./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 527bcce2 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_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/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_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx --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 0.2.3-dev-527bcce [2023-11-21 21:02:20,924 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 21:02:21,052 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-21 21:02:21,058 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 21:02:21,070 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 21:02:21,140 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 21:02:21,140 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 21:02:21,141 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 21:02:21,142 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 21:02:21,143 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 21:02:21,143 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 21:02:21,144 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 21:02:21,145 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 21:02:21,146 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 21:02:21,146 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 21:02:21,147 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 21:02:21,148 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 21:02:21,149 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 21:02:21,149 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 21:02:21,150 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 21:02:21,150 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 21:02:21,161 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 21:02:21,162 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 21:02:21,163 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 21:02:21,163 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 21:02:21,164 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 21:02:21,164 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 21:02:21,164 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 21:02:21,165 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 21:02:21,165 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 21:02:21,166 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 21:02:21,166 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 21:02:21,167 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 21:02:21,167 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:02:21,168 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 21:02:21,168 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 21:02:21,169 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 21:02:21,169 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 21:02:21,170 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 21:02:21,170 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 21:02:21,171 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 21:02:21,175 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 21:02:21,175 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 21:02:21,175 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 21:02:21,176 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_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0286582125bb2879636b8cf3b934bed172850a3a3b0d880c07306d10439134a7 [2023-11-21 21:02:21,561 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 21:02:21,595 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 21:02:21,599 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 21:02:21,601 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 21:02:21,602 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 21:02:21,603 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i [2023-11-21 21:02:25,313 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 21:02:25,597 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 21:02:25,598 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i [2023-11-21 21:02:25,608 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/data/ba771fac0/85e329b7e6ba42d2b00fd5276ad1bdac/FLAGade2f5ac4 [2023-11-21 21:02:25,623 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/data/ba771fac0/85e329b7e6ba42d2b00fd5276ad1bdac [2023-11-21 21:02:25,627 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 21:02:25,629 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 21:02:25,630 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 21:02:25,631 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 21:02:25,636 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 21:02:25,637 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:02:25" (1/1) ... [2023-11-21 21:02:25,639 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f249a59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:25, skipping insertion in model container [2023-11-21 21:02:25,639 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:02:25" (1/1) ... [2023-11-21 21:02:25,670 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 21:02:25,875 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:02:25,887 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 21:02:25,924 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:02:25,941 INFO L206 MainTranslator]: Completed translation [2023-11-21 21:02:25,942 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:25 WrapperNode [2023-11-21 21:02:25,942 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 21:02:25,943 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 21:02:25,944 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 21:02:25,944 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 21:02:25,952 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:25" (1/1) ... [2023-11-21 21:02:25,962 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:25" (1/1) ... [2023-11-21 21:02:25,997 INFO L138 Inliner]: procedures = 18, calls = 30, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 195 [2023-11-21 21:02:25,997 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 21:02:25,998 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 21:02:25,999 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 21:02:25,999 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 21:02:26,013 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:25" (1/1) ... [2023-11-21 21:02:26,014 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:25" (1/1) ... [2023-11-21 21:02:26,018 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:25" (1/1) ... [2023-11-21 21:02:26,034 INFO L187 HeapSplitter]: Split 14 memory accesses to 3 slices as follows [2, 9, 3] [2023-11-21 21:02:26,035 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:25" (1/1) ... [2023-11-21 21:02:26,035 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:25" (1/1) ... [2023-11-21 21:02:26,045 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:25" (1/1) ... [2023-11-21 21:02:26,052 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:25" (1/1) ... [2023-11-21 21:02:26,054 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:25" (1/1) ... [2023-11-21 21:02:26,057 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:25" (1/1) ... [2023-11-21 21:02:26,071 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 21:02:26,072 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 21:02:26,073 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 21:02:26,073 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 21:02:26,074 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:25" (1/1) ... [2023-11-21 21:02:26,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:02:26,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:26,153 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 21:02:26,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 21:02:26,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 21:02:26,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 21:02:26,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-21 21:02:26,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-21 21:02:26,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 21:02:26,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-21 21:02:26,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-21 21:02:26,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-21 21:02:26,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 21:02:26,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 21:02:26,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-21 21:02:26,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-21 21:02:26,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-21 21:02:26,230 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-21 21:02:26,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-21 21:02:26,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 21:02:26,331 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 21:02:26,333 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 21:02:26,754 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 21:02:26,876 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 21:02:26,876 INFO L308 CfgBuilder]: Removed 10 assume(true) statements. [2023-11-21 21:02:26,878 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:02:26 BoogieIcfgContainer [2023-11-21 21:02:26,878 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 21:02:26,882 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 21:02:26,882 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 21:02:26,886 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 21:02:26,886 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:02:25" (1/3) ... [2023-11-21 21:02:26,887 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c27b692 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:02:26, skipping insertion in model container [2023-11-21 21:02:26,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:25" (2/3) ... [2023-11-21 21:02:26,888 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c27b692 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:02:26, skipping insertion in model container [2023-11-21 21:02:26,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:02:26" (3/3) ... [2023-11-21 21:02:26,890 INFO L112 eAbstractionObserver]: Analyzing ICFG data_structures_set_multi_proc_trivial_ground.i [2023-11-21 21:02:26,918 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 21:02:26,919 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2023-11-21 21:02:26,988 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 21:02:26,998 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;@11333b4d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 21:02:26,998 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2023-11-21 21:02:27,005 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 47 states have (on average 1.851063829787234) internal successors, (87), 75 states have internal predecessors, (87), 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) [2023-11-21 21:02:27,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 21:02:27,014 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:02:27,015 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-21 21:02:27,016 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)] === [2023-11-21 21:02:27,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:27,024 INFO L85 PathProgramCache]: Analyzing trace with hash 274859, now seen corresponding path program 1 times [2023-11-21 21:02:27,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:27,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209941067] [2023-11-21 21:02:27,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:27,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:27,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:27,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:02:27,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:27,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209941067] [2023-11-21 21:02:27,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209941067] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:27,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:27,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:02:27,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006086737] [2023-11-21 21:02:27,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:27,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 21:02:27,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:27,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 21:02:27,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 21:02:27,505 INFO L87 Difference]: Start difference. First operand has 80 states, 47 states have (on average 1.851063829787234) internal successors, (87), 75 states have internal predecessors, (87), 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) [2023-11-21 21:02:27,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:02:27,924 INFO L93 Difference]: Finished difference Result 224 states and 270 transitions. [2023-11-21 21:02:27,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 21:02:27,927 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 [2023-11-21 21:02:27,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 21:02:27,942 INFO L225 Difference]: With dead ends: 224 [2023-11-21 21:02:27,942 INFO L226 Difference]: Without dead ends: 147 [2023-11-21 21:02:27,947 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 [2023-11-21 21:02:27,956 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 70 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 21:02:27,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 179 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 21:02:27,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2023-11-21 21:02:28,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 91. [2023-11-21 21:02:28,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 59 states have (on average 1.694915254237288) internal successors, (100), 86 states have internal predecessors, (100), 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) [2023-11-21 21:02:28,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 106 transitions. [2023-11-21 21:02:28,024 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 106 transitions. Word has length 3 [2023-11-21 21:02:28,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 21:02:28,025 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 106 transitions. [2023-11-21 21:02:28,026 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) [2023-11-21 21:02:28,026 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 106 transitions. [2023-11-21 21:02:28,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 21:02:28,027 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:02:28,027 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2023-11-21 21:02:28,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 21:02:28,028 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)] === [2023-11-21 21:02:28,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:28,029 INFO L85 PathProgramCache]: Analyzing trace with hash -401557255, now seen corresponding path program 1 times [2023-11-21 21:02:28,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:28,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522733924] [2023-11-21 21:02:28,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:28,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:28,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:28,262 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:02:28,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:28,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522733924] [2023-11-21 21:02:28,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522733924] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 21:02:28,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [873050220] [2023-11-21 21:02:28,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:28,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 21:02:28,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:28,268 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 21:02:28,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 21:02:28,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:28,363 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 21:02:28,368 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:02:28,444 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:02:28,444 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 21:02:28,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [873050220] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:28,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 21:02:28,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2023-11-21 21:02:28,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976286104] [2023-11-21 21:02:28,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:28,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 21:02:28,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:28,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 21:02:28,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-21 21:02:28,450 INFO L87 Difference]: Start difference. First operand 91 states and 106 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) [2023-11-21 21:02:28,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:02:28,813 INFO L93 Difference]: Finished difference Result 147 states and 173 transitions. [2023-11-21 21:02:28,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 21:02:28,813 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 [2023-11-21 21:02:28,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 21:02:28,825 INFO L225 Difference]: With dead ends: 147 [2023-11-21 21:02:28,825 INFO L226 Difference]: Without dead ends: 146 [2023-11-21 21:02:28,826 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 [2023-11-21 21:02:28,831 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 75 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 21:02:28,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 239 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 21:02:28,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2023-11-21 21:02:28,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 90. [2023-11-21 21:02:28,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 59 states have (on average 1.6779661016949152) internal successors, (99), 85 states have internal predecessors, (99), 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) [2023-11-21 21:02:28,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 105 transitions. [2023-11-21 21:02:28,860 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 105 transitions. Word has length 6 [2023-11-21 21:02:28,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 21:02:28,860 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 105 transitions. [2023-11-21 21:02:28,861 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) [2023-11-21 21:02:28,861 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 105 transitions. [2023-11-21 21:02:28,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 21:02:28,862 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:02:28,862 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2023-11-21 21:02:28,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-21 21:02:29,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 21:02:29,085 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)] === [2023-11-21 21:02:29,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:29,086 INFO L85 PathProgramCache]: Analyzing trace with hash 436627029, now seen corresponding path program 1 times [2023-11-21 21:02:29,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:29,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396985124] [2023-11-21 21:02:29,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:29,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:29,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:29,186 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 21:02:29,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:29,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396985124] [2023-11-21 21:02:29,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396985124] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:29,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:29,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:02:29,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021747661] [2023-11-21 21:02:29,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:29,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:02:29,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:29,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:02:29,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:02:29,200 INFO L87 Difference]: Start difference. First operand 90 states and 105 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) [2023-11-21 21:02:29,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:02:29,255 INFO L93 Difference]: Finished difference Result 90 states and 105 transitions. [2023-11-21 21:02:29,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:02:29,256 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 [2023-11-21 21:02:29,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 21:02:29,258 INFO L225 Difference]: With dead ends: 90 [2023-11-21 21:02:29,258 INFO L226 Difference]: Without dead ends: 89 [2023-11-21 21:02:29,259 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 [2023-11-21 21:02:29,263 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 0 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 21:02:29,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 140 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 21:02:29,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-11-21 21:02:29,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 87. [2023-11-21 21:02:29,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 57 states have (on average 1.6842105263157894) internal successors, (96), 82 states have internal predecessors, (96), 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) [2023-11-21 21:02:29,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 102 transitions. [2023-11-21 21:02:29,295 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 102 transitions. Word has length 7 [2023-11-21 21:02:29,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 21:02:29,295 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 102 transitions. [2023-11-21 21:02:29,296 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) [2023-11-21 21:02:29,296 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 102 transitions. [2023-11-21 21:02:29,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 21:02:29,297 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:02:29,297 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:29,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 21:02:29,298 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)] === [2023-11-21 21:02:29,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:29,300 INFO L85 PathProgramCache]: Analyzing trace with hash 651227475, now seen corresponding path program 1 times [2023-11-21 21:02:29,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:29,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483615386] [2023-11-21 21:02:29,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:29,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:29,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:29,462 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:02:29,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:29,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483615386] [2023-11-21 21:02:29,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483615386] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 21:02:29,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2034539792] [2023-11-21 21:02:29,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:29,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 21:02:29,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:29,469 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 21:02:29,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-21 21:02:29,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:29,587 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 21:02:29,588 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:02:29,624 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:02:29,624 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 21:02:29,672 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:02:29,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2034539792] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 21:02:29,673 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 21:02:29,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2023-11-21 21:02:29,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64692496] [2023-11-21 21:02:29,676 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 21:02:29,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-21 21:02:29,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:29,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-21 21:02:29,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-21 21:02:29,686 INFO L87 Difference]: Start difference. First operand 87 states and 102 transitions. Second operand has 10 states, 10 states have (on average 1.7) internal successors, (17), 9 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) [2023-11-21 21:02:29,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:02:29,904 INFO L93 Difference]: Finished difference Result 231 states and 273 transitions. [2023-11-21 21:02:29,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 21:02:29,905 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.7) internal successors, (17), 9 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 8 [2023-11-21 21:02:29,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 21:02:29,906 INFO L225 Difference]: With dead ends: 231 [2023-11-21 21:02:29,907 INFO L226 Difference]: Without dead ends: 149 [2023-11-21 21:02:29,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2023-11-21 21:02:29,911 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 146 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 21:02:29,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 253 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 21:02:29,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2023-11-21 21:02:29,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 93. [2023-11-21 21:02:29,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 63 states have (on average 1.619047619047619) internal successors, (102), 88 states have internal predecessors, (102), 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) [2023-11-21 21:02:29,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 108 transitions. [2023-11-21 21:02:29,939 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 108 transitions. Word has length 8 [2023-11-21 21:02:29,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 21:02:29,940 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 108 transitions. [2023-11-21 21:02:29,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.7) internal successors, (17), 9 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) [2023-11-21 21:02:29,942 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 108 transitions. [2023-11-21 21:02:29,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-21 21:02:29,943 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:02:29,943 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1] [2023-11-21 21:02:29,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-21 21:02:30,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 21:02:30,166 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)] === [2023-11-21 21:02:30,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:30,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1458953197, now seen corresponding path program 2 times [2023-11-21 21:02:30,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:30,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853667619] [2023-11-21 21:02:30,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:30,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:30,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:30,276 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 21:02:30,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:30,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853667619] [2023-11-21 21:02:30,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853667619] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:30,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:30,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 21:02:30,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181135726] [2023-11-21 21:02:30,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:30,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 21:02:30,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:30,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 21:02:30,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 21:02:30,280 INFO L87 Difference]: Start difference. First operand 93 states and 108 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:30,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:02:30,380 INFO L93 Difference]: Finished difference Result 193 states and 226 transitions. [2023-11-21 21:02:30,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 21:02:30,381 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-11-21 21:02:30,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 21:02:30,382 INFO L225 Difference]: With dead ends: 193 [2023-11-21 21:02:30,382 INFO L226 Difference]: Without dead ends: 133 [2023-11-21 21:02:30,384 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 [2023-11-21 21:02:30,385 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 40 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 21:02:30,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 202 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 21:02:30,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2023-11-21 21:02:30,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 97. [2023-11-21 21:02:30,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 67 states have (on average 1.5820895522388059) internal successors, (106), 92 states have internal predecessors, (106), 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) [2023-11-21 21:02:30,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 112 transitions. [2023-11-21 21:02:30,408 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 112 transitions. Word has length 14 [2023-11-21 21:02:30,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 21:02:30,408 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 112 transitions. [2023-11-21 21:02:30,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:30,409 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 112 transitions. [2023-11-21 21:02:30,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-21 21:02:30,416 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:02:30,416 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:30,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 21:02:30,416 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)] === [2023-11-21 21:02:30,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:30,417 INFO L85 PathProgramCache]: Analyzing trace with hash -2116328653, now seen corresponding path program 1 times [2023-11-21 21:02:30,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:30,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108081019] [2023-11-21 21:02:30,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:30,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:30,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:30,581 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 21:02:30,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:30,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108081019] [2023-11-21 21:02:30,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108081019] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:30,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:30,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 21:02:30,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474034927] [2023-11-21 21:02:30,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:30,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 21:02:30,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:30,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 21:02:30,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 21:02:30,586 INFO L87 Difference]: Start difference. First operand 97 states and 112 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 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) [2023-11-21 21:02:30,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:02:30,649 INFO L93 Difference]: Finished difference Result 184 states and 214 transitions. [2023-11-21 21:02:30,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 21:02:30,650 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 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 [2023-11-21 21:02:30,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 21:02:30,651 INFO L225 Difference]: With dead ends: 184 [2023-11-21 21:02:30,652 INFO L226 Difference]: Without dead ends: 98 [2023-11-21 21:02:30,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 21:02:30,656 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 58 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 21:02:30,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 99 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 21:02:30,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-11-21 21:02:30,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 89. [2023-11-21 21:02:30,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 66 states have (on average 1.5606060606060606) internal successors, (103), 85 states have internal predecessors, (103), 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) [2023-11-21 21:02:30,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 107 transitions. [2023-11-21 21:02:30,673 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 107 transitions. Word has length 16 [2023-11-21 21:02:30,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 21:02:30,674 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 107 transitions. [2023-11-21 21:02:30,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 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) [2023-11-21 21:02:30,674 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 107 transitions. [2023-11-21 21:02:30,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-21 21:02:30,675 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:02:30,675 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:30,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 21:02:30,676 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)] === [2023-11-21 21:02:30,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:30,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1394452295, now seen corresponding path program 1 times [2023-11-21 21:02:30,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:30,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080959748] [2023-11-21 21:02:30,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:30,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:30,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:30,878 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 21:02:30,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:30,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080959748] [2023-11-21 21:02:30,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080959748] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 21:02:30,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1835523277] [2023-11-21 21:02:30,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:30,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 21:02:30,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:30,881 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 21:02:30,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-21 21:02:30,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:30,979 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-21 21:02:30,981 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:02:31,037 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 21:02:31,038 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 21:02:31,173 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 21:02:31,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1835523277] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 21:02:31,174 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 21:02:31,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2023-11-21 21:02:31,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632491809] [2023-11-21 21:02:31,175 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 21:02:31,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-21 21:02:31,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:31,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-21 21:02:31,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-21 21:02:31,177 INFO L87 Difference]: Start difference. First operand 89 states and 107 transitions. Second operand has 18 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 17 states have internal predecessors, (31), 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) [2023-11-21 21:02:31,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:02:31,487 INFO L93 Difference]: Finished difference Result 219 states and 266 transitions. [2023-11-21 21:02:31,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-21 21:02:31,488 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 17 states have internal predecessors, (31), 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 17 [2023-11-21 21:02:31,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 21:02:31,489 INFO L225 Difference]: With dead ends: 219 [2023-11-21 21:02:31,490 INFO L226 Difference]: Without dead ends: 141 [2023-11-21 21:02:31,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2023-11-21 21:02:31,492 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 194 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 21:02:31,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 255 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 21:02:31,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-11-21 21:02:31,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 101. [2023-11-21 21:02:31,500 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) [2023-11-21 21:02:31,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 119 transitions. [2023-11-21 21:02:31,501 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 119 transitions. Word has length 17 [2023-11-21 21:02:31,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 21:02:31,502 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 119 transitions. [2023-11-21 21:02:31,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 17 states have internal predecessors, (31), 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) [2023-11-21 21:02:31,502 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 119 transitions. [2023-11-21 21:02:31,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-21 21:02:31,503 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:02:31,504 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:31,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-21 21:02:31,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 21:02:31,727 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)] === [2023-11-21 21:02:31,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:31,728 INFO L85 PathProgramCache]: Analyzing trace with hash 529826247, now seen corresponding path program 2 times [2023-11-21 21:02:31,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:31,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432600784] [2023-11-21 21:02:31,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:31,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:31,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:32,141 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 21:02:32,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:32,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432600784] [2023-11-21 21:02:32,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432600784] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 21:02:32,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [662590791] [2023-11-21 21:02:32,142 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-21 21:02:32,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 21:02:32,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:32,148 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 21:02:32,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-21 21:02:32,272 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-21 21:02:32,273 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 21:02:32,274 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-21 21:02:32,279 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:02:32,386 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 21:02:32,386 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 21:02:32,744 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 21:02:32,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [662590791] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 21:02:32,745 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 21:02:32,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 33 [2023-11-21 21:02:32,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077732569] [2023-11-21 21:02:32,746 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 21:02:32,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-11-21 21:02:32,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:32,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-11-21 21:02:32,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2023-11-21 21:02:32,749 INFO L87 Difference]: Start difference. First operand 101 states and 119 transitions. Second operand has 34 states, 34 states have (on average 1.6176470588235294) internal successors, (55), 33 states have internal predecessors, (55), 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) [2023-11-21 21:02:33,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:02:33,255 INFO L93 Difference]: Finished difference Result 243 states and 294 transitions. [2023-11-21 21:02:33,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-21 21:02:33,256 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 1.6176470588235294) internal successors, (55), 33 states have internal predecessors, (55), 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 29 [2023-11-21 21:02:33,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 21:02:33,257 INFO L225 Difference]: With dead ends: 243 [2023-11-21 21:02:33,257 INFO L226 Difference]: Without dead ends: 165 [2023-11-21 21:02:33,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=659, Invalid=1597, Unknown=0, NotChecked=0, Total=2256 [2023-11-21 21:02:33,261 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 174 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 21:02:33,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 371 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 21:02:33,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2023-11-21 21:02:33,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 125. [2023-11-21 21:02:33,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 102 states have (on average 1.3627450980392157) internal successors, (139), 121 states have internal predecessors, (139), 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) [2023-11-21 21:02:33,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 143 transitions. [2023-11-21 21:02:33,271 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 143 transitions. Word has length 29 [2023-11-21 21:02:33,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 21:02:33,271 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 143 transitions. [2023-11-21 21:02:33,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 1.6176470588235294) internal successors, (55), 33 states have internal predecessors, (55), 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) [2023-11-21 21:02:33,272 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 143 transitions. [2023-11-21 21:02:33,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-21 21:02:33,275 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:02:33,275 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 2, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:33,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-21 21:02:33,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-21 21:02:33,489 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)] === [2023-11-21 21:02:33,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:33,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1145501383, now seen corresponding path program 3 times [2023-11-21 21:02:33,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:33,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488011516] [2023-11-21 21:02:33,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:33,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:33,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:34,499 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 21:02:34,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:34,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488011516] [2023-11-21 21:02:34,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488011516] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 21:02:34,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1263891108] [2023-11-21 21:02:34,500 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-21 21:02:34,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 21:02:34,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:34,503 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 21:02:34,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-21 21:02:34,629 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-21 21:02:34,629 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 21:02:34,630 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 21:02:34,633 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:02:34,730 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2023-11-21 21:02:34,730 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 21:02:34,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1263891108] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:34,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 21:02:34,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [32] total 36 [2023-11-21 21:02:34,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176736762] [2023-11-21 21:02:34,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:34,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 21:02:34,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:34,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 21:02:34,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=965, Unknown=0, NotChecked=0, Total=1260 [2023-11-21 21:02:34,734 INFO L87 Difference]: Start difference. First operand 125 states and 143 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 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) [2023-11-21 21:02:34,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:02:34,843 INFO L93 Difference]: Finished difference Result 166 states and 193 transitions. [2023-11-21 21:02:34,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 21:02:34,844 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 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 53 [2023-11-21 21:02:34,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 21:02:34,845 INFO L225 Difference]: With dead ends: 166 [2023-11-21 21:02:34,846 INFO L226 Difference]: Without dead ends: 165 [2023-11-21 21:02:34,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=300, Invalid=1032, Unknown=0, NotChecked=0, Total=1332 [2023-11-21 21:02:34,850 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 58 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 21:02:34,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 184 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 21:02:34,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2023-11-21 21:02:34,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 124. [2023-11-21 21:02:34,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 102 states have (on average 1.3529411764705883) internal successors, (138), 120 states have internal predecessors, (138), 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) [2023-11-21 21:02:34,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 142 transitions. [2023-11-21 21:02:34,864 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 142 transitions. Word has length 53 [2023-11-21 21:02:34,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 21:02:34,868 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 142 transitions. [2023-11-21 21:02:34,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 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) [2023-11-21 21:02:34,868 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 142 transitions. [2023-11-21 21:02:34,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-21 21:02:34,872 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:02:34,873 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 2, 2, 1, 1, 1, 1, 1] [2023-11-21 21:02:34,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-21 21:02:35,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-21 21:02:35,093 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)] === [2023-11-21 21:02:35,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:35,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1150804609, now seen corresponding path program 1 times [2023-11-21 21:02:35,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:35,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751052479] [2023-11-21 21:02:35,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:35,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:35,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:35,224 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2023-11-21 21:02:35,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:35,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751052479] [2023-11-21 21:02:35,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751052479] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:35,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:35,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:02:35,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231373433] [2023-11-21 21:02:35,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:35,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:02:35,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:35,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:02:35,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:02:35,227 INFO L87 Difference]: Start difference. First operand 124 states and 142 transitions. Second operand has 3 states, 2 states have (on average 6.0) 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) [2023-11-21 21:02:35,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:02:35,266 INFO L93 Difference]: Finished difference Result 124 states and 142 transitions. [2023-11-21 21:02:35,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:02:35,267 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) 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 54 [2023-11-21 21:02:35,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 21:02:35,268 INFO L225 Difference]: With dead ends: 124 [2023-11-21 21:02:35,269 INFO L226 Difference]: Without dead ends: 123 [2023-11-21 21:02:35,269 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 [2023-11-21 21:02:35,270 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 0 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 21:02:35,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 104 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 21:02:35,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2023-11-21 21:02:35,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 121. [2023-11-21 21:02:35,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 100 states have (on average 1.35) internal successors, (135), 117 states have internal predecessors, (135), 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) [2023-11-21 21:02:35,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 139 transitions. [2023-11-21 21:02:35,284 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 139 transitions. Word has length 54 [2023-11-21 21:02:35,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 21:02:35,287 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 139 transitions. [2023-11-21 21:02:35,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) 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) [2023-11-21 21:02:35,287 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 139 transitions. [2023-11-21 21:02:35,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-21 21:02:35,293 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:02:35,293 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:35,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-21 21:02:35,294 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)] === [2023-11-21 21:02:35,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:35,295 INFO L85 PathProgramCache]: Analyzing trace with hash 2125390663, now seen corresponding path program 1 times [2023-11-21 21:02:35,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:35,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724746936] [2023-11-21 21:02:35,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:35,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:35,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:35,527 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2023-11-21 21:02:35,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:35,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724746936] [2023-11-21 21:02:35,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724746936] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 21:02:35,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335019100] [2023-11-21 21:02:35,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:35,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 21:02:35,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:35,534 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 21:02:35,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-21 21:02:35,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:35,696 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-21 21:02:35,703 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:02:36,415 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 21:02:36,415 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 21:02:37,887 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 21:02:37,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [335019100] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 21:02:37,888 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 21:02:37,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 32, 32] total 67 [2023-11-21 21:02:37,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409132967] [2023-11-21 21:02:37,891 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 21:02:37,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2023-11-21 21:02:37,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:37,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2023-11-21 21:02:37,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1063, Invalid=3359, Unknown=0, NotChecked=0, Total=4422 [2023-11-21 21:02:37,899 INFO L87 Difference]: Start difference. First operand 121 states and 139 transitions. Second operand has 67 states, 67 states have (on average 1.6865671641791045) internal successors, (113), 67 states have internal predecessors, (113), 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) [2023-11-21 21:02:39,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:02:39,236 INFO L93 Difference]: Finished difference Result 344 states and 415 transitions. [2023-11-21 21:02:39,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2023-11-21 21:02:39,237 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 1.6865671641791045) internal successors, (113), 67 states have internal predecessors, (113), 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 [2023-11-21 21:02:39,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 21:02:39,240 INFO L225 Difference]: With dead ends: 344 [2023-11-21 21:02:39,240 INFO L226 Difference]: Without dead ends: 270 [2023-11-21 21:02:39,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1923 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=2645, Invalid=7255, Unknown=0, NotChecked=0, Total=9900 [2023-11-21 21:02:39,247 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 576 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 21:02:39,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 382 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 21:02:39,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2023-11-21 21:02:39,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 172. [2023-11-21 21:02:39,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 151 states have (on average 1.2317880794701987) internal successors, (186), 168 states have internal predecessors, (186), 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) [2023-11-21 21:02:39,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 190 transitions. [2023-11-21 21:02:39,263 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 190 transitions. Word has length 56 [2023-11-21 21:02:39,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 21:02:39,264 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 190 transitions. [2023-11-21 21:02:39,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 1.6865671641791045) internal successors, (113), 67 states have internal predecessors, (113), 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) [2023-11-21 21:02:39,264 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 190 transitions. [2023-11-21 21:02:39,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-21 21:02:39,266 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:02:39,266 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:39,289 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-21 21:02:39,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-21 21:02:39,483 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)] === [2023-11-21 21:02:39,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:39,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1340983419, now seen corresponding path program 2 times [2023-11-21 21:02:39,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:39,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216320377] [2023-11-21 21:02:39,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:39,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:39,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:39,895 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1431 trivial. 0 not checked. [2023-11-21 21:02:39,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:39,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216320377] [2023-11-21 21:02:39,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216320377] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:39,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:39,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 21:02:39,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99045919] [2023-11-21 21:02:39,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:39,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 21:02:39,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:39,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 21:02:39,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 21:02:39,899 INFO L87 Difference]: Start difference. First operand 172 states and 190 transitions. Second operand has 4 states, 4 states have (on average 3.5) 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) [2023-11-21 21:02:39,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:02:39,975 INFO L93 Difference]: Finished difference Result 244 states and 273 transitions. [2023-11-21 21:02:39,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 21:02:39,976 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) 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 107 [2023-11-21 21:02:39,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 21:02:39,979 INFO L225 Difference]: With dead ends: 244 [2023-11-21 21:02:39,980 INFO L226 Difference]: Without dead ends: 175 [2023-11-21 21:02:39,980 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 [2023-11-21 21:02:39,981 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 15 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 21:02:39,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 145 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 21:02:39,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2023-11-21 21:02:39,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 169. [2023-11-21 21:02:39,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 148 states have (on average 1.2094594594594594) internal successors, (179), 165 states have internal predecessors, (179), 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) [2023-11-21 21:02:39,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 183 transitions. [2023-11-21 21:02:39,996 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 183 transitions. Word has length 107 [2023-11-21 21:02:39,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 21:02:39,997 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 183 transitions. [2023-11-21 21:02:39,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) 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) [2023-11-21 21:02:39,998 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 183 transitions. [2023-11-21 21:02:40,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-21 21:02:40,005 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:02:40,006 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:40,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-21 21:02:40,007 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)] === [2023-11-21 21:02:40,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:40,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1374633266, now seen corresponding path program 1 times [2023-11-21 21:02:40,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:40,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370910982] [2023-11-21 21:02:40,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:40,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:40,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:40,209 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1431 trivial. 0 not checked. [2023-11-21 21:02:40,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:40,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370910982] [2023-11-21 21:02:40,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370910982] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:40,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:40,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 21:02:40,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676579008] [2023-11-21 21:02:40,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:40,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 21:02:40,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:40,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 21:02:40,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 21:02:40,214 INFO L87 Difference]: Start difference. First operand 169 states and 183 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2023-11-21 21:02:40,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:02:40,259 INFO L93 Difference]: Finished difference Result 172 states and 184 transitions. [2023-11-21 21:02:40,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 21:02:40,260 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 108 [2023-11-21 21:02:40,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 21:02:40,261 INFO L225 Difference]: With dead ends: 172 [2023-11-21 21:02:40,261 INFO L226 Difference]: Without dead ends: 114 [2023-11-21 21:02:40,262 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 [2023-11-21 21:02:40,263 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 8 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 21:02:40,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 26 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 21:02:40,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-11-21 21:02:40,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 113. [2023-11-21 21:02:40,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 111 states have (on average 1.0360360360360361) internal successors, (115), 112 states have internal predecessors, (115), 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) [2023-11-21 21:02:40,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 115 transitions. [2023-11-21 21:02:40,275 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 115 transitions. Word has length 108 [2023-11-21 21:02:40,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 21:02:40,276 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 115 transitions. [2023-11-21 21:02:40,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2023-11-21 21:02:40,277 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 115 transitions. [2023-11-21 21:02:40,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-21 21:02:40,278 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:02:40,278 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:40,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-21 21:02:40,279 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)] === [2023-11-21 21:02:40,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:40,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1827614054, now seen corresponding path program 1 times [2023-11-21 21:02:40,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:40,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008088736] [2023-11-21 21:02:40,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:40,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:40,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:40,496 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1431 trivial. 0 not checked. [2023-11-21 21:02:40,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:40,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008088736] [2023-11-21 21:02:40,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008088736] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:40,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:40,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 21:02:40,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100387488] [2023-11-21 21:02:40,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:40,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 21:02:40,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:40,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 21:02:40,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 21:02:40,499 INFO L87 Difference]: Start difference. First operand 113 states and 115 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 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) [2023-11-21 21:02:40,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:02:40,545 INFO L93 Difference]: Finished difference Result 123 states and 125 transitions. [2023-11-21 21:02:40,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 21:02:40,546 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 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 [2023-11-21 21:02:40,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 21:02:40,547 INFO L225 Difference]: With dead ends: 123 [2023-11-21 21:02:40,548 INFO L226 Difference]: Without dead ends: 121 [2023-11-21 21:02:40,548 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 [2023-11-21 21:02:40,549 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 5 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 21:02:40,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 25 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 21:02:40,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-11-21 21:02:40,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2023-11-21 21:02:40,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 119 states have (on average 1.0336134453781514) internal successors, (123), 120 states have internal predecessors, (123), 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) [2023-11-21 21:02:40,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 123 transitions. [2023-11-21 21:02:40,583 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 123 transitions. Word has length 110 [2023-11-21 21:02:40,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 21:02:40,584 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 123 transitions. [2023-11-21 21:02:40,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 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) [2023-11-21 21:02:40,584 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 123 transitions. [2023-11-21 21:02:40,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-21 21:02:40,586 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:02:40,586 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:40,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-21 21:02:40,586 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)] === [2023-11-21 21:02:40,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:40,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1623076226, now seen corresponding path program 1 times [2023-11-21 21:02:40,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:40,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894046222] [2023-11-21 21:02:40,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:40,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:40,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:44,390 INFO L134 CoverageAnalysis]: Checked inductivity of 1438 backedges. 0 proven. 1426 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 21:02:44,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:44,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894046222] [2023-11-21 21:02:44,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894046222] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 21:02:44,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493304878] [2023-11-21 21:02:44,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:44,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 21:02:44,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:44,399 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 21:02:44,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-21 21:02:44,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:44,659 INFO L262 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 64 conjunts are in the unsatisfiable core [2023-11-21 21:02:44,666 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:02:44,942 INFO L134 CoverageAnalysis]: Checked inductivity of 1438 backedges. 0 proven. 1426 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 21:02:44,943 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 21:02:49,822 INFO L134 CoverageAnalysis]: Checked inductivity of 1438 backedges. 0 proven. 1426 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 21:02:49,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [493304878] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 21:02:49,823 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 21:02:49,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64, 64] total 129 [2023-11-21 21:02:49,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30099544] [2023-11-21 21:02:49,824 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 21:02:49,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2023-11-21 21:02:49,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:49,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2023-11-21 21:02:49,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2023-11-21 21:02:49,840 INFO L87 Difference]: Start difference. First operand 121 states and 123 transitions. Second operand has 130 states, 130 states have (on average 1.6) internal successors, (208), 129 states have internal predecessors, (208), 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) [2023-11-21 21:02:53,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:02:53,912 INFO L93 Difference]: Finished difference Result 243 states and 278 transitions. [2023-11-21 21:02:53,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2023-11-21 21:02:53,913 INFO L78 Accepts]: Start accepts. Automaton has has 130 states, 130 states have (on average 1.6) internal successors, (208), 129 states have internal predecessors, (208), 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 118 [2023-11-21 21:02:53,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 21:02:53,915 INFO L225 Difference]: With dead ends: 243 [2023-11-21 21:02:53,916 INFO L226 Difference]: Without dead ends: 217 [2023-11-21 21:02:53,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8087 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=10307, Invalid=26365, Unknown=0, NotChecked=0, Total=36672 [2023-11-21 21:02:53,928 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 492 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-21 21:02:53,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [492 Valid, 111 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-21 21:02:53,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2023-11-21 21:02:53,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2023-11-21 21:02:53,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 215 states have (on average 1.0186046511627906) internal successors, (219), 216 states have internal predecessors, (219), 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) [2023-11-21 21:02:53,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 219 transitions. [2023-11-21 21:02:53,944 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 219 transitions. Word has length 118 [2023-11-21 21:02:53,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 21:02:53,944 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 219 transitions. [2023-11-21 21:02:53,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 1.6) internal successors, (208), 129 states have internal predecessors, (208), 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) [2023-11-21 21:02:53,945 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 219 transitions. [2023-11-21 21:02:53,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2023-11-21 21:02:53,948 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:02:53,948 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:53,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-21 21:02:54,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 21:02:54,163 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)] === [2023-11-21 21:02:54,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:54,163 INFO L85 PathProgramCache]: Analyzing trace with hash -752559742, now seen corresponding path program 2 times [2023-11-21 21:02:54,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:54,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452286650] [2023-11-21 21:02:54,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:54,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:54,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:03:04,942 INFO L134 CoverageAnalysis]: Checked inductivity of 5934 backedges. 0 proven. 5922 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 21:03:04,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:03:04,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452286650] [2023-11-21 21:03:04,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452286650] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 21:03:04,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [665186494] [2023-11-21 21:03:04,943 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-21 21:03:04,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 21:03:04,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:03:04,952 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 21:03:04,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8406343-42b2-4c91-ab33-4083960f8328/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-21 21:03:05,257 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-21 21:03:05,257 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 21:03:05,264 INFO L262 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 128 conjunts are in the unsatisfiable core [2023-11-21 21:03:05,274 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:03:05,674 INFO L134 CoverageAnalysis]: Checked inductivity of 5934 backedges. 0 proven. 5922 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 21:03:05,674 INFO L327 TraceCheckSpWp]: Computing backward predicates...