,076 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:03,076 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:03,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 12:01:03,076 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-26 12:01:03,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:03,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1411862073, now seen corresponding path program 1 times [2023-11-26 12:01:03,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:03,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320720060] [2023-11-26 12:01:03,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:03,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:03,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:03,144 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-26 12:01:03,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:03,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320720060] [2023-11-26 12:01:03,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320720060] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:03,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:03,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:01:03,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899172511] [2023-11-26 12:01:03,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:03,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:01:03,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:03,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:01:03,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:01:03,147 INFO L87 Difference]: Start difference. First operand 108 states and 123 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:03,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:03,233 INFO L93 Difference]: Finished difference Result 207 states and 237 transitions. [2023-11-26 12:01:03,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:01:03,234 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2023-11-26 12:01:03,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:03,235 INFO L225 Difference]: With dead ends: 207 [2023-11-26 12:01:03,235 INFO L226 Difference]: Without dead ends: 110 [2023-11-26 12:01:03,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:01:03,237 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 34 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:03,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 166 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:01:03,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2023-11-26 12:01:03,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 101. [2023-11-26 12:01:03,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 78 states have (on average 1.4743589743589745) internal successors, (115), 97 states have internal predecessors, (115), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 12:01:03,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 119 transitions. [2023-11-26 12:01:03,246 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 119 transitions. Word has length 18 [2023-11-26 12:01:03,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:03,247 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 119 transitions. [2023-11-26 12:01:03,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:03,247 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 119 transitions. [2023-11-26 12:01:03,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-26 12:01:03,248 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:03,248 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:03,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 12:01:03,249 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-26 12:01:03,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:03,249 INFO L85 PathProgramCache]: Analyzing trace with hash 100592055, now seen corresponding path program 1 times [2023-11-26 12:01:03,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:03,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643189819] [2023-11-26 12:01:03,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:03,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:03,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:03,373 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:01:03,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:03,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643189819] [2023-11-26 12:01:03,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643189819] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:01:03,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207206357] [2023-11-26 12:01:03,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:03,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:03,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:01:03,376 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:01:03,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 12:01:03,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:03,475 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 12:01:03,476 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:01:03,522 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:01:03,522 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:01:03,625 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:01:03,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [207206357] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:01:03,626 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 12:01:03,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2023-11-26 12:01:03,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608512625] [2023-11-26 12:01:03,627 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 12:01:03,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-26 12:01:03,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:03,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-26 12:01:03,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-26 12:01:03,629 INFO L87 Difference]: Start difference. First operand 101 states and 119 transitions. Second operand has 18 states, 18 states have (on average 1.8333333333333333) internal successors, (33), 17 states have internal predecessors, (33), 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) [2023-11-26 12:01:03,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:03,884 INFO L93 Difference]: Finished difference Result 248 states and 295 transitions. [2023-11-26 12:01:03,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-26 12:01:03,885 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.8333333333333333) internal successors, (33), 17 states have internal predecessors, (33), 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 19 [2023-11-26 12:01:03,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:03,886 INFO L225 Difference]: With dead ends: 248 [2023-11-26 12:01:03,886 INFO L226 Difference]: Without dead ends: 158 [2023-11-26 12:01:03,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2023-11-26 12:01:03,888 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 408 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:03,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 333 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 12:01:03,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2023-11-26 12:01:03,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 113. [2023-11-26 12:01:03,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 90 states have (on average 1.4111111111111112) internal successors, (127), 109 states have internal predecessors, (127), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 12:01:03,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 131 transitions. [2023-11-26 12:01:03,897 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 131 transitions. Word has length 19 [2023-11-26 12:01:03,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:03,897 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 131 transitions. [2023-11-26 12:01:03,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.8333333333333333) internal successors, (33), 17 states have internal predecessors, (33), 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) [2023-11-26 12:01:03,898 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 131 transitions. [2023-11-26 12:01:03,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-26 12:01:03,899 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:03,899 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:03,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-26 12:01:04,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:04,100 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-26 12:01:04,100 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:04,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1876351945, now seen corresponding path program 2 times [2023-11-26 12:01:04,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:04,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782244520] [2023-11-26 12:01:04,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:04,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:04,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:04,380 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:01:04,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:04,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782244520] [2023-11-26 12:01:04,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782244520] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:01:04,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [646643987] [2023-11-26 12:01:04,381 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 12:01:04,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:04,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:01:04,383 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:01:04,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 12:01:04,499 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 12:01:04,500 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 12:01:04,501 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-26 12:01:04,504 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:01:04,598 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:01:04,602 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:01:04,938 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:01:04,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [646643987] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:01:04,939 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 12:01:04,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 33 [2023-11-26 12:01:04,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915074820] [2023-11-26 12:01:04,940 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 12:01:04,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-11-26 12:01:04,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:04,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-11-26 12:01:04,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2023-11-26 12:01:04,944 INFO L87 Difference]: Start difference. First operand 113 states and 131 transitions. Second operand has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 33 states have internal predecessors, (57), 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) [2023-11-26 12:01:05,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:05,481 INFO L93 Difference]: Finished difference Result 272 states and 323 transitions. [2023-11-26 12:01:05,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-26 12:01:05,482 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 33 states have internal predecessors, (57), 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 31 [2023-11-26 12:01:05,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:05,484 INFO L225 Difference]: With dead ends: 272 [2023-11-26 12:01:05,484 INFO L226 Difference]: Without dead ends: 182 [2023-11-26 12:01:05,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=659, Invalid=1597, Unknown=0, NotChecked=0, Total=2256 [2023-11-26 12:01:05,487 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 241 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:05,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 661 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 12:01:05,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2023-11-26 12:01:05,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 137. [2023-11-26 12:01:05,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 114 states have (on average 1.3245614035087718) internal successors, (151), 133 states have internal predecessors, (151), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 12:01:05,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 155 transitions. [2023-11-26 12:01:05,499 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 155 transitions. Word has length 31 [2023-11-26 12:01:05,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:05,500 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 155 transitions. [2023-11-26 12:01:05,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 33 states have internal predecessors, (57), 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) [2023-11-26 12:01:05,501 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 155 transitions. [2023-11-26 12:01:05,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-26 12:01:05,503 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:05,503 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:05,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-26 12:01:05,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:05,710 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-26 12:01:05,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:05,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1376934199, now seen corresponding path program 3 times [2023-11-26 12:01:05,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:05,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858181630] [2023-11-26 12:01:05,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:05,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:05,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:06,769 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:01:06,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:06,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858181630] [2023-11-26 12:01:06,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858181630] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:01:06,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1852375880] [2023-11-26 12:01:06,770 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-26 12:01:06,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:06,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:01:06,773 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:01:06,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-26 12:01:06,897 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-26 12:01:06,897 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 12:01:06,898 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 12:01:06,903 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:01:06,990 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2023-11-26 12:01:06,991 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:01:06,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1852375880] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:06,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 12:01:06,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [32] total 36 [2023-11-26 12:01:06,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735257591] [2023-11-26 12:01:06,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:06,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 12:01:06,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:06,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 12:01:06,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=965, Unknown=0, NotChecked=0, Total=1260 [2023-11-26 12:01:06,995 INFO L87 Difference]: Start difference. First operand 137 states and 155 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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) [2023-11-26 12:01:07,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:07,081 INFO L93 Difference]: Finished difference Result 182 states and 209 transitions. [2023-11-26 12:01:07,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:01:07,082 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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 55 [2023-11-26 12:01:07,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:07,084 INFO L225 Difference]: With dead ends: 182 [2023-11-26 12:01:07,084 INFO L226 Difference]: Without dead ends: 181 [2023-11-26 12:01:07,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=300, Invalid=1032, Unknown=0, NotChecked=0, Total=1332 [2023-11-26 12:01:07,088 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 64 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:07,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 246 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:01:07,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-11-26 12:01:07,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 136. [2023-11-26 12:01:07,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 114 states have (on average 1.3157894736842106) internal successors, (150), 132 states have internal predecessors, (150), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 12:01:07,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 154 transitions. [2023-11-26 12:01:07,103 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 154 transitions. Word has length 55 [2023-11-26 12:01:07,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:07,106 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 154 transitions. [2023-11-26 12:01:07,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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) [2023-11-26 12:01:07,106 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 154 transitions. [2023-11-26 12:01:07,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-26 12:01:07,116 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:07,117 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:07,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-26 12:01:07,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:07,323 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-26 12:01:07,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:07,324 INFO L85 PathProgramCache]: Analyzing trace with hash -264712687, now seen corresponding path program 1 times [2023-11-26 12:01:07,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:07,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350854108] [2023-11-26 12:01:07,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:07,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:07,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:07,414 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2023-11-26 12:01:07,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:07,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350854108] [2023-11-26 12:01:07,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350854108] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:07,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:07,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:01:07,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357316920] [2023-11-26 12:01:07,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:07,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:01:07,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:07,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:01:07,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:07,417 INFO L87 Difference]: Start difference. First operand 136 states and 154 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2023-11-26 12:01:07,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:07,439 INFO L93 Difference]: Finished difference Result 136 states and 154 transitions. [2023-11-26 12:01:07,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:01:07,440 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 56 [2023-11-26 12:01:07,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:07,441 INFO L225 Difference]: With dead ends: 136 [2023-11-26 12:01:07,441 INFO L226 Difference]: Without dead ends: 135 [2023-11-26 12:01:07,442 INFO L412 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 [2023-11-26 12:01:07,442 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 0 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:07,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 142 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:01:07,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2023-11-26 12:01:07,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 133. [2023-11-26 12:01:07,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 112 states have (on average 1.3125) internal successors, (147), 129 states have internal predecessors, (147), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 12:01:07,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 151 transitions. [2023-11-26 12:01:07,452 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 151 transitions. Word has length 56 [2023-11-26 12:01:07,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:07,453 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 151 transitions. [2023-11-26 12:01:07,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2023-11-26 12:01:07,453 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 151 transitions. [2023-11-26 12:01:07,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-26 12:01:07,454 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:07,454 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:07,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 12:01:07,455 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-26 12:01:07,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:07,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1347956560, now seen corresponding path program 1 times [2023-11-26 12:01:07,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:07,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691824327] [2023-11-26 12:01:07,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:07,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:07,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:07,582 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2023-11-26 12:01:07,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:07,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691824327] [2023-11-26 12:01:07,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691824327] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:01:07,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [994339177] [2023-11-26 12:01:07,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:07,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:07,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:01:07,584 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:01:07,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-26 12:01:07,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:07,740 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-26 12:01:07,744 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:01:08,418 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 12:01:08,418 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:01:09,675 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 12:01:09,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [994339177] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:01:09,675 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 12:01:09,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 32, 32] total 67 [2023-11-26 12:01:09,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370716071] [2023-11-26 12:01:09,676 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 12:01:09,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2023-11-26 12:01:09,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:09,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2023-11-26 12:01:09,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1063, Invalid=3359, Unknown=0, NotChecked=0, Total=4422 [2023-11-26 12:01:09,681 INFO L87 Difference]: Start difference. First operand 133 states and 151 transitions. Second operand has 67 states, 67 states have (on average 1.7611940298507462) internal successors, (118), 67 states have internal predecessors, (118), 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) [2023-11-26 12:01:11,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:11,137 INFO L93 Difference]: Finished difference Result 379 states and 450 transitions. [2023-11-26 12:01:11,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2023-11-26 12:01:11,138 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 1.7611940298507462) internal successors, (118), 67 states have internal predecessors, (118), 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 59 [2023-11-26 12:01:11,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:11,140 INFO L225 Difference]: With dead ends: 379 [2023-11-26 12:01:11,141 INFO L226 Difference]: Without dead ends: 293 [2023-11-26 12:01:11,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1923 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=2645, Invalid=7255, Unknown=0, NotChecked=0, Total=9900 [2023-11-26 12:01:11,145 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 662 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 665 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:11,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [665 Valid, 705 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-26 12:01:11,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2023-11-26 12:01:11,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 184. [2023-11-26 12:01:11,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 163 states have (on average 1.2147239263803682) internal successors, (198), 180 states have internal predecessors, (198), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 12:01:11,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 202 transitions. [2023-11-26 12:01:11,159 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 202 transitions. Word has length 59 [2023-11-26 12:01:11,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:11,160 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 202 transitions. [2023-11-26 12:01:11,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 1.7611940298507462) internal successors, (118), 67 states have internal predecessors, (118), 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) [2023-11-26 12:01:11,161 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 202 transitions. [2023-11-26 12:01:11,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-26 12:01:11,163 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:11,163 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:11,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-26 12:01:11,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-26 12:01:11,370 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-26 12:01:11,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:11,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1618568988, now seen corresponding path program 2 times [2023-11-26 12:01:11,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:11,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882449550] [2023-11-26 12:01:11,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:11,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:11,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:11,652 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1431 trivial. 0 not checked. [2023-11-26 12:01:11,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:11,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882449550] [2023-11-26 12:01:11,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882449550] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:11,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:11,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:01:11,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450151561] [2023-11-26 12:01:11,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:11,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:01:11,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:11,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:01:11,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:01:11,657 INFO L87 Difference]: Start difference. First operand 184 states and 202 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-11-26 12:01:11,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:11,712 INFO L93 Difference]: Finished difference Result 265 states and 294 transitions. [2023-11-26 12:01:11,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:01:11,713 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 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 110 [2023-11-26 12:01:11,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:11,715 INFO L225 Difference]: With dead ends: 265 [2023-11-26 12:01:11,716 INFO L226 Difference]: Without dead ends: 187 [2023-11-26 12:01:11,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:01:11,717 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 18 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:11,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 187 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:01:11,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2023-11-26 12:01:11,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 181. [2023-11-26 12:01:11,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 160 states have (on average 1.19375) internal successors, (191), 177 states have internal predecessors, (191), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 12:01:11,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 195 transitions. [2023-11-26 12:01:11,729 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 195 transitions. Word has length 110 [2023-11-26 12:01:11,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:11,730 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 195 transitions. [2023-11-26 12:01:11,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-11-26 12:01:11,730 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 195 transitions. [2023-11-26 12:01:11,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-26 12:01:11,736 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:11,736 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:11,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-26 12:01:11,737 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-26 12:01:11,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:11,737 INFO L85 PathProgramCache]: Analyzing trace with hash 660898951, now seen corresponding path program 1 times [2023-11-26 12:01:11,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:11,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265094685] [2023-11-26 12:01:11,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:11,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:11,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:11,937 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1431 trivial. 0 not checked. [2023-11-26 12:01:11,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:11,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265094685] [2023-11-26 12:01:11,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265094685] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:11,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:11,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 12:01:11,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034169455] [2023-11-26 12:01:11,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:11,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:01:11,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:11,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:01:11,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:01:11,940 INFO L87 Difference]: Start difference. First operand 181 states and 195 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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) [2023-11-26 12:01:11,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:11,962 INFO L93 Difference]: Finished difference Result 184 states and 196 transitions. [2023-11-26 12:01:11,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:01:11,963 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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 112 [2023-11-26 12:01:11,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:11,964 INFO L225 Difference]: With dead ends: 184 [2023-11-26 12:01:11,964 INFO L226 Difference]: Without dead ends: 119 [2023-11-26 12:01:11,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:01:11,966 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 9 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:11,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 53 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:01:11,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-11-26 12:01:11,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 118. [2023-11-26 12:01:11,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 116 states have (on average 1.0344827586206897) internal successors, (120), 117 states have internal predecessors, (120), 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) [2023-11-26 12:01:11,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 120 transitions. [2023-11-26 12:01:11,974 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 120 transitions. Word has length 112 [2023-11-26 12:01:11,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:11,975 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 120 transitions. [2023-11-26 12:01:11,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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) [2023-11-26 12:01:11,975 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 120 transitions. [2023-11-26 12:01:11,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-26 12:01:11,976 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:11,977 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:11,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-26 12:01:11,977 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-26 12:01:11,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:11,978 INFO L85 PathProgramCache]: Analyzing trace with hash 718350843, now seen corresponding path program 1 times [2023-11-26 12:01:11,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:11,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764291326] [2023-11-26 12:01:11,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:11,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:12,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:12,164 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1431 trivial. 0 not checked. [2023-11-26 12:01:12,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:12,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764291326] [2023-11-26 12:01:12,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764291326] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:12,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:12,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:01:12,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934445822] [2023-11-26 12:01:12,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:12,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:01:12,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:12,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:01:12,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:01:12,167 INFO L87 Difference]: Start difference. First operand 118 states and 120 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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) [2023-11-26 12:01:12,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:12,200 INFO L93 Difference]: Finished difference Result 130 states and 132 transitions. [2023-11-26 12:01:12,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:01:12,200 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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 115 [2023-11-26 12:01:12,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:12,202 INFO L225 Difference]: With dead ends: 130 [2023-11-26 12:01:12,202 INFO L226 Difference]: Without dead ends: 128 [2023-11-26 12:01:12,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:01:12,203 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 5 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:12,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 49 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:01:12,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2023-11-26 12:01:12,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2023-11-26 12:01:12,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 126 states have (on average 1.0317460317460319) internal successors, (130), 127 states have internal predecessors, (130), 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) [2023-11-26 12:01:12,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 130 transitions. [2023-11-26 12:01:12,213 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 130 transitions. Word has length 115 [2023-11-26 12:01:12,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:12,213 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 130 transitions. [2023-11-26 12:01:12,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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) [2023-11-26 12:01:12,214 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 130 transitions. [2023-11-26 12:01:12,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-26 12:01:12,215 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:12,215 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:12,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-26 12:01:12,216 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-26 12:01:12,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:12,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1982842003, now seen corresponding path program 1 times [2023-11-26 12:01:12,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:12,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491595659] [2023-11-26 12:01:12,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:12,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:12,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:15,451 INFO L134 CoverageAnalysis]: Checked inductivity of 1440 backedges. 0 proven. 1426 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-26 12:01:15,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:15,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491595659] [2023-11-26 12:01:15,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491595659] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:01:15,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045901865] [2023-11-26 12:01:15,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:15,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:15,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:01:15,457 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:01:15,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-26 12:01:15,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:15,685 INFO L262 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 64 conjunts are in the unsatisfiable core [2023-11-26 12:01:15,691 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:01:15,936 INFO L134 CoverageAnalysis]: Checked inductivity of 1440 backedges. 0 proven. 1426 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-26 12:01:15,936 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:01:19,853 INFO L134 CoverageAnalysis]: Checked inductivity of 1440 backedges. 0 proven. 1426 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-26 12:01:19,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2045901865] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:01:19,854 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 12:01:19,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64, 64] total 129 [2023-11-26 12:01:19,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698955956] [2023-11-26 12:01:19,855 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 12:01:19,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2023-11-26 12:01:19,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:19,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2023-11-26 12:01:19,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2023-11-26 12:01:19,866 INFO L87 Difference]: Start difference. First operand 128 states and 130 transitions. Second operand has 130 states, 130 states have (on average 1.6384615384615384) internal successors, (213), 129 states have internal predecessors, (213), 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) [2023-11-26 12:01:23,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:23,551 INFO L93 Difference]: Finished difference Result 257 states and 292 transitions. [2023-11-26 12:01:23,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2023-11-26 12:01:23,552 INFO L78 Accepts]: Start accepts. Automaton has has 130 states, 130 states have (on average 1.6384615384615384) internal successors, (213), 129 states have internal predecessors, (213), 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 125 [2023-11-26 12:01:23,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:23,554 INFO L225 Difference]: With dead ends: 257 [2023-11-26 12:01:23,554 INFO L226 Difference]: Without dead ends: 224 [2023-11-26 12:01:23,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8087 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=10307, Invalid=26365, Unknown=0, NotChecked=0, Total=36672 [2023-11-26 12:01:23,565 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 512 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:23,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 73 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-26 12:01:23,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2023-11-26 12:01:23,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2023-11-26 12:01:23,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 222 states have (on average 1.018018018018018) internal successors, (226), 223 states have internal predecessors, (226), 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) [2023-11-26 12:01:23,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 226 transitions. [2023-11-26 12:01:23,577 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 226 transitions. Word has length 125 [2023-11-26 12:01:23,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:23,578 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 226 transitions. [2023-11-26 12:01:23,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 1.6384615384615384) internal successors, (213), 129 states have internal predecessors, (213), 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) [2023-11-26 12:01:23,578 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 226 transitions. [2023-11-26 12:01:23,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2023-11-26 12:01:23,581 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:23,581 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:23,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-26 12:01:23,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-26 12:01:23,789 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-26 12:01:23,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:23,789 INFO L85 PathProgramCache]: Analyzing trace with hash 47189869, now seen corresponding path program 2 times [2023-11-26 12:01:23,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:23,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749499254] [2023-11-26 12:01:23,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:23,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:23,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:34,247 INFO L134 CoverageAnalysis]: Checked inductivity of 5936 backedges. 0 proven. 5922 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-26 12:01:34,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:34,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749499254] [2023-11-26 12:01:34,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749499254] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:01:34,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1688417829] [2023-11-26 12:01:34,248 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 12:01:34,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:34,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:01:34,253 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:01:34,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_560a1110-12ee-4001-8c6e-67449f03b231/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-26 12:01:34,589 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 12:01:34,590 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 12:01:34,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 128 conjunts are in the unsatisfiable core [2023-11-26 12:01:34,606 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:01:35,013 INFO L134 CoverageAnalysis]: Checked inductivity of 5936 backedges. 0 proven. 5922 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-26 12:01:35,013 INFO L327 TraceCheckSpWp]: Computing backward predicates...