./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu --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 3d4f4fa5c64db6e2d1986e03259021eba4df8a22df3a334e78927feece513264 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:54:28,182 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:54:28,298 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 07:54:28,303 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:54:28,304 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:54:28,349 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:54:28,353 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:54:28,353 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:54:28,354 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:54:28,359 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:54:28,360 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:54:28,361 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:54:28,361 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:54:28,363 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:54:28,364 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:54:28,364 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:54:28,364 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:54:28,365 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:54:28,365 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:54:28,366 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:54:28,366 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:54:28,367 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:54:28,367 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:54:28,367 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:54:28,368 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:54:28,368 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:54:28,368 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:54:28,369 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:54:28,370 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:54:28,370 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:54:28,372 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:54:28,372 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:54:28,372 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:54:28,372 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:54:28,373 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:54:28,373 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:54:28,373 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:54:28,373 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:54:28,374 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:54:28,374 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:54:28,374 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:54:28,374 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_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d4f4fa5c64db6e2d1986e03259021eba4df8a22df3a334e78927feece513264 [2023-11-19 07:54:28,646 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:54:28,675 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:54:28,678 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:54:28,679 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:54:28,680 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:54:28,681 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-1.i [2023-11-19 07:54:31,886 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:54:32,295 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:54:32,296 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-1.i [2023-11-19 07:54:32,317 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/data/5f935f7e0/d1f1a9cb28cb41d1b85b8f11b621404f/FLAGe49efccca [2023-11-19 07:54:32,337 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/data/5f935f7e0/d1f1a9cb28cb41d1b85b8f11b621404f [2023-11-19 07:54:32,339 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:54:32,341 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:54:32,343 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:54:32,343 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:54:32,356 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:54:32,357 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:54:32" (1/1) ... [2023-11-19 07:54:32,358 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6735d7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:32, skipping insertion in model container [2023-11-19 07:54:32,359 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:54:32" (1/1) ... [2023-11-19 07:54:32,423 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:54:33,048 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:54:33,059 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:54:33,158 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:54:33,217 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:54:33,225 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:54:33,225 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:33 WrapperNode [2023-11-19 07:54:33,226 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:54:33,227 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:54:33,228 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:54:33,228 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:54:33,236 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:33" (1/1) ... [2023-11-19 07:54:33,296 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:33" (1/1) ... [2023-11-19 07:54:33,386 INFO L138 Inliner]: procedures = 176, calls = 280, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1335 [2023-11-19 07:54:33,402 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:54:33,402 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:54:33,403 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:54:33,403 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:54:33,413 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:33" (1/1) ... [2023-11-19 07:54:33,413 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:33" (1/1) ... [2023-11-19 07:54:33,424 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:33" (1/1) ... [2023-11-19 07:54:33,437 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:33" (1/1) ... [2023-11-19 07:54:33,525 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:33" (1/1) ... [2023-11-19 07:54:33,556 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:33" (1/1) ... [2023-11-19 07:54:33,564 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:33" (1/1) ... [2023-11-19 07:54:33,571 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:33" (1/1) ... [2023-11-19 07:54:33,583 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:54:33,584 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:54:33,584 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:54:33,584 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:54:33,585 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:33" (1/1) ... [2023-11-19 07:54:33,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:54:33,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:54:33,614 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:54:33,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:54:33,706 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-19 07:54:33,706 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-19 07:54:33,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:54:33,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:54:33,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 07:54:33,707 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 07:54:33,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:54:33,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:54:33,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:54:33,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:54:33,707 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-19 07:54:33,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:54:33,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:54:33,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:54:33,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:54:33,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:54:33,986 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:54:33,988 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:54:35,684 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:54:35,699 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:54:35,699 INFO L302 CfgBuilder]: Removed 63 assume(true) statements. [2023-11-19 07:54:35,707 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:54:35 BoogieIcfgContainer [2023-11-19 07:54:35,707 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:54:35,710 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:54:35,710 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:54:35,714 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:54:35,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:54:32" (1/3) ... [2023-11-19 07:54:35,715 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dbbdeec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:54:35, skipping insertion in model container [2023-11-19 07:54:35,715 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:33" (2/3) ... [2023-11-19 07:54:35,715 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dbbdeec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:54:35, skipping insertion in model container [2023-11-19 07:54:35,715 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:54:35" (3/3) ... [2023-11-19 07:54:35,717 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test7-1.i [2023-11-19 07:54:35,737 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:54:35,737 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-19 07:54:35,802 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:54:35,809 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;@732d9586, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:54:35,810 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-19 07:54:35,816 INFO L276 IsEmpty]: Start isEmpty. Operand has 367 states, 353 states have (on average 1.7025495750708215) internal successors, (601), 360 states have internal predecessors, (601), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 07:54:35,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 07:54:35,822 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:54:35,823 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:54:35,823 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 07:54:35,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:35,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1617610634, now seen corresponding path program 1 times [2023-11-19 07:54:35,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:54:35,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473674143] [2023-11-19 07:54:35,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:35,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:54:35,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:35,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:54:35,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473674143] [2023-11-19 07:54:35,996 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-19 07:54:35,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562282631] [2023-11-19 07:54:35,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:35,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:54:35,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:54:36,000 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:54:36,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:54:36,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:36,207 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:54:36,214 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:54:36,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:54:36,238 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:54:36,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1562282631] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:54:36,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:54:36,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:54:36,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613916897] [2023-11-19 07:54:36,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:54:36,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:54:36,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:54:36,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:54:36,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:54:36,290 INFO L87 Difference]: Start difference. First operand has 367 states, 353 states have (on average 1.7025495750708215) internal successors, (601), 360 states have internal predecessors, (601), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2023-11-19 07:54:36,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:54:36,360 INFO L93 Difference]: Finished difference Result 729 states and 1218 transitions. [2023-11-19 07:54:36,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:54:36,362 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 [2023-11-19 07:54:36,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:54:36,375 INFO L225 Difference]: With dead ends: 729 [2023-11-19 07:54:36,376 INFO L226 Difference]: Without dead ends: 355 [2023-11-19 07:54:36,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:54:36,385 INFO L413 NwaCegarLoop]: 538 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:54:36,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:54:36,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2023-11-19 07:54:36,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 355. [2023-11-19 07:54:36,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 345 states have (on average 1.5130434782608695) internal successors, (522), 350 states have internal predecessors, (522), 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) [2023-11-19 07:54:36,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 528 transitions. [2023-11-19 07:54:36,459 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 528 transitions. Word has length 7 [2023-11-19 07:54:36,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:54:36,460 INFO L495 AbstractCegarLoop]: Abstraction has 355 states and 528 transitions. [2023-11-19 07:54:36,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2023-11-19 07:54:36,460 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 528 transitions. [2023-11-19 07:54:36,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 07:54:36,461 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:54:36,461 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:54:36,489 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:54:36,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:54:36,683 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 07:54:36,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:36,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1617608712, now seen corresponding path program 1 times [2023-11-19 07:54:36,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:54:36,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223793797] [2023-11-19 07:54:36,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:36,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:54:36,723 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:54:36,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2013279488] [2023-11-19 07:54:36,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:36,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:54:36,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:54:36,725 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:54:36,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:54:36,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:36,925 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 07:54:36,928 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:54:36,987 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-19 07:54:36,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-19 07:54:37,042 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-19 07:54:37,042 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-11-19 07:54:37,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:54:37,087 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-19 07:54:37,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:54:37,096 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:54:37,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:54:37,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223793797] [2023-11-19 07:54:37,096 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:54:37,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2013279488] [2023-11-19 07:54:37,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2013279488] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:54:37,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:54:37,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:54:37,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136429890] [2023-11-19 07:54:37,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:54:37,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:54:37,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:54:37,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:54:37,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:54:37,100 INFO L87 Difference]: Start difference. First operand 355 states and 528 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 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) [2023-11-19 07:54:37,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:54:37,970 INFO L93 Difference]: Finished difference Result 628 states and 952 transitions. [2023-11-19 07:54:37,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:54:37,971 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 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 [2023-11-19 07:54:37,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:54:37,978 INFO L225 Difference]: With dead ends: 628 [2023-11-19 07:54:37,978 INFO L226 Difference]: Without dead ends: 626 [2023-11-19 07:54:37,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:54:37,985 INFO L413 NwaCegarLoop]: 493 mSDtfsCounter, 581 mSDsluCounter, 1382 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 581 SdHoareTripleChecker+Valid, 1875 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-19 07:54:37,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [581 Valid, 1875 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-19 07:54:37,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2023-11-19 07:54:38,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 361. [2023-11-19 07:54:38,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 351 states have (on average 1.5071225071225072) internal successors, (529), 356 states have internal predecessors, (529), 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) [2023-11-19 07:54:38,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 535 transitions. [2023-11-19 07:54:38,066 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 535 transitions. Word has length 7 [2023-11-19 07:54:38,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:54:38,070 INFO L495 AbstractCegarLoop]: Abstraction has 361 states and 535 transitions. [2023-11-19 07:54:38,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 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) [2023-11-19 07:54:38,071 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 535 transitions. [2023-11-19 07:54:38,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-19 07:54:38,080 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:54:38,081 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:54:38,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:54:38,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:54:38,297 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 07:54:38,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:38,297 INFO L85 PathProgramCache]: Analyzing trace with hash -719805243, now seen corresponding path program 1 times [2023-11-19 07:54:38,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:54:38,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602916476] [2023-11-19 07:54:38,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:38,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:54:38,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:38,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:54:38,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:54:38,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602916476] [2023-11-19 07:54:38,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602916476] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:54:38,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:54:38,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:54:38,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613941139] [2023-11-19 07:54:38,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:54:38,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:54:38,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:54:38,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:54:38,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:54:38,911 INFO L87 Difference]: Start difference. First operand 361 states and 535 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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) [2023-11-19 07:54:39,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:54:39,360 INFO L93 Difference]: Finished difference Result 688 states and 1029 transitions. [2023-11-19 07:54:39,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:54:39,360 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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 71 [2023-11-19 07:54:39,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:54:39,364 INFO L225 Difference]: With dead ends: 688 [2023-11-19 07:54:39,364 INFO L226 Difference]: Without dead ends: 520 [2023-11-19 07:54:39,365 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 [2023-11-19 07:54:39,367 INFO L413 NwaCegarLoop]: 514 mSDtfsCounter, 240 mSDsluCounter, 960 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 1474 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:54:39,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 1474 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 07:54:39,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2023-11-19 07:54:39,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 361. [2023-11-19 07:54:39,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 351 states have (on average 1.5042735042735043) internal successors, (528), 356 states have internal predecessors, (528), 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) [2023-11-19 07:54:39,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 534 transitions. [2023-11-19 07:54:39,385 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 534 transitions. Word has length 71 [2023-11-19 07:54:39,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:54:39,386 INFO L495 AbstractCegarLoop]: Abstraction has 361 states and 534 transitions. [2023-11-19 07:54:39,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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) [2023-11-19 07:54:39,386 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 534 transitions. [2023-11-19 07:54:39,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-19 07:54:39,389 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:54:39,390 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:54:39,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:54:39,390 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 07:54:39,391 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:39,391 INFO L85 PathProgramCache]: Analyzing trace with hash -721799445, now seen corresponding path program 1 times [2023-11-19 07:54:39,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:54:39,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283436553] [2023-11-19 07:54:39,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:39,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:54:39,442 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:54:39,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1298401840] [2023-11-19 07:54:39,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:39,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:54:39,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:54:39,444 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:54:39,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:54:39,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:39,770 INFO L262 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:54:39,776 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:54:39,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:54:39,795 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:54:39,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:54:39,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283436553] [2023-11-19 07:54:39,796 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:54:39,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1298401840] [2023-11-19 07:54:39,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1298401840] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:54:39,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:54:39,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:54:39,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278662637] [2023-11-19 07:54:39,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:54:39,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:54:39,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:54:39,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:54:39,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:54:39,800 INFO L87 Difference]: Start difference. First operand 361 states and 534 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2023-11-19 07:54:39,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:54:39,900 INFO L93 Difference]: Finished difference Result 735 states and 1091 transitions. [2023-11-19 07:54:39,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:54:39,901 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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 81 [2023-11-19 07:54:39,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:54:39,904 INFO L225 Difference]: With dead ends: 735 [2023-11-19 07:54:39,904 INFO L226 Difference]: Without dead ends: 382 [2023-11-19 07:54:39,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:54:39,908 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 9 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1001 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:54:39,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1001 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:54:39,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2023-11-19 07:54:39,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 381. [2023-11-19 07:54:39,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 371 states have (on average 1.477088948787062) internal successors, (548), 376 states have internal predecessors, (548), 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) [2023-11-19 07:54:39,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 554 transitions. [2023-11-19 07:54:39,930 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 554 transitions. Word has length 81 [2023-11-19 07:54:39,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:54:39,931 INFO L495 AbstractCegarLoop]: Abstraction has 381 states and 554 transitions. [2023-11-19 07:54:39,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2023-11-19 07:54:39,932 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 554 transitions. [2023-11-19 07:54:39,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-19 07:54:39,935 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:54:39,935 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:54:39,958 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-19 07:54:40,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:54:40,149 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 07:54:40,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:40,149 INFO L85 PathProgramCache]: Analyzing trace with hash 2034827821, now seen corresponding path program 1 times [2023-11-19 07:54:40,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:54:40,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985990453] [2023-11-19 07:54:40,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:40,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:54:40,203 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:54:40,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [838605937] [2023-11-19 07:54:40,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:40,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:54:40,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:54:40,205 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:54:40,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 07:54:40,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:40,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:54:40,492 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:54:40,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:54:40,513 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:54:40,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:54:40,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985990453] [2023-11-19 07:54:40,514 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:54:40,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [838605937] [2023-11-19 07:54:40,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [838605937] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:54:40,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:54:40,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:54:40,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353140278] [2023-11-19 07:54:40,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:54:40,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:54:40,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:54:40,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:54:40,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:54:40,517 INFO L87 Difference]: Start difference. First operand 381 states and 554 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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) [2023-11-19 07:54:40,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:54:40,615 INFO L93 Difference]: Finished difference Result 741 states and 1087 transitions. [2023-11-19 07:54:40,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:54:40,616 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 81 [2023-11-19 07:54:40,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:54:40,619 INFO L225 Difference]: With dead ends: 741 [2023-11-19 07:54:40,619 INFO L226 Difference]: Without dead ends: 368 [2023-11-19 07:54:40,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:54:40,621 INFO L413 NwaCegarLoop]: 501 mSDtfsCounter, 165 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 1349 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:54:40,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 1349 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:54:40,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2023-11-19 07:54:40,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 367. [2023-11-19 07:54:40,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 357 states have (on average 1.4761904761904763) internal successors, (527), 362 states have internal predecessors, (527), 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) [2023-11-19 07:54:40,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 533 transitions. [2023-11-19 07:54:40,655 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 533 transitions. Word has length 81 [2023-11-19 07:54:40,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:54:40,657 INFO L495 AbstractCegarLoop]: Abstraction has 367 states and 533 transitions. [2023-11-19 07:54:40,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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) [2023-11-19 07:54:40,658 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 533 transitions. [2023-11-19 07:54:40,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-19 07:54:40,660 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:54:40,661 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:54:40,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:54:40,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:54:40,883 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 07:54:40,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:40,884 INFO L85 PathProgramCache]: Analyzing trace with hash -737059617, now seen corresponding path program 1 times [2023-11-19 07:54:40,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:54:40,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429564392] [2023-11-19 07:54:40,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:40,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:54:40,936 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:54:40,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2097648937] [2023-11-19 07:54:40,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:40,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:54:40,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:54:40,938 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:54:40,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 07:54:41,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:41,226 INFO L262 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:54:41,230 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:54:41,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:54:41,480 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:54:41,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:54:41,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429564392] [2023-11-19 07:54:41,480 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:54:41,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097648937] [2023-11-19 07:54:41,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2097648937] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:54:41,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:54:41,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:54:41,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596028749] [2023-11-19 07:54:41,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:54:41,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:54:41,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:54:41,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:54:41,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:54:41,484 INFO L87 Difference]: Start difference. First operand 367 states and 533 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2023-11-19 07:54:41,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:54:41,603 INFO L93 Difference]: Finished difference Result 987 states and 1456 transitions. [2023-11-19 07:54:41,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:54:41,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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 81 [2023-11-19 07:54:41,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:54:41,609 INFO L225 Difference]: With dead ends: 987 [2023-11-19 07:54:41,609 INFO L226 Difference]: Without dead ends: 628 [2023-11-19 07:54:41,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:54:41,611 INFO L413 NwaCegarLoop]: 688 mSDtfsCounter, 342 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 1178 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:54:41,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 1178 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:54:41,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2023-11-19 07:54:41,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 625. [2023-11-19 07:54:41,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 625 states, 615 states have (on average 1.4991869918699188) internal successors, (922), 620 states have internal predecessors, (922), 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) [2023-11-19 07:54:41,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 928 transitions. [2023-11-19 07:54:41,636 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 928 transitions. Word has length 81 [2023-11-19 07:54:41,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:54:41,636 INFO L495 AbstractCegarLoop]: Abstraction has 625 states and 928 transitions. [2023-11-19 07:54:41,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2023-11-19 07:54:41,637 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 928 transitions. [2023-11-19 07:54:41,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-19 07:54:41,638 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:54:41,638 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:54:41,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:54:41,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:54:41,849 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 07:54:41,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:41,849 INFO L85 PathProgramCache]: Analyzing trace with hash 811018928, now seen corresponding path program 1 times [2023-11-19 07:54:41,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:54:41,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492776574] [2023-11-19 07:54:41,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:41,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:54:41,919 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:54:41,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1215634572] [2023-11-19 07:54:41,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:41,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:54:41,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:54:41,921 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:54:41,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 07:54:42,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:42,325 INFO L262 TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-19 07:54:42,331 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:54:42,339 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-19 07:54:42,382 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2023-11-19 07:54:42,382 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2023-11-19 07:54:42,461 INFO L349 Elim1Store]: treesize reduction 37, result has 31.5 percent of original size [2023-11-19 07:54:42,462 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 31 [2023-11-19 07:54:42,833 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 07:54:42,834 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 45 treesize of output 23 [2023-11-19 07:54:43,040 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:54:43,041 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:54:43,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:54:43,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492776574] [2023-11-19 07:54:43,041 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:54:43,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1215634572] [2023-11-19 07:54:43,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1215634572] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:54:43,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:54:43,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-19 07:54:43,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859113982] [2023-11-19 07:54:43,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:54:43,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 07:54:43,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:54:43,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 07:54:43,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:54:43,051 INFO L87 Difference]: Start difference. First operand 625 states and 928 transitions. Second operand has 12 states, 12 states have (on average 7.416666666666667) internal successors, (89), 12 states have internal predecessors, (89), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:54:44,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:54:44,878 INFO L93 Difference]: Finished difference Result 1379 states and 2045 transitions. [2023-11-19 07:54:44,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 07:54:44,879 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.416666666666667) internal successors, (89), 12 states have internal predecessors, (89), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 96 [2023-11-19 07:54:44,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:54:44,885 INFO L225 Difference]: With dead ends: 1379 [2023-11-19 07:54:44,885 INFO L226 Difference]: Without dead ends: 838 [2023-11-19 07:54:44,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2023-11-19 07:54:44,887 INFO L413 NwaCegarLoop]: 497 mSDtfsCounter, 467 mSDsluCounter, 2080 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 2577 SdHoareTripleChecker+Invalid, 782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:54:44,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [467 Valid, 2577 Invalid, 782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-19 07:54:44,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2023-11-19 07:54:44,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 657. [2023-11-19 07:54:44,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 647 states have (on average 1.482225656877898) internal successors, (959), 652 states have internal predecessors, (959), 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) [2023-11-19 07:54:44,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 965 transitions. [2023-11-19 07:54:44,916 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 965 transitions. Word has length 96 [2023-11-19 07:54:44,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:54:44,916 INFO L495 AbstractCegarLoop]: Abstraction has 657 states and 965 transitions. [2023-11-19 07:54:44,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.416666666666667) internal successors, (89), 12 states have internal predecessors, (89), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:54:44,917 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 965 transitions. [2023-11-19 07:54:44,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-19 07:54:44,918 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:54:44,918 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:54:44,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:54:45,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:54:45,133 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 07:54:45,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:45,133 INFO L85 PathProgramCache]: Analyzing trace with hash -897760972, now seen corresponding path program 1 times [2023-11-19 07:54:45,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:54:45,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897198605] [2023-11-19 07:54:45,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:45,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:54:45,189 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:54:45,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1347813044] [2023-11-19 07:54:45,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:45,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:54:45,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:54:45,191 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:54:45,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-19 07:54:45,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:45,561 INFO L262 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:54:45,566 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:54:45,625 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:54:45,625 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:54:45,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:54:45,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897198605] [2023-11-19 07:54:45,625 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:54:45,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1347813044] [2023-11-19 07:54:45,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1347813044] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:54:45,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:54:45,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:54:45,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969476364] [2023-11-19 07:54:45,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:54:45,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:54:45,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:54:45,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:54:45,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:54:45,628 INFO L87 Difference]: Start difference. First operand 657 states and 965 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:54:45,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:54:45,765 INFO L93 Difference]: Finished difference Result 1398 states and 2089 transitions. [2023-11-19 07:54:45,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:54:45,766 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 96 [2023-11-19 07:54:45,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:54:45,771 INFO L225 Difference]: With dead ends: 1398 [2023-11-19 07:54:45,771 INFO L226 Difference]: Without dead ends: 845 [2023-11-19 07:54:45,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:54:45,773 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 142 mSDsluCounter, 996 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1502 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:54:45,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 1502 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:54:45,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2023-11-19 07:54:45,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 680. [2023-11-19 07:54:45,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 680 states, 670 states have (on average 1.464179104477612) internal successors, (981), 675 states have internal predecessors, (981), 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) [2023-11-19 07:54:45,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 987 transitions. [2023-11-19 07:54:45,802 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 987 transitions. Word has length 96 [2023-11-19 07:54:45,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:54:45,803 INFO L495 AbstractCegarLoop]: Abstraction has 680 states and 987 transitions. [2023-11-19 07:54:45,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:54:45,803 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 987 transitions. [2023-11-19 07:54:45,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-19 07:54:45,804 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:54:45,805 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:54:45,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-19 07:54:46,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:54:46,025 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 07:54:46,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:46,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1327809968, now seen corresponding path program 1 times [2023-11-19 07:54:46,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:54:46,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535888926] [2023-11-19 07:54:46,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:46,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:54:46,084 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:54:46,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1378631214] [2023-11-19 07:54:46,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:46,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:54:46,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:54:46,086 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:54:46,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-19 07:54:46,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:46,609 INFO L262 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 47 conjunts are in the unsatisfiable core [2023-11-19 07:54:46,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:54:46,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-19 07:54:46,652 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2023-11-19 07:54:46,652 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2023-11-19 07:54:46,707 INFO L349 Elim1Store]: treesize reduction 37, result has 31.5 percent of original size [2023-11-19 07:54:46,708 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 31 [2023-11-19 07:54:47,196 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 07:54:47,196 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 45 treesize of output 23 [2023-11-19 07:54:47,586 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:54:47,586 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:54:47,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:54:47,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535888926] [2023-11-19 07:54:47,586 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:54:47,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378631214] [2023-11-19 07:54:47,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1378631214] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:54:47,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:54:47,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-19 07:54:47,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496724198] [2023-11-19 07:54:47,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:54:47,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-19 07:54:47,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:54:47,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-19 07:54:47,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2023-11-19 07:54:47,592 INFO L87 Difference]: Start difference. First operand 680 states and 987 transitions. Second operand has 14 states, 14 states have (on average 6.428571428571429) internal successors, (90), 14 states have internal predecessors, (90), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:54:51,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:54:51,060 INFO L93 Difference]: Finished difference Result 1425 states and 2093 transitions. [2023-11-19 07:54:51,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 07:54:51,061 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.428571428571429) internal successors, (90), 14 states have internal predecessors, (90), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 97 [2023-11-19 07:54:51,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:54:51,066 INFO L225 Difference]: With dead ends: 1425 [2023-11-19 07:54:51,066 INFO L226 Difference]: Without dead ends: 861 [2023-11-19 07:54:51,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=77, Invalid=385, Unknown=0, NotChecked=0, Total=462 [2023-11-19 07:54:51,070 INFO L413 NwaCegarLoop]: 496 mSDtfsCounter, 455 mSDsluCounter, 3992 mSDsCounter, 0 mSdLazyCounter, 2020 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 4488 SdHoareTripleChecker+Invalid, 2029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2020 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:54:51,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 4488 Invalid, 2029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 2020 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-19 07:54:51,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2023-11-19 07:54:51,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 682. [2023-11-19 07:54:51,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 672 states have (on average 1.462797619047619) internal successors, (983), 677 states have internal predecessors, (983), 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) [2023-11-19 07:54:51,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 989 transitions. [2023-11-19 07:54:51,095 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 989 transitions. Word has length 97 [2023-11-19 07:54:51,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:54:51,095 INFO L495 AbstractCegarLoop]: Abstraction has 682 states and 989 transitions. [2023-11-19 07:54:51,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.428571428571429) internal successors, (90), 14 states have internal predecessors, (90), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:54:51,096 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 989 transitions. [2023-11-19 07:54:51,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-19 07:54:51,097 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:54:51,097 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:54:51,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-19 07:54:51,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:54:51,321 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 07:54:51,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:51,321 INFO L85 PathProgramCache]: Analyzing trace with hash 874846793, now seen corresponding path program 1 times [2023-11-19 07:54:51,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:54:51,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533602386] [2023-11-19 07:54:51,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:51,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:54:51,392 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:54:51,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1799773606] [2023-11-19 07:54:51,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:51,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:54:51,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:54:51,394 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:54:51,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-19 07:54:51,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:51,835 INFO L262 TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 07:54:51,839 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:54:51,859 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:54:51,860 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:54:51,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:54:51,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533602386] [2023-11-19 07:54:51,860 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:54:51,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1799773606] [2023-11-19 07:54:51,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1799773606] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:54:51,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:54:51,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:54:51,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706087926] [2023-11-19 07:54:51,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:54:51,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:54:51,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:54:51,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:54:51,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:54:51,865 INFO L87 Difference]: Start difference. First operand 682 states and 989 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:54:51,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:54:51,910 INFO L93 Difference]: Finished difference Result 1210 states and 1766 transitions. [2023-11-19 07:54:51,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:54:51,911 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 98 [2023-11-19 07:54:51,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:54:51,916 INFO L225 Difference]: With dead ends: 1210 [2023-11-19 07:54:51,916 INFO L226 Difference]: Without dead ends: 685 [2023-11-19 07:54:51,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:54:51,918 INFO L413 NwaCegarLoop]: 518 mSDtfsCounter, 2 mSDsluCounter, 1032 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1550 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:54:51,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1550 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:54:51,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2023-11-19 07:54:51,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 685. [2023-11-19 07:54:51,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 674 states have (on average 1.4629080118694362) internal successors, (986), 680 states have internal predecessors, (986), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-19 07:54:51,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 993 transitions. [2023-11-19 07:54:51,946 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 993 transitions. Word has length 98 [2023-11-19 07:54:51,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:54:51,947 INFO L495 AbstractCegarLoop]: Abstraction has 685 states and 993 transitions. [2023-11-19 07:54:51,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:54:51,948 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 993 transitions. [2023-11-19 07:54:51,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-19 07:54:51,951 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:54:51,952 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:54:51,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-19 07:54:52,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-19 07:54:52,176 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 07:54:52,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:52,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1039779399, now seen corresponding path program 1 times [2023-11-19 07:54:52,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:54:52,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059218645] [2023-11-19 07:54:52,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:52,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:54:52,243 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:54:52,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1876570078] [2023-11-19 07:54:52,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:52,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:54:52,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:54:52,245 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:54:52,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-19 07:54:52,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:52,695 INFO L262 TraceCheckSpWp]: Trace formula consists of 592 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-19 07:54:52,699 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:55:12,707 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-19 07:55:12,707 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:55:12,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:12,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059218645] [2023-11-19 07:55:12,708 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:55:12,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1876570078] [2023-11-19 07:55:12,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1876570078] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:12,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:12,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:55:12,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416595774] [2023-11-19 07:55:12,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:12,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:55:12,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:12,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:55:12,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:55:12,711 INFO L87 Difference]: Start difference. First operand 685 states and 993 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:55:14,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:55:14,606 INFO L93 Difference]: Finished difference Result 1275 states and 1863 transitions. [2023-11-19 07:55:14,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:55:14,607 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 100 [2023-11-19 07:55:14,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:55:14,611 INFO L225 Difference]: With dead ends: 1275 [2023-11-19 07:55:14,612 INFO L226 Difference]: Without dead ends: 716 [2023-11-19 07:55:14,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:55:14,614 INFO L413 NwaCegarLoop]: 505 mSDtfsCounter, 16 mSDsluCounter, 1973 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 2478 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:55:14,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 2478 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-19 07:55:14,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2023-11-19 07:55:14,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 708. [2023-11-19 07:55:14,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 697 states have (on average 1.4562410329985653) internal successors, (1015), 703 states have internal predecessors, (1015), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-19 07:55:14,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 1022 transitions. [2023-11-19 07:55:14,641 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 1022 transitions. Word has length 100 [2023-11-19 07:55:14,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:55:14,641 INFO L495 AbstractCegarLoop]: Abstraction has 708 states and 1022 transitions. [2023-11-19 07:55:14,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:55:14,642 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 1022 transitions. [2023-11-19 07:55:14,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-19 07:55:14,643 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:55:14,643 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:14,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-19 07:55:14,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-19 07:55:14,881 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 07:55:14,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:14,881 INFO L85 PathProgramCache]: Analyzing trace with hash 949012959, now seen corresponding path program 1 times [2023-11-19 07:55:14,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:14,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049432280] [2023-11-19 07:55:14,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:14,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:14,943 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:55:14,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [67853109] [2023-11-19 07:55:14,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:14,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:55:14,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:55:14,945 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:55:14,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-19 07:55:15,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:15,476 INFO L262 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-19 07:55:15,481 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:55:15,705 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-19 07:55:15,705 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:55:15,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:15,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049432280] [2023-11-19 07:55:15,706 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:55:15,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [67853109] [2023-11-19 07:55:15,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [67853109] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:15,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:15,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:55:15,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722141984] [2023-11-19 07:55:15,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:15,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:55:15,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:15,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:55:15,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:55:15,709 INFO L87 Difference]: Start difference. First operand 708 states and 1022 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:55:16,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:55:16,423 INFO L93 Difference]: Finished difference Result 1303 states and 1893 transitions. [2023-11-19 07:55:16,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:55:16,424 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 101 [2023-11-19 07:55:16,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:55:16,429 INFO L225 Difference]: With dead ends: 1303 [2023-11-19 07:55:16,429 INFO L226 Difference]: Without dead ends: 731 [2023-11-19 07:55:16,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:55:16,434 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 43 mSDsluCounter, 2082 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 2585 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:55:16,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 2585 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 07:55:16,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2023-11-19 07:55:16,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 712. [2023-11-19 07:55:16,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 701 states have (on average 1.4536376604850214) internal successors, (1019), 707 states have internal predecessors, (1019), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-19 07:55:16,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 1026 transitions. [2023-11-19 07:55:16,463 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 1026 transitions. Word has length 101 [2023-11-19 07:55:16,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:55:16,464 INFO L495 AbstractCegarLoop]: Abstraction has 712 states and 1026 transitions. [2023-11-19 07:55:16,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:55:16,464 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 1026 transitions. [2023-11-19 07:55:16,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-19 07:55:16,465 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:55:16,466 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:16,496 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-19 07:55:16,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-19 07:55:16,692 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 07:55:16,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:16,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1663791402, now seen corresponding path program 1 times [2023-11-19 07:55:16,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:16,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578171610] [2023-11-19 07:55:16,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:16,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:16,754 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:55:16,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [133303721] [2023-11-19 07:55:16,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:16,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:55:16,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:55:16,757 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:55:16,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-19 07:55:17,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:17,292 INFO L262 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-19 07:55:17,296 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:55:17,490 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-19 07:55:17,490 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:55:17,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:17,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578171610] [2023-11-19 07:55:17,491 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:55:17,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [133303721] [2023-11-19 07:55:17,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [133303721] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:17,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:17,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:55:17,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990666873] [2023-11-19 07:55:17,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:17,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:55:17,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:17,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:55:17,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:55:17,494 INFO L87 Difference]: Start difference. First operand 712 states and 1026 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:55:18,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:55:18,215 INFO L93 Difference]: Finished difference Result 1306 states and 1899 transitions. [2023-11-19 07:55:18,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:55:18,216 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 101 [2023-11-19 07:55:18,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:55:18,220 INFO L225 Difference]: With dead ends: 1306 [2023-11-19 07:55:18,220 INFO L226 Difference]: Without dead ends: 728 [2023-11-19 07:55:18,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:55:18,223 INFO L413 NwaCegarLoop]: 510 mSDtfsCounter, 15 mSDsluCounter, 1974 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2484 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-19 07:55:18,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2484 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-19 07:55:18,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2023-11-19 07:55:18,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 720. [2023-11-19 07:55:18,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 709 states have (on average 1.4541607898448519) internal successors, (1031), 715 states have internal predecessors, (1031), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-19 07:55:18,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 1038 transitions. [2023-11-19 07:55:18,258 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 1038 transitions. Word has length 101 [2023-11-19 07:55:18,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:55:18,259 INFO L495 AbstractCegarLoop]: Abstraction has 720 states and 1038 transitions. [2023-11-19 07:55:18,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:55:18,260 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 1038 transitions. [2023-11-19 07:55:18,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-19 07:55:18,262 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:55:18,262 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:18,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-19 07:55:18,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-19 07:55:18,487 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 07:55:18,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:18,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1800788768, now seen corresponding path program 1 times [2023-11-19 07:55:18,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:18,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470216434] [2023-11-19 07:55:18,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:18,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:18,566 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:55:18,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1559399424] [2023-11-19 07:55:18,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:18,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:55:18,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:55:18,569 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:55:18,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c00b1b1-efe8-4961-9131-ed299aeb3136/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-19 07:55:19,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:19,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 592 conjuncts, 123 conjunts are in the unsatisfiable core [2023-11-19 07:55:19,608 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:55:19,628 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-19 07:55:19,634 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-19 07:55:19,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:55:19,677 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2023-11-19 07:55:19,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:55:19,745 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-19 07:55:19,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:55:19,794 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-19 07:55:20,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:55:20,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-19 07:55:20,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:55:20,909 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-19 07:55:20,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:55:20,975 INFO L349 Elim1Store]: treesize reduction 60, result has 34.1 percent of original size [2023-11-19 07:55:20,975 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 34 treesize of output 51 [2023-11-19 07:55:20,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:55:21,000 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-19 07:55:21,020 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-19 07:55:21,030 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-19 07:55:21,185 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 14 [2023-11-19 07:55:21,208 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-11-19 07:55:21,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-19 07:55:21,583 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-19 07:55:21,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 92 treesize of output 81 [2023-11-19 07:55:21,591 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 11 [2023-11-19 07:55:21,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13