./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/busybox-1.22.0/yes-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/yes-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash eabd966d57ba6953807722edbd5e2f1b5dcf2a94cb9b2028bf7aee76df796c93 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:01:32,858 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:01:32,972 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-26 12:01:32,980 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:01:32,981 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:01:33,023 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:01:33,025 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:01:33,025 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:01:33,026 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:01:33,032 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:01:33,032 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:01:33,034 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:01:33,034 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:01:33,036 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:01:33,037 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:01:33,037 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:01:33,038 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:01:33,038 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:01:33,039 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:01:33,039 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:01:33,040 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:01:33,040 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:01:33,041 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 12:01:33,041 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:01:33,042 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:01:33,042 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:01:33,043 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:01:33,043 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:01:33,044 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:01:33,044 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:01:33,046 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:01:33,046 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:01:33,047 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:01:33,047 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:01:33,047 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:01:33,047 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:01:33,048 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:01:33,048 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:01:33,048 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:01:33,048 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:01:33,048 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:01:33,049 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_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eabd966d57ba6953807722edbd5e2f1b5dcf2a94cb9b2028bf7aee76df796c93 [2023-11-26 12:01:33,395 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:01:33,427 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:01:33,429 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:01:33,431 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:01:33,431 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:01:33,433 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/busybox-1.22.0/yes-1.i [2023-11-26 12:01:36,621 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:01:37,096 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:01:37,096 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/sv-benchmarks/c/busybox-1.22.0/yes-1.i [2023-11-26 12:01:37,143 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/data/a169f9ee1/92da8056a2ad44ce82ad52ed6e4a1442/FLAGb0087759d [2023-11-26 12:01:37,159 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/data/a169f9ee1/92da8056a2ad44ce82ad52ed6e4a1442 [2023-11-26 12:01:37,162 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:01:37,164 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:01:37,166 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:01:37,167 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:01:37,174 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:01:37,175 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:01:37" (1/1) ... [2023-11-26 12:01:37,176 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@553cb7de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:37, skipping insertion in model container [2023-11-26 12:01:37,177 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:01:37" (1/1) ... [2023-11-26 12:01:37,287 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:01:38,745 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:01:38,768 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:01:39,018 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:01:39,271 WARN L675 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:01:39,271 WARN L675 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:01:39,271 WARN L675 CHandler]: The function putchar is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:01:39,271 WARN L675 CHandler]: The function fputs is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:01:39,282 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:01:39,283 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:39 WrapperNode [2023-11-26 12:01:39,284 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:01:39,285 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:01:39,285 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:01:39,285 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:01:39,294 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:39" (1/1) ... [2023-11-26 12:01:39,354 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:39" (1/1) ... [2023-11-26 12:01:39,407 INFO L138 Inliner]: procedures = 596, calls = 150, calls flagged for inlining = 16, calls inlined = 14, statements flattened = 514 [2023-11-26 12:01:39,407 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:01:39,408 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:01:39,408 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:01:39,408 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:01:39,421 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:39" (1/1) ... [2023-11-26 12:01:39,422 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:39" (1/1) ... [2023-11-26 12:01:39,430 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:39" (1/1) ... [2023-11-26 12:01:39,461 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2023-11-26 12:01:39,461 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:39" (1/1) ... [2023-11-26 12:01:39,463 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:39" (1/1) ... [2023-11-26 12:01:39,506 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:39" (1/1) ... [2023-11-26 12:01:39,528 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:39" (1/1) ... [2023-11-26 12:01:39,546 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:39" (1/1) ... [2023-11-26 12:01:39,551 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:39" (1/1) ... [2023-11-26 12:01:39,579 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:01:39,580 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:01:39,580 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:01:39,580 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:01:39,581 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:39" (1/1) ... [2023-11-26 12:01:39,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:01:39,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:01:39,624 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:01:39,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:01:39,669 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2023-11-26 12:01:39,669 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-11-26 12:01:39,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 12:01:39,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-26 12:01:39,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-26 12:01:39,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 12:01:39,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 12:01:39,671 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2023-11-26 12:01:39,671 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-26 12:01:39,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:01:39,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-26 12:01:39,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:01:39,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:01:39,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-26 12:01:39,672 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-26 12:01:39,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-26 12:01:39,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-26 12:01:39,673 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 12:01:39,673 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 12:01:39,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 12:01:39,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-26 12:01:39,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 12:01:39,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 12:01:40,089 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:01:40,091 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:01:40,716 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:01:40,787 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:01:40,787 INFO L309 CfgBuilder]: Removed 11 assume(true) statements. [2023-11-26 12:01:40,788 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:01:40 BoogieIcfgContainer [2023-11-26 12:01:40,788 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:01:40,791 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:01:40,791 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:01:40,827 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:01:40,828 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:01:37" (1/3) ... [2023-11-26 12:01:40,829 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26bf23d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:01:40, skipping insertion in model container [2023-11-26 12:01:40,829 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:39" (2/3) ... [2023-11-26 12:01:40,831 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26bf23d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:01:40, skipping insertion in model container [2023-11-26 12:01:40,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:01:40" (3/3) ... [2023-11-26 12:01:40,834 INFO L112 eAbstractionObserver]: Analyzing ICFG yes-1.i [2023-11-26 12:01:40,853 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:01:40,853 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 40 error locations. [2023-11-26 12:01:40,941 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:01:40,947 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;@3b6627e4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:01:40,947 INFO L358 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2023-11-26 12:01:40,960 INFO L276 IsEmpty]: Start isEmpty. Operand has 160 states, 110 states have (on average 1.790909090909091) internal successors, (197), 150 states have internal predecessors, (197), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-26 12:01:40,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-26 12:01:40,966 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:40,967 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-26 12:01:40,967 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-26 12:01:40,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:40,977 INFO L85 PathProgramCache]: Analyzing trace with hash 452696, now seen corresponding path program 1 times [2023-11-26 12:01:40,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:40,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624180198] [2023-11-26 12:01:40,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:40,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:41,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:41,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:01:41,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:41,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624180198] [2023-11-26 12:01:41,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624180198] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:41,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:41,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 12:01:41,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037631920] [2023-11-26 12:01:41,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:41,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:01:41,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:41,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:01:41,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:41,590 INFO L87 Difference]: Start difference. First operand has 160 states, 110 states have (on average 1.790909090909091) internal successors, (197), 150 states have internal predecessors, (197), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:41,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:41,682 INFO L93 Difference]: Finished difference Result 312 states and 420 transitions. [2023-11-26 12:01:41,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:01:41,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-26 12:01:41,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:41,694 INFO L225 Difference]: With dead ends: 312 [2023-11-26 12:01:41,694 INFO L226 Difference]: Without dead ends: 148 [2023-11-26 12:01:41,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:41,701 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 1 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:41,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 354 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:01:41,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-11-26 12:01:41,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2023-11-26 12:01:41,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 101 states have (on average 1.613861386138614) internal successors, (163), 138 states have internal predecessors, (163), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-26 12:01:41,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 177 transitions. [2023-11-26 12:01:41,755 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 177 transitions. Word has length 3 [2023-11-26 12:01:41,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:41,755 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 177 transitions. [2023-11-26 12:01:41,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:41,756 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 177 transitions. [2023-11-26 12:01:41,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-26 12:01:41,756 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:41,756 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2023-11-26 12:01:41,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 12:01:41,757 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-26 12:01:41,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:41,758 INFO L85 PathProgramCache]: Analyzing trace with hash 601431022, now seen corresponding path program 1 times [2023-11-26 12:01:41,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:41,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020513541] [2023-11-26 12:01:41,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:41,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:41,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:41,909 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:01:41,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:41,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020513541] [2023-11-26 12:01:41,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020513541] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:01:41,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105897817] [2023-11-26 12:01:41,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:41,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:41,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:01:41,915 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:01:41,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 12:01:42,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:42,152 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 12:01:42,156 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:01:42,202 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:01:42,202 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:01:42,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2105897817] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:42,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 12:01:42,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2023-11-26 12:01:42,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592467250] [2023-11-26 12:01:42,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:42,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:01:42,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:42,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:01:42,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:01:42,207 INFO L87 Difference]: Start difference. First operand 148 states and 177 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:42,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:42,312 INFO L93 Difference]: Finished difference Result 148 states and 177 transitions. [2023-11-26 12:01:42,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:01:42,314 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-26 12:01:42,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:42,318 INFO L225 Difference]: With dead ends: 148 [2023-11-26 12:01:42,319 INFO L226 Difference]: Without dead ends: 147 [2023-11-26 12:01:42,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:01:42,324 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 3 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:42,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 481 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:01:42,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2023-11-26 12:01:42,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2023-11-26 12:01:42,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 101 states have (on average 1.603960396039604) internal successors, (162), 137 states have internal predecessors, (162), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-26 12:01:42,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 176 transitions. [2023-11-26 12:01:42,345 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 176 transitions. Word has length 6 [2023-11-26 12:01:42,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:42,346 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 176 transitions. [2023-11-26 12:01:42,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:42,346 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 176 transitions. [2023-11-26 12:01:42,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-26 12:01:42,347 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:42,347 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2023-11-26 12:01:42,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 12:01:42,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-26 12:01:42,555 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-26 12:01:42,556 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:42,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1464492565, now seen corresponding path program 1 times [2023-11-26 12:01:42,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:42,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483846776] [2023-11-26 12:01:42,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:42,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:42,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:42,707 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 12:01:42,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:42,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483846776] [2023-11-26 12:01:42,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483846776] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:42,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:42,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:01:42,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256953009] [2023-11-26 12:01:42,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:42,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:01:42,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:42,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:01:42,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:42,711 INFO L87 Difference]: Start difference. First operand 147 states and 176 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:42,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:42,763 INFO L93 Difference]: Finished difference Result 147 states and 176 transitions. [2023-11-26 12:01:42,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:01:42,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-26 12:01:42,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:42,769 INFO L225 Difference]: With dead ends: 147 [2023-11-26 12:01:42,770 INFO L226 Difference]: Without dead ends: 146 [2023-11-26 12:01:42,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:42,778 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 0 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:42,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 322 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:01:42,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2023-11-26 12:01:42,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 144. [2023-11-26 12:01:42,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 99 states have (on average 1.606060606060606) internal successors, (159), 134 states have internal predecessors, (159), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-26 12:01:42,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 173 transitions. [2023-11-26 12:01:42,797 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 173 transitions. Word has length 7 [2023-11-26 12:01:42,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:42,797 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 173 transitions. [2023-11-26 12:01:42,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:42,798 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 173 transitions. [2023-11-26 12:01:42,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-26 12:01:42,798 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:42,799 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:42,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 12:01:42,799 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-26 12:01:42,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:42,800 INFO L85 PathProgramCache]: Analyzing trace with hash -41638815, now seen corresponding path program 1 times [2023-11-26 12:01:42,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:42,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844966909] [2023-11-26 12:01:42,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:42,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:42,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:42,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-26 12:01:42,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:43,022 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:01:43,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:43,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844966909] [2023-11-26 12:01:43,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844966909] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:01:43,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1266406879] [2023-11-26 12:01:43,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:43,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:43,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:01:43,024 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:01:43,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 12:01:43,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:43,232 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:01:43,234 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:01:43,250 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 12:01:43,251 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:01:43,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1266406879] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:43,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 12:01:43,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-26 12:01:43,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104299770] [2023-11-26 12:01:43,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:43,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:01:43,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:43,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:01:43,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:01:43,258 INFO L87 Difference]: Start difference. First operand 144 states and 173 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 12:01:43,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:43,314 INFO L93 Difference]: Finished difference Result 144 states and 173 transitions. [2023-11-26 12:01:43,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:01:43,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2023-11-26 12:01:43,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:43,316 INFO L225 Difference]: With dead ends: 144 [2023-11-26 12:01:43,316 INFO L226 Difference]: Without dead ends: 142 [2023-11-26 12:01:43,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:01:43,320 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 142 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:43,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 173 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:01:43,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2023-11-26 12:01:43,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2023-11-26 12:01:43,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 99 states have (on average 1.5858585858585859) internal successors, (157), 132 states have internal predecessors, (157), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-26 12:01:43,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 171 transitions. [2023-11-26 12:01:43,354 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 171 transitions. Word has length 12 [2023-11-26 12:01:43,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:43,355 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 171 transitions. [2023-11-26 12:01:43,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 12:01:43,356 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 171 transitions. [2023-11-26 12:01:43,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-26 12:01:43,356 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:43,357 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:43,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 12:01:43,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:43,563 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-26 12:01:43,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:43,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1290803189, now seen corresponding path program 1 times [2023-11-26 12:01:43,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:43,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137891298] [2023-11-26 12:01:43,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:43,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:43,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:43,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-26 12:01:43,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:43,742 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:01:43,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:43,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137891298] [2023-11-26 12:01:43,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137891298] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:01:43,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [480599197] [2023-11-26 12:01:43,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:43,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:43,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:01:43,745 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:01:43,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 12:01:43,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:43,931 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 12:01:43,934 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:01:43,960 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:01:43,961 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:01:43,993 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:01:43,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [480599197] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:01:43,994 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 12:01:43,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 4] total 7 [2023-11-26 12:01:43,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932455971] [2023-11-26 12:01:43,994 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 12:01:43,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 12:01:44,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:44,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 12:01:44,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-26 12:01:44,001 INFO L87 Difference]: Start difference. First operand 142 states and 171 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 12:01:44,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:44,080 INFO L93 Difference]: Finished difference Result 288 states and 348 transitions. [2023-11-26 12:01:44,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 12:01:44,081 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2023-11-26 12:01:44,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:44,082 INFO L225 Difference]: With dead ends: 288 [2023-11-26 12:01:44,082 INFO L226 Difference]: Without dead ends: 151 [2023-11-26 12:01:44,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-26 12:01:44,087 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 4 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:44,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 634 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:01:44,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2023-11-26 12:01:44,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2023-11-26 12:01:44,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 108 states have (on average 1.537037037037037) internal successors, (166), 141 states have internal predecessors, (166), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-26 12:01:44,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 180 transitions. [2023-11-26 12:01:44,112 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 180 transitions. Word has length 13 [2023-11-26 12:01:44,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:44,112 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 180 transitions. [2023-11-26 12:01:44,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 12:01:44,113 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 180 transitions. [2023-11-26 12:01:44,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-26 12:01:44,114 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:44,114 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:44,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-26 12:01:44,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:44,322 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-26 12:01:44,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:44,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1994379295, now seen corresponding path program 2 times [2023-11-26 12:01:44,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:44,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298379653] [2023-11-26 12:01:44,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:44,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:44,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:44,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 12:01:44,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:44,584 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:01:44,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:44,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298379653] [2023-11-26 12:01:44,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298379653] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:01:44,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [963641368] [2023-11-26 12:01:44,585 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 12:01:44,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:44,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:01:44,586 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:01:44,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 12:01:44,813 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-26 12:01:44,813 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 12:01:44,814 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 12:01:44,817 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:01:44,880 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-26 12:01:44,880 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:01:44,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [963641368] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:44,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 12:01:44,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2023-11-26 12:01:44,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511889045] [2023-11-26 12:01:44,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:44,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 12:01:44,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:44,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 12:01:44,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-26 12:01:44,883 INFO L87 Difference]: Start difference. First operand 151 states and 180 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 12:01:44,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:44,999 INFO L93 Difference]: Finished difference Result 151 states and 180 transitions. [2023-11-26 12:01:45,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 12:01:45,000 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2023-11-26 12:01:45,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:45,002 INFO L225 Difference]: With dead ends: 151 [2023-11-26 12:01:45,002 INFO L226 Difference]: Without dead ends: 149 [2023-11-26 12:01:45,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-26 12:01:45,003 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 141 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:45,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 458 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:01:45,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2023-11-26 12:01:45,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2023-11-26 12:01:45,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 108 states have (on average 1.5185185185185186) internal successors, (164), 139 states have internal predecessors, (164), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-26 12:01:45,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 178 transitions. [2023-11-26 12:01:45,019 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 178 transitions. Word has length 22 [2023-11-26 12:01:45,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:45,019 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 178 transitions. [2023-11-26 12:01:45,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 12:01:45,020 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 178 transitions. [2023-11-26 12:01:45,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-26 12:01:45,021 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:45,021 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:45,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-26 12:01:45,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:45,229 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-26 12:01:45,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:45,230 INFO L85 PathProgramCache]: Analyzing trace with hash -485985768, now seen corresponding path program 1 times [2023-11-26 12:01:45,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:45,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388506025] [2023-11-26 12:01:45,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:45,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:45,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:45,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 12:01:45,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:45,430 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-26 12:01:45,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:45,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388506025] [2023-11-26 12:01:45,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388506025] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:45,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:45,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:01:45,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247012336] [2023-11-26 12:01:45,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:45,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:01:45,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:45,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:01:45,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:45,433 INFO L87 Difference]: Start difference. First operand 149 states and 178 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 12:01:45,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:45,478 INFO L93 Difference]: Finished difference Result 281 states and 340 transitions. [2023-11-26 12:01:45,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:01:45,478 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2023-11-26 12:01:45,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:45,480 INFO L225 Difference]: With dead ends: 281 [2023-11-26 12:01:45,480 INFO L226 Difference]: Without dead ends: 152 [2023-11-26 12:01:45,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:45,482 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 1 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:45,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 311 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:01:45,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2023-11-26 12:01:45,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2023-11-26 12:01:45,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 111 states have (on average 1.5045045045045045) internal successors, (167), 142 states have internal predecessors, (167), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-26 12:01:45,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 181 transitions. [2023-11-26 12:01:45,493 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 181 transitions. Word has length 27 [2023-11-26 12:01:45,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:45,493 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 181 transitions. [2023-11-26 12:01:45,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 12:01:45,494 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 181 transitions. [2023-11-26 12:01:45,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-26 12:01:45,495 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:45,495 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:45,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 12:01:45,496 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-26 12:01:45,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:45,496 INFO L85 PathProgramCache]: Analyzing trace with hash 332840464, now seen corresponding path program 1 times [2023-11-26 12:01:45,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:45,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398794277] [2023-11-26 12:01:45,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:45,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:45,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:45,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 12:01:45,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:45,713 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-26 12:01:45,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:45,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398794277] [2023-11-26 12:01:45,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398794277] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:01:45,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1568289119] [2023-11-26 12:01:45,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:45,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:45,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:01:45,715 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:01:45,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-26 12:01:45,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:45,990 INFO L262 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 12:01:45,994 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:01:46,073 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:01:46,073 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:01:46,205 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:01:46,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1568289119] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:01:46,205 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 12:01:46,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 6, 7] total 14 [2023-11-26 12:01:46,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640856457] [2023-11-26 12:01:46,206 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 12:01:46,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-26 12:01:46,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:46,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-26 12:01:46,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-26 12:01:46,208 INFO L87 Difference]: Start difference. First operand 152 states and 181 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 12:01:46,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:46,417 INFO L93 Difference]: Finished difference Result 307 states and 371 transitions. [2023-11-26 12:01:46,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-26 12:01:46,418 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2023-11-26 12:01:46,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:46,420 INFO L225 Difference]: With dead ends: 307 [2023-11-26 12:01:46,420 INFO L226 Difference]: Without dead ends: 169 [2023-11-26 12:01:46,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-26 12:01:46,422 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 7 mSDsluCounter, 900 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1052 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:46,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1052 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 12:01:46,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2023-11-26 12:01:46,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2023-11-26 12:01:46,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 129 states have (on average 1.426356589147287) internal successors, (184), 159 states have internal predecessors, (184), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-26 12:01:46,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 198 transitions. [2023-11-26 12:01:46,435 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 198 transitions. Word has length 30 [2023-11-26 12:01:46,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:46,435 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 198 transitions. [2023-11-26 12:01:46,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 12:01:46,436 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 198 transitions. [2023-11-26 12:01:46,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-26 12:01:46,439 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:46,440 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:46,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-26 12:01:46,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:46,647 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-26 12:01:46,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:46,648 INFO L85 PathProgramCache]: Analyzing trace with hash 777174612, now seen corresponding path program 1 times [2023-11-26 12:01:46,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:46,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181536726] [2023-11-26 12:01:46,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:46,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:46,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:46,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 12:01:46,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:46,977 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-26 12:01:46,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:46,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181536726] [2023-11-26 12:01:46,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181536726] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:46,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:46,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:01:46,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928286620] [2023-11-26 12:01:46,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:46,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:01:46,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:46,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:01:46,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:46,981 INFO L87 Difference]: Start difference. First operand 169 states and 198 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 12:01:47,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:47,055 INFO L93 Difference]: Finished difference Result 183 states and 214 transitions. [2023-11-26 12:01:47,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:01:47,056 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2023-11-26 12:01:47,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:47,059 INFO L225 Difference]: With dead ends: 183 [2023-11-26 12:01:47,059 INFO L226 Difference]: Without dead ends: 181 [2023-11-26 12:01:47,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:47,062 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 3 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:47,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 306 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:01:47,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-11-26 12:01:47,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 179. [2023-11-26 12:01:47,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 139 states have (on average 1.4172661870503598) internal successors, (197), 169 states have internal predecessors, (197), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-26 12:01:47,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 211 transitions. [2023-11-26 12:01:47,076 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 211 transitions. Word has length 49 [2023-11-26 12:01:47,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:47,079 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 211 transitions. [2023-11-26 12:01:47,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 12:01:47,079 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 211 transitions. [2023-11-26 12:01:47,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-26 12:01:47,084 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:47,085 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:47,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 12:01:47,085 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-26 12:01:47,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:47,087 INFO L85 PathProgramCache]: Analyzing trace with hash 777176341, now seen corresponding path program 1 times [2023-11-26 12:01:47,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:47,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481393413] [2023-11-26 12:01:47,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:47,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:47,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:47,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 12:01:47,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:47,337 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-26 12:01:47,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:47,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481393413] [2023-11-26 12:01:47,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481393413] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:47,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:47,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:01:47,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577761179] [2023-11-26 12:01:47,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:47,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:01:47,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:47,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:01:47,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:47,340 INFO L87 Difference]: Start difference. First operand 179 states and 211 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 12:01:47,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:47,385 INFO L93 Difference]: Finished difference Result 179 states and 211 transitions. [2023-11-26 12:01:47,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:01:47,386 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2023-11-26 12:01:47,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:47,388 INFO L225 Difference]: With dead ends: 179 [2023-11-26 12:01:47,388 INFO L226 Difference]: Without dead ends: 178 [2023-11-26 12:01:47,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:47,389 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 0 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:47,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 309 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:01:47,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2023-11-26 12:01:47,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 174. [2023-11-26 12:01:47,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 135 states have (on average 1.4148148148148147) internal successors, (191), 164 states have internal predecessors, (191), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-26 12:01:47,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 205 transitions. [2023-11-26 12:01:47,403 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 205 transitions. Word has length 49 [2023-11-26 12:01:47,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:47,403 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 205 transitions. [2023-11-26 12:01:47,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 12:01:47,404 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 205 transitions. [2023-11-26 12:01:47,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-26 12:01:47,405 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:47,405 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:47,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 12:01:47,406 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-26 12:01:47,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:47,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1467843971, now seen corresponding path program 1 times [2023-11-26 12:01:47,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:47,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802729517] [2023-11-26 12:01:47,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:47,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:47,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:47,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 12:01:47,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:47,679 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-26 12:01:47,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:47,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802729517] [2023-11-26 12:01:47,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802729517] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:01:47,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945282789] [2023-11-26 12:01:47,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:47,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:47,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:01:47,683 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:01:47,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-26 12:01:48,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:48,038 INFO L262 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 12:01:48,043 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:01:48,063 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-26 12:01:48,064 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:01:48,099 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-26 12:01:48,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945282789] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:01:48,100 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 12:01:48,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-26 12:01:48,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631249835] [2023-11-26 12:01:48,103 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 12:01:48,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 12:01:48,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:48,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 12:01:48,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-26 12:01:48,105 INFO L87 Difference]: Start difference. First operand 174 states and 205 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 12:01:48,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:48,206 INFO L93 Difference]: Finished difference Result 323 states and 387 transitions. [2023-11-26 12:01:48,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 12:01:48,207 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57 [2023-11-26 12:01:48,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:48,209 INFO L225 Difference]: With dead ends: 323 [2023-11-26 12:01:48,209 INFO L226 Difference]: Without dead ends: 192 [2023-11-26 12:01:48,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-26 12:01:48,210 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 4 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:48,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 462 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:01:48,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2023-11-26 12:01:48,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2023-11-26 12:01:48,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 153 states have (on average 1.3660130718954249) internal successors, (209), 182 states have internal predecessors, (209), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-26 12:01:48,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 223 transitions. [2023-11-26 12:01:48,224 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 223 transitions. Word has length 57 [2023-11-26 12:01:48,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:48,225 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 223 transitions. [2023-11-26 12:01:48,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 12:01:48,225 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 223 transitions. [2023-11-26 12:01:48,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-26 12:01:48,226 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:48,226 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:48,239 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-26 12:01:48,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:48,437 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-26 12:01:48,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:48,438 INFO L85 PathProgramCache]: Analyzing trace with hash -60117195, now seen corresponding path program 1 times [2023-11-26 12:01:48,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:48,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663816322] [2023-11-26 12:01:48,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:48,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:48,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:48,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 12:01:48,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:48,916 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 12:01:48,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:48,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663816322] [2023-11-26 12:01:48,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663816322] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:48,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:48,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 12:01:48,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199974163] [2023-11-26 12:01:48,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:48,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:01:48,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:48,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:01:48,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:01:48,919 INFO L87 Difference]: Start difference. First operand 192 states and 223 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 12:01:48,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:48,975 INFO L93 Difference]: Finished difference Result 293 states and 341 transitions. [2023-11-26 12:01:48,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:01:48,975 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2023-11-26 12:01:48,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:48,977 INFO L225 Difference]: With dead ends: 293 [2023-11-26 12:01:48,977 INFO L226 Difference]: Without dead ends: 195 [2023-11-26 12:01:48,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:01:48,979 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 148 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:48,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 306 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:01:48,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2023-11-26 12:01:48,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 194. [2023-11-26 12:01:48,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 155 states have (on average 1.3612903225806452) internal successors, (211), 184 states have internal predecessors, (211), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-26 12:01:48,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 225 transitions. [2023-11-26 12:01:48,995 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 225 transitions. Word has length 64 [2023-11-26 12:01:48,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:48,995 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 225 transitions. [2023-11-26 12:01:48,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 12:01:48,996 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 225 transitions. [2023-11-26 12:01:48,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-26 12:01:48,997 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:48,997 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:48,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-26 12:01:48,997 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-26 12:01:48,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:48,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1388368956, now seen corresponding path program 1 times [2023-11-26 12:01:48,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:48,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728786817] [2023-11-26 12:01:48,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:48,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:49,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:49,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 12:01:49,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:49,214 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 12:01:49,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:49,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728786817] [2023-11-26 12:01:49,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728786817] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:49,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:49,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:01:49,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094639140] [2023-11-26 12:01:49,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:49,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:01:49,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:49,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:01:49,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:49,218 INFO L87 Difference]: Start difference. First operand 194 states and 225 transitions. Second operand has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 12:01:49,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:49,280 INFO L93 Difference]: Finished difference Result 203 states and 237 transitions. [2023-11-26 12:01:49,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:01:49,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2023-11-26 12:01:49,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:49,282 INFO L225 Difference]: With dead ends: 203 [2023-11-26 12:01:49,282 INFO L226 Difference]: Without dead ends: 201 [2023-11-26 12:01:49,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:49,284 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 4 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:49,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 304 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:01:49,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2023-11-26 12:01:49,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 198. [2023-11-26 12:01:49,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 159 states have (on average 1.3647798742138364) internal successors, (217), 188 states have internal predecessors, (217), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-26 12:01:49,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 231 transitions. [2023-11-26 12:01:49,301 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 231 transitions. Word has length 65 [2023-11-26 12:01:49,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:49,301 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 231 transitions. [2023-11-26 12:01:49,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 12:01:49,302 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 231 transitions. [2023-11-26 12:01:49,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-26 12:01:49,302 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:49,303 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:49,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-26 12:01:49,303 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-26 12:01:49,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:49,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1470282971, now seen corresponding path program 1 times [2023-11-26 12:01:49,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:49,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978640607] [2023-11-26 12:01:49,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:49,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:49,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:49,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 12:01:49,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:49,491 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 12:01:49,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:49,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978640607] [2023-11-26 12:01:49,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978640607] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:49,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:49,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 12:01:49,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220121558] [2023-11-26 12:01:49,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:49,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:01:49,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:49,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:01:49,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:01:49,494 INFO L87 Difference]: Start difference. First operand 198 states and 231 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 12:01:49,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:49,611 INFO L93 Difference]: Finished difference Result 287 states and 332 transitions. [2023-11-26 12:01:49,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 12:01:49,612 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2023-11-26 12:01:49,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:49,614 INFO L225 Difference]: With dead ends: 287 [2023-11-26 12:01:49,614 INFO L226 Difference]: Without dead ends: 198 [2023-11-26 12:01:49,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:01:49,615 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 1 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:49,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 425 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:01:49,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2023-11-26 12:01:49,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2023-11-26 12:01:49,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 159 states have (on average 1.3584905660377358) internal successors, (216), 188 states have internal predecessors, (216), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-26 12:01:49,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 230 transitions. [2023-11-26 12:01:49,631 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 230 transitions. Word has length 67 [2023-11-26 12:01:49,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:49,631 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 230 transitions. [2023-11-26 12:01:49,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 12:01:49,632 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 230 transitions. [2023-11-26 12:01:49,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-26 12:01:49,633 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:49,633 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2023-11-26 12:01:49,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-26 12:01:49,633 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-26 12:01:49,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:49,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1591957181, now seen corresponding path program 1 times [2023-11-26 12:01:49,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:49,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316667858] [2023-11-26 12:01:49,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:49,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:49,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:49,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 12:01:49,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:49,895 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 12:01:49,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:49,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316667858] [2023-11-26 12:01:49,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316667858] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:01:49,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1061715363] [2023-11-26 12:01:49,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:49,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:49,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:01:49,898 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:01:49,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-26 12:01:50,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:50,290 INFO L262 TraceCheckSpWp]: Trace formula consists of 637 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 12:01:50,294 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:01:50,317 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 12:01:50,317 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:01:50,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1061715363] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:50,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 12:01:50,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-26 12:01:50,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691991249] [2023-11-26 12:01:50,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:50,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:01:50,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:50,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:01:50,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:01:50,319 INFO L87 Difference]: Start difference. First operand 198 states and 230 transitions. Second operand has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 12:01:50,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:50,381 INFO L93 Difference]: Finished difference Result 202 states and 235 transitions. [2023-11-26 12:01:50,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:01:50,382 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2023-11-26 12:01:50,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:50,384 INFO L225 Difference]: With dead ends: 202 [2023-11-26 12:01:50,384 INFO L226 Difference]: Without dead ends: 201 [2023-11-26 12:01:50,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:01:50,385 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 10 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:50,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 303 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:01:50,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2023-11-26 12:01:50,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 197. [2023-11-26 12:01:50,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 159 states have (on average 1.3522012578616351) internal successors, (215), 187 states have internal predecessors, (215), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-26 12:01:50,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 229 transitions. [2023-11-26 12:01:50,400 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 229 transitions. Word has length 69 [2023-11-26 12:01:50,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:50,400 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 229 transitions. [2023-11-26 12:01:50,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 12:01:50,401 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 229 transitions. [2023-11-26 12:01:50,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-26 12:01:50,402 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:50,402 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2023-11-26 12:01:50,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-26 12:01:50,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:50,610 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-26 12:01:50,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:50,610 INFO L85 PathProgramCache]: Analyzing trace with hash 2106032576, now seen corresponding path program 1 times [2023-11-26 12:01:50,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:50,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302191991] [2023-11-26 12:01:50,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:50,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:50,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:50,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 12:01:50,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:50,871 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 12:01:50,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:50,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302191991] [2023-11-26 12:01:50,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302191991] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:01:50,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926838805] [2023-11-26 12:01:50,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:50,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:50,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:01:50,874 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:01:50,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-26 12:01:51,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:51,275 INFO L262 TraceCheckSpWp]: Trace formula consists of 638 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 12:01:51,278 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:01:51,300 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 12:01:51,300 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:01:51,327 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 12:01:51,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926838805] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:01:51,328 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 12:01:51,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-26 12:01:51,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116270569] [2023-11-26 12:01:51,329 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 12:01:51,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 12:01:51,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:51,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 12:01:51,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-26 12:01:51,330 INFO L87 Difference]: Start difference. First operand 197 states and 229 transitions. Second operand has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 12:01:51,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:51,423 INFO L93 Difference]: Finished difference Result 222 states and 266 transitions. [2023-11-26 12:01:51,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 12:01:51,424 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2023-11-26 12:01:51,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:51,426 INFO L225 Difference]: With dead ends: 222 [2023-11-26 12:01:51,426 INFO L226 Difference]: Without dead ends: 221 [2023-11-26 12:01:51,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-26 12:01:51,427 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 24 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:51,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 453 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:01:51,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2023-11-26 12:01:51,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 209. [2023-11-26 12:01:51,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 171 states have (on average 1.3625730994152048) internal successors, (233), 199 states have internal predecessors, (233), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-26 12:01:51,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 247 transitions. [2023-11-26 12:01:51,444 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 247 transitions. Word has length 70 [2023-11-26 12:01:51,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:51,445 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 247 transitions. [2023-11-26 12:01:51,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 12:01:51,445 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 247 transitions. [2023-11-26 12:01:51,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-26 12:01:51,446 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:51,446 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:51,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-26 12:01:51,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-26 12:01:51,654 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-26 12:01:51,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:51,655 INFO L85 PathProgramCache]: Analyzing trace with hash 687250084, now seen corresponding path program 1 times [2023-11-26 12:01:51,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:51,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528000891] [2023-11-26 12:01:51,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:51,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:51,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:52,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 12:01:52,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:52,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-26 12:01:52,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:52,084 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 12:01:52,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:52,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528000891] [2023-11-26 12:01:52,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528000891] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:52,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:52,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:01:52,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818057445] [2023-11-26 12:01:52,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:52,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:01:52,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:52,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:01:52,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:01:52,088 INFO L87 Difference]: Start difference. First operand 209 states and 247 transitions. Second operand has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 12:01:52,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:52,325 INFO L93 Difference]: Finished difference Result 210 states and 248 transitions. [2023-11-26 12:01:52,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:01:52,326 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (2), 2 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 72 [2023-11-26 12:01:52,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:52,328 INFO L225 Difference]: With dead ends: 210 [2023-11-26 12:01:52,328 INFO L226 Difference]: Without dead ends: 208 [2023-11-26 12:01:52,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:01:52,329 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 34 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:52,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 305 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 12:01:52,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2023-11-26 12:01:52,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 207. [2023-11-26 12:01:52,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 171 states have (on average 1.3508771929824561) internal successors, (231), 197 states have internal predecessors, (231), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-26 12:01:52,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 245 transitions. [2023-11-26 12:01:52,346 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 245 transitions. Word has length 72 [2023-11-26 12:01:52,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:52,347 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 245 transitions. [2023-11-26 12:01:52,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 12:01:52,347 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 245 transitions. [2023-11-26 12:01:52,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-26 12:01:52,348 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:52,349 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:52,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-26 12:01:52,349 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-26 12:01:52,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:52,350 INFO L85 PathProgramCache]: Analyzing trace with hash -170083632, now seen corresponding path program 1 times [2023-11-26 12:01:52,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:52,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434329147] [2023-11-26 12:01:52,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:52,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:52,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:52,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 12:01:52,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:52,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-26 12:01:52,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:52,984 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 12:01:52,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:52,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434329147] [2023-11-26 12:01:52,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434329147] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:52,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:52,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 12:01:52,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278789410] [2023-11-26 12:01:52,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:52,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 12:01:52,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:52,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 12:01:52,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-26 12:01:52,987 INFO L87 Difference]: Start difference. First operand 207 states and 245 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 12:01:53,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:53,273 INFO L93 Difference]: Finished difference Result 341 states and 411 transitions. [2023-11-26 12:01:53,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 12:01:53,274 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 73 [2023-11-26 12:01:53,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:53,276 INFO L225 Difference]: With dead ends: 341 [2023-11-26 12:01:53,276 INFO L226 Difference]: Without dead ends: 208 [2023-11-26 12:01:53,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-26 12:01:53,277 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 151 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:53,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 645 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 12:01:53,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2023-11-26 12:01:53,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 207. [2023-11-26 12:01:53,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 171 states have (on average 1.345029239766082) internal successors, (230), 197 states have internal predecessors, (230), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-26 12:01:53,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 244 transitions. [2023-11-26 12:01:53,297 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 244 transitions. Word has length 73 [2023-11-26 12:01:53,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:53,297 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 244 transitions. [2023-11-26 12:01:53,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 12:01:53,298 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 244 transitions. [2023-11-26 12:01:53,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-26 12:01:53,298 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:53,299 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:53,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-26 12:01:53,299 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-26 12:01:53,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:53,300 INFO L85 PathProgramCache]: Analyzing trace with hash 43695947, now seen corresponding path program 2 times [2023-11-26 12:01:53,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:53,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090217703] [2023-11-26 12:01:53,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:53,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:53,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:53,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 12:01:53,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:53,649 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-11-26 12:01:53,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:53,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090217703] [2023-11-26 12:01:53,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090217703] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:01:53,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1243003217] [2023-11-26 12:01:53,650 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 12:01:53,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:53,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:01:53,655 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:01:53,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-26 12:01:54,223 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 12:01:54,223 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 12:01:54,228 INFO L262 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 12:01:54,231 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:01:54,317 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 58 proven. 22 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2023-11-26 12:01:54,317 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:01:54,438 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 58 proven. 22 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2023-11-26 12:01:54,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1243003217] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:01:54,439 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 12:01:54,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2023-11-26 12:01:54,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34874150] [2023-11-26 12:01:54,441 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 12:01:54,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-26 12:01:54,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:54,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-26 12:01:54,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-26 12:01:54,444 INFO L87 Difference]: Start difference. First operand 207 states and 244 transitions. Second operand has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 12:01:54,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:54,974 INFO L93 Difference]: Finished difference Result 397 states and 481 transitions. [2023-11-26 12:01:54,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-26 12:01:54,975 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2023-11-26 12:01:54,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:54,977 INFO L225 Difference]: With dead ends: 397 [2023-11-26 12:01:54,977 INFO L226 Difference]: Without dead ends: 242 [2023-11-26 12:01:54,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=330, Invalid=792, Unknown=0, NotChecked=0, Total=1122 [2023-11-26 12:01:54,980 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 11 mSDsluCounter, 1008 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1156 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:54,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1156 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 12:01:54,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2023-11-26 12:01:54,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2023-11-26 12:01:54,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 207 states have (on average 1.2801932367149758) internal successors, (265), 232 states have internal predecessors, (265), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-26 12:01:55,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 279 transitions. [2023-11-26 12:01:55,001 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 279 transitions. Word has length 75 [2023-11-26 12:01:55,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:55,001 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 279 transitions. [2023-11-26 12:01:55,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 12:01:55,002 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 279 transitions. [2023-11-26 12:01:55,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-26 12:01:55,003 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:55,003 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:55,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-26 12:01:55,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:55,219 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-26 12:01:55,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:55,220 INFO L85 PathProgramCache]: Analyzing trace with hash 55250545, now seen corresponding path program 1 times [2023-11-26 12:01:55,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:55,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928944404] [2023-11-26 12:01:55,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:55,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:55,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:03,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 12:02:03,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:03,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-26 12:02:03,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:03,630 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2023-11-26 12:02:03,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:03,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928944404] [2023-11-26 12:02:03,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928944404] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:02:03,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1807483954] [2023-11-26 12:02:03,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:03,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:02:03,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:02:03,635 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:02:03,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c387d78-7c09-419d-be96-8078843e4e51/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-26 12:02:04,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:04,206 INFO L262 TraceCheckSpWp]: Trace formula consists of 890 conjuncts, 65 conjunts are in the unsatisfiable core [2023-11-26 12:02:04,220 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:02:04,258 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 [2023-11-26 12:02:04,311 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-11-26 12:02:04,312 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 17 treesize of output 21 [2023-11-26 12:02:04,322 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 15 treesize of output 11 [2023-11-26 12:02:04,330 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 15 treesize of output 11 [2023-11-26 12:02:04,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:02:04,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:02:04,449 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 56 [2023-11-26 12:02:04,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:02:04,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:02:04,465 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 62 [2023-11-26 12:02:04,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:02:04,481 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 43 [2023-11-26 12:02:04,514 INFO L349 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2023-11-26 12:02:04,514 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 77 treesize of output 71 [2023-11-26 12:02:04,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:02:04,529 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 33 treesize of output 15 [2023-11-26 12:02:04,547 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2023-11-26 12:02:04,547 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 18 [2023-11-26 12:02:04,700 INFO L349 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2023-11-26 12:02:04,701 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 71 treesize of output 65 [2023-11-26 12:02:04,724 INFO L349 Elim1Store]: treesize reduction 21, result has 38.2 percent of original size [2023-11-26 12:02:04,725 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 28 treesize of output 23 [2023-11-26 12:02:04,733 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 9 treesize of output 3 [2023-11-26 12:02:04,918 INFO L349 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2023-11-26 12:02:04,918 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 71 treesize of output 65 [2023-11-26 12:02:04,938 INFO L349 Elim1Store]: treesize reduction 21, result has 38.2 percent of original size [2023-11-26 12:02:04,938 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 28 treesize of output 23 [2023-11-26 12:02:04,946 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 9 treesize of output 3 [2023-11-26 12:02:05,136 INFO L349 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2023-11-26 12:02:05,137 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 71 treesize of output 65 [2023-11-26 12:02:05,159 INFO L349 Elim1Store]: treesize reduction 21, result has 38.2 percent of original size [2023-11-26 12:02:05,159 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 28 treesize of output 23 [2023-11-26 12:02:05,165 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 9 treesize of output 3 [2023-11-26 12:02:05,348 INFO L349 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2023-11-26 12:02:05,349 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 71 treesize of output 65 [2023-11-26 12:02:05,370 INFO L349 Elim1Store]: treesize reduction 21, result has 38.2 percent of original size [2023-11-26 12:02:05,370 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 28 treesize of output 23 [2023-11-26 12:02:05,376 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 9 treesize of output 3 [2023-11-26 12:02:05,566 INFO L349 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2023-11-26 12:02:05,567 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 71 treesize of output 65 [2023-11-26 12:02:05,589 INFO L349 Elim1Store]: treesize reduction 21, result has 38.2 percent of original size [2023-11-26 12:02:05,590 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 28 treesize of output 23 [2023-11-26 12:02:05,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 9 treesize of output 3 [2023-11-26 12:02:05,773 INFO L349 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2023-11-26 12:02:05,774 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 71 treesize of output 65 [2023-11-26 12:02:05,795 INFO L349 Elim1Store]: treesize reduction 21, result has 38.2 percent of original size [2023-11-26 12:02:05,796 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 28 treesize of output 23 [2023-11-26 12:02:05,805 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 9 treesize of output 3 [2023-11-26 12:02:05,992 INFO L349 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2023-11-26 12:02:05,993 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 71 treesize of output 65 [2023-11-26 12:02:06,013 INFO L349 Elim1Store]: treesize reduction 21, result has 38.2 percent of original size [2023-11-26 12:02:06,014 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 28 treesize of output 23 [2023-11-26 12:02:06,020 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 9 treesize of output 3 [2023-11-26 12:02:06,203 INFO L349 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2023-11-26 12:02:06,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 71 treesize of output 65 [2023-11-26 12:02:06,226 INFO L349 Elim1Store]: treesize reduction 21, result has 38.2 percent of original size [2023-11-26 12:02:06,226 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 28 treesize of output 23 [2023-11-26 12:02:06,235 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 9 treesize of output 3 [2023-11-26 12:02:06,435 INFO L349 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2023-11-26 12:02:06,436 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 71 treesize of output 65 [2023-11-26 12:02:06,460 INFO L349 Elim1Store]: treesize reduction 21, result has 38.2 percent of original size [2023-11-26 12:02:06,460 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 28 treesize of output 23 [2023-11-26 12:02:06,470 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 9 treesize of output 3 [2023-11-26 12:02:06,650 INFO L349 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2023-11-26 12:02:06,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 71 treesize of output 65 [2023-11-26 12:02:06,670 INFO L349 Elim1Store]: treesize reduction 21, result has 38.2 percent of original size [2023-11-26 12:02:06,670 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 28 treesize of output 23 [2023-11-26 12:02:06,676 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 9 treesize of output 3 [2023-11-26 12:02:07,203 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 52 treesize of output 31 [2023-11-26 12:02:07,244 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2023-11-26 12:02:07,245 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:02:20,522 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-26 12:02:20,523 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 663 treesize of output 669 [2023-11-26 12:02:20,848 INFO L349 Elim1Store]: treesize reduction 88, result has 46.7 percent of original size [2023-11-26 12:02:20,849 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 346 treesize of output 199 [2023-11-26 12:02:20,880 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 1635 treesize of output 1617 [2023-11-26 12:02:21,081 INFO L349 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2023-11-26 12:02:21,083 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 132167 treesize of output 131742 [2023-11-26 12:02:21,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 573 treesize of output 545 [2023-11-26 12:02:21,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 545 treesize of output 529 [2023-11-26 12:02:21,611 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 529 treesize of output 501 [2023-11-26 12:02:21,638 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 501 treesize of output 469 [2023-11-26 12:02:21,667 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 469 treesize of output 461 [2023-11-26 12:02:21,695 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 461 treesize of output 457 [2023-11-26 12:02:21,725 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 457 treesize of output 443 [2023-11-26 12:02:21,759 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 443 treesize of output 433 [2023-11-26 12:02:21,789 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 433 treesize of output 425 [2023-11-26 12:02:22,389 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 6 [2023-11-26 12:02:22,506 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-26 12:02:22,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 113 treesize of output 129 [2023-11-26 12:02:23,080 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 48 proven. 29 refuted. 47 times theorem prover too weak. 167 trivial. 0 not checked. [2023-11-26 12:02:23,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1807483954] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:02:23,081 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 12:02:23,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8, 14] total 30 [2023-11-26 12:02:23,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309714665] [2023-11-26 12:02:23,082 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 12:02:23,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-11-26 12:02:23,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:23,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-11-26 12:02:23,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=744, Unknown=26, NotChecked=0, Total=870 [2023-11-26 12:02:23,086 INFO L87 Difference]: Start difference. First operand 242 states and 279 transitions. Second operand has 30 states, 30 states have (on average 4.2) internal successors, (126), 29 states have internal predecessors, (126), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4)