./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/busybox-1.22.0/head-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/head-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e7c6e6d6b508cc7e8b4b8b024471ff0eb17f579c7977a910bbe95623e5bb1a4e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:09:27,551 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:09:27,650 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-19 07:09:27,655 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:09:27,656 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:09:27,683 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:09:27,684 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:09:27,684 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:09:27,685 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:09:27,686 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:09:27,687 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:09:27,687 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:09:27,688 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:09:27,688 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:09:27,689 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:09:27,689 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:09:27,690 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:09:27,691 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:09:27,691 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:09:27,692 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:09:27,692 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:09:27,693 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:09:27,693 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:09:27,694 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:09:27,694 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:09:27,695 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:09:27,695 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:09:27,695 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:09:27,696 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:09:27,696 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:09:27,697 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:09:27,697 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:09:27,698 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:09:27,698 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:09:27,698 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:09:27,699 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:09:27,699 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:09:27,700 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:09:27,700 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_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e7c6e6d6b508cc7e8b4b8b024471ff0eb17f579c7977a910bbe95623e5bb1a4e [2023-11-19 07:09:28,016 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:09:28,038 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:09:28,041 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:09:28,042 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:09:28,043 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:09:28,044 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/busybox-1.22.0/head-2.i [2023-11-19 07:09:31,138 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:09:31,677 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:09:31,677 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/sv-benchmarks/c/busybox-1.22.0/head-2.i [2023-11-19 07:09:31,721 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/data/42c24b541/2f6990de16cb4f2ba985a652f2c9f2d2/FLAGad54f38b4 [2023-11-19 07:09:31,749 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/data/42c24b541/2f6990de16cb4f2ba985a652f2c9f2d2 [2023-11-19 07:09:31,754 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:09:31,755 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:09:31,759 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:09:31,759 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:09:31,765 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:09:31,769 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:09:31" (1/1) ... [2023-11-19 07:09:31,772 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6036940b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:31, skipping insertion in model container [2023-11-19 07:09:31,772 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:09:31" (1/1) ... [2023-11-19 07:09:31,882 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:09:33,517 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:09:33,558 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:09:33,803 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:09:34,018 WARN L675 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:09:34,019 WARN L675 CHandler]: The function strtoull is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:09:34,019 WARN L675 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:09:34,019 WARN L675 CHandler]: The function fopen is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:09:34,019 WARN L675 CHandler]: The function ferror is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:09:34,019 WARN L675 CHandler]: The function fclose is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:09:34,020 WARN L675 CHandler]: The function putchar is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:09:34,020 WARN L675 CHandler]: The function fputs is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:09:34,021 WARN L675 CHandler]: The function fgetc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:09:34,028 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:09:34,028 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:34 WrapperNode [2023-11-19 07:09:34,028 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:09:34,029 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:09:34,030 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:09:34,030 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:09:34,036 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:34" (1/1) ... [2023-11-19 07:09:34,114 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:34" (1/1) ... [2023-11-19 07:09:34,219 INFO L138 Inliner]: procedures = 581, calls = 371, calls flagged for inlining = 30, calls inlined = 28, statements flattened = 1128 [2023-11-19 07:09:34,219 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:09:34,220 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:09:34,220 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:09:34,220 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:09:34,231 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:34" (1/1) ... [2023-11-19 07:09:34,231 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:34" (1/1) ... [2023-11-19 07:09:34,259 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:34" (1/1) ... [2023-11-19 07:09:34,259 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:34" (1/1) ... [2023-11-19 07:09:34,372 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:34" (1/1) ... [2023-11-19 07:09:34,384 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:34" (1/1) ... [2023-11-19 07:09:34,395 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:34" (1/1) ... [2023-11-19 07:09:34,410 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:34" (1/1) ... [2023-11-19 07:09:34,438 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:09:34,439 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:09:34,440 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:09:34,443 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:09:34,444 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:34" (1/1) ... [2023-11-19 07:09:34,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:09:34,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:09:34,479 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:09:34,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:09:34,526 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2023-11-19 07:09:34,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc [2023-11-19 07:09:34,527 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc [2023-11-19 07:09:34,527 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2023-11-19 07:09:34,527 INFO L138 BoogieDeclarations]: Found implementation of procedure _IO_getc [2023-11-19 07:09:34,527 INFO L130 BoogieDeclarations]: Found specification of procedure xrealloc [2023-11-19 07:09:34,528 INFO L138 BoogieDeclarations]: Found implementation of procedure xrealloc [2023-11-19 07:09:34,528 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-11-19 07:09:34,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:09:34,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 07:09:34,530 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2023-11-19 07:09:34,530 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2023-11-19 07:09:34,530 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2023-11-19 07:09:34,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 07:09:34,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:09:34,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:09:34,531 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2023-11-19 07:09:34,531 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-19 07:09:34,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:09:34,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:09:34,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:09:34,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:09:34,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-19 07:09:34,533 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-19 07:09:34,534 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc [2023-11-19 07:09:34,534 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc [2023-11-19 07:09:34,534 INFO L130 BoogieDeclarations]: Found specification of procedure getopt [2023-11-19 07:09:34,535 INFO L138 BoogieDeclarations]: Found implementation of procedure getopt [2023-11-19 07:09:34,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 07:09:34,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 07:09:34,536 INFO L130 BoogieDeclarations]: Found specification of procedure bb_simple_perror_msg [2023-11-19 07:09:34,536 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_simple_perror_msg [2023-11-19 07:09:34,536 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2023-11-19 07:09:34,536 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:09:34,536 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:09:34,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:09:34,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:09:34,537 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2023-11-19 07:09:34,537 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2023-11-19 07:09:34,537 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2023-11-19 07:09:34,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:09:34,537 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc_fgets [2023-11-19 07:09:34,538 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc_fgets [2023-11-19 07:09:34,538 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2023-11-19 07:09:34,538 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2023-11-19 07:09:34,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:09:35,001 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:09:35,004 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:09:36,466 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:09:36,480 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:09:36,481 INFO L302 CfgBuilder]: Removed 18 assume(true) statements. [2023-11-19 07:09:36,488 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:09:36 BoogieIcfgContainer [2023-11-19 07:09:36,488 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:09:36,491 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:09:36,491 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:09:36,495 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:09:36,495 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:09:31" (1/3) ... [2023-11-19 07:09:36,496 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2db6a59b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:09:36, skipping insertion in model container [2023-11-19 07:09:36,497 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:34" (2/3) ... [2023-11-19 07:09:36,497 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2db6a59b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:09:36, skipping insertion in model container [2023-11-19 07:09:36,497 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:09:36" (3/3) ... [2023-11-19 07:09:36,499 INFO L112 eAbstractionObserver]: Analyzing ICFG head-2.i [2023-11-19 07:09:36,521 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:09:36,521 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2023-11-19 07:09:36,616 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:09:36,624 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;@6d4990ea, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:09:36,624 INFO L358 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2023-11-19 07:09:36,631 INFO L276 IsEmpty]: Start isEmpty. Operand has 387 states, 301 states have (on average 1.584717607973422) internal successors, (477), 345 states have internal predecessors, (477), 31 states have call successors, (31), 11 states have call predecessors, (31), 11 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-19 07:09:36,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 07:09:36,639 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:09:36,639 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-19 07:09:36,640 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-19 07:09:36,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:09:36,647 INFO L85 PathProgramCache]: Analyzing trace with hash 14686213, now seen corresponding path program 1 times [2023-11-19 07:09:36,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:09:36,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078157975] [2023-11-19 07:09:36,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:36,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:09:36,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:37,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:09:37,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:09:37,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078157975] [2023-11-19 07:09:37,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078157975] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:09:37,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:09:37,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:09:37,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841890834] [2023-11-19 07:09:37,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:09:37,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:09:37,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:09:37,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:09:37,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:09:37,246 INFO L87 Difference]: Start difference. First operand has 387 states, 301 states have (on average 1.584717607973422) internal successors, (477), 345 states have internal predecessors, (477), 31 states have call successors, (31), 11 states have call predecessors, (31), 11 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:09:37,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:09:37,374 INFO L93 Difference]: Finished difference Result 759 states and 1086 transitions. [2023-11-19 07:09:37,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:09:37,377 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2023-11-19 07:09:37,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:09:37,391 INFO L225 Difference]: With dead ends: 759 [2023-11-19 07:09:37,391 INFO L226 Difference]: Without dead ends: 372 [2023-11-19 07:09:37,400 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 [2023-11-19 07:09:37,404 INFO L413 NwaCegarLoop]: 491 mSDtfsCounter, 1 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:09:37,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 976 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:09:37,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2023-11-19 07:09:37,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2023-11-19 07:09:37,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 291 states have (on average 1.4982817869415808) internal successors, (436), 336 states have internal predecessors, (436), 31 states have call successors, (31), 11 states have call predecessors, (31), 10 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-19 07:09:37,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 492 transitions. [2023-11-19 07:09:37,489 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 492 transitions. Word has length 4 [2023-11-19 07:09:37,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:09:37,489 INFO L495 AbstractCegarLoop]: Abstraction has 372 states and 492 transitions. [2023-11-19 07:09:37,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:09:37,490 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 492 transitions. [2023-11-19 07:09:37,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 07:09:37,490 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:09:37,490 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-19 07:09:37,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:09:37,491 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-19 07:09:37,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:09:37,492 INFO L85 PathProgramCache]: Analyzing trace with hash -569204310, now seen corresponding path program 1 times [2023-11-19 07:09:37,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:09:37,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080216305] [2023-11-19 07:09:37,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:37,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:09:37,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:37,756 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:09:37,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:09:37,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080216305] [2023-11-19 07:09:37,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080216305] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:09:37,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031964312] [2023-11-19 07:09:37,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:37,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:09:37,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:09:37,763 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:09:37,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:09:38,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:38,049 INFO L262 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:09:38,053 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:09:38,095 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:09:38,095 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:09:38,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031964312] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:09:38,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:09:38,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-19 07:09:38,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007221336] [2023-11-19 07:09:38,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:09:38,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:09:38,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:09:38,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:09:38,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:09:38,100 INFO L87 Difference]: Start difference. First operand 372 states and 492 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:09:38,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:09:38,151 INFO L93 Difference]: Finished difference Result 372 states and 492 transitions. [2023-11-19 07:09:38,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:09:38,151 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-19 07:09:38,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:09:38,155 INFO L225 Difference]: With dead ends: 372 [2023-11-19 07:09:38,156 INFO L226 Difference]: Without dead ends: 371 [2023-11-19 07:09:38,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:09:38,158 INFO L413 NwaCegarLoop]: 483 mSDtfsCounter, 5 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:09:38,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 964 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:09:38,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2023-11-19 07:09:38,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 371. [2023-11-19 07:09:38,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 291 states have (on average 1.4948453608247423) internal successors, (435), 335 states have internal predecessors, (435), 31 states have call successors, (31), 11 states have call predecessors, (31), 10 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-19 07:09:38,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 491 transitions. [2023-11-19 07:09:38,210 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 491 transitions. Word has length 7 [2023-11-19 07:09:38,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:09:38,211 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 491 transitions. [2023-11-19 07:09:38,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:09:38,211 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 491 transitions. [2023-11-19 07:09:38,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 07:09:38,211 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:09:38,212 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2023-11-19 07:09:38,239 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:09:38,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:09:38,413 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-19 07:09:38,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:09:38,413 INFO L85 PathProgramCache]: Analyzing trace with hash -465463934, now seen corresponding path program 1 times [2023-11-19 07:09:38,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:09:38,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076686445] [2023-11-19 07:09:38,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:38,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:09:38,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:38,543 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:09:38,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:09:38,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076686445] [2023-11-19 07:09:38,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076686445] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:09:38,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:09:38,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:09:38,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855889163] [2023-11-19 07:09:38,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:09:38,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:09:38,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:09:38,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:09:38,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:09:38,545 INFO L87 Difference]: Start difference. First operand 371 states and 491 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:09:38,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:09:38,571 INFO L93 Difference]: Finished difference Result 371 states and 491 transitions. [2023-11-19 07:09:38,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:09:38,572 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-19 07:09:38,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:09:38,575 INFO L225 Difference]: With dead ends: 371 [2023-11-19 07:09:38,575 INFO L226 Difference]: Without dead ends: 370 [2023-11-19 07:09:38,576 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 [2023-11-19 07:09:38,577 INFO L413 NwaCegarLoop]: 484 mSDtfsCounter, 0 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 965 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:09:38,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 965 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:09:38,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2023-11-19 07:09:38,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 368. [2023-11-19 07:09:38,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 289 states have (on average 1.494809688581315) internal successors, (432), 332 states have internal predecessors, (432), 31 states have call successors, (31), 11 states have call predecessors, (31), 10 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-19 07:09:38,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 488 transitions. [2023-11-19 07:09:38,620 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 488 transitions. Word has length 8 [2023-11-19 07:09:38,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:09:38,620 INFO L495 AbstractCegarLoop]: Abstraction has 368 states and 488 transitions. [2023-11-19 07:09:38,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:09:38,621 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 488 transitions. [2023-11-19 07:09:38,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 07:09:38,621 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:09:38,621 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:09:38,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:09:38,622 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-19 07:09:38,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:09:38,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1435990176, now seen corresponding path program 1 times [2023-11-19 07:09:38,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:09:38,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947066696] [2023-11-19 07:09:38,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:38,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:09:38,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:38,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-19 07:09:38,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:38,781 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:09:38,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:09:38,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947066696] [2023-11-19 07:09:38,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947066696] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:09:38,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129504306] [2023-11-19 07:09:38,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:38,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:09:38,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:09:38,784 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:09:38,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:09:39,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:39,053 INFO L262 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:09:39,055 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:09:39,085 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:09:39,085 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:09:39,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1129504306] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:09:39,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:09:39,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-19 07:09:39,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648467789] [2023-11-19 07:09:39,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:09:39,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:09:39,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:09:39,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:09:39,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:09:39,088 INFO L87 Difference]: Start difference. First operand 368 states and 488 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (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) [2023-11-19 07:09:39,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:09:39,134 INFO L93 Difference]: Finished difference Result 368 states and 488 transitions. [2023-11-19 07:09:39,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:09:39,135 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (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 13 [2023-11-19 07:09:39,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:09:39,139 INFO L225 Difference]: With dead ends: 368 [2023-11-19 07:09:39,139 INFO L226 Difference]: Without dead ends: 366 [2023-11-19 07:09:39,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:09:39,142 INFO L413 NwaCegarLoop]: 475 mSDtfsCounter, 217 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 729 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:09:39,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 729 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:09:39,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2023-11-19 07:09:39,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2023-11-19 07:09:39,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 289 states have (on average 1.4878892733564013) internal successors, (430), 330 states have internal predecessors, (430), 31 states have call successors, (31), 11 states have call predecessors, (31), 10 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-19 07:09:39,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 486 transitions. [2023-11-19 07:09:39,169 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 486 transitions. Word has length 13 [2023-11-19 07:09:39,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:09:39,170 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 486 transitions. [2023-11-19 07:09:39,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (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) [2023-11-19 07:09:39,171 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 486 transitions. [2023-11-19 07:09:39,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 07:09:39,171 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:09:39,172 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:09:39,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:09:39,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:09:39,388 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-19 07:09:39,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:09:39,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1566022997, now seen corresponding path program 1 times [2023-11-19 07:09:39,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:09:39,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935114198] [2023-11-19 07:09:39,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:39,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:09:39,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:39,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-19 07:09:39,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:39,584 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:09:39,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:09:39,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935114198] [2023-11-19 07:09:39,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935114198] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:09:39,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622321447] [2023-11-19 07:09:39,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:39,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:09:39,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:09:39,587 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:09:39,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:09:39,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:39,877 INFO L262 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:09:39,878 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:09:39,893 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:09:39,894 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:09:39,927 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:09:39,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [622321447] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:09:39,928 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:09:39,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-19 07:09:39,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405544498] [2023-11-19 07:09:39,929 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:09:39,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:09:39,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:09:39,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:09:39,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:09:39,931 INFO L87 Difference]: Start difference. First operand 366 states and 486 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 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) [2023-11-19 07:09:40,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:09:40,001 INFO L93 Difference]: Finished difference Result 735 states and 977 transitions. [2023-11-19 07:09:40,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:09:40,002 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 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 14 [2023-11-19 07:09:40,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:09:40,008 INFO L225 Difference]: With dead ends: 735 [2023-11-19 07:09:40,008 INFO L226 Difference]: Without dead ends: 375 [2023-11-19 07:09:40,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:09:40,012 INFO L413 NwaCegarLoop]: 482 mSDtfsCounter, 4 mSDsluCounter, 958 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1440 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:09:40,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1440 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:09:40,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2023-11-19 07:09:40,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2023-11-19 07:09:40,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 298 states have (on average 1.4731543624161074) internal successors, (439), 339 states have internal predecessors, (439), 31 states have call successors, (31), 11 states have call predecessors, (31), 10 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-19 07:09:40,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 495 transitions. [2023-11-19 07:09:40,031 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 495 transitions. Word has length 14 [2023-11-19 07:09:40,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:09:40,031 INFO L495 AbstractCegarLoop]: Abstraction has 375 states and 495 transitions. [2023-11-19 07:09:40,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 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) [2023-11-19 07:09:40,032 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 495 transitions. [2023-11-19 07:09:40,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-19 07:09:40,032 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:09:40,033 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:09:40,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:09:40,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:09:40,255 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-19 07:09:40,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:09:40,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1182648026, now seen corresponding path program 2 times [2023-11-19 07:09:40,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:09:40,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19574148] [2023-11-19 07:09:40,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:40,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:09:40,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:40,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:09:40,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:40,559 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:09:40,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:09:40,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19574148] [2023-11-19 07:09:40,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19574148] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:09:40,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367013998] [2023-11-19 07:09:40,560 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:09:40,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:09:40,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:09:40,561 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:09:40,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 07:09:40,860 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-19 07:09:40,860 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:09:40,862 INFO L262 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:09:40,864 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:09:40,908 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-19 07:09:40,908 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:09:40,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367013998] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:09:40,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:09:40,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2023-11-19 07:09:40,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325701749] [2023-11-19 07:09:40,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:09:40,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:09:40,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:09:40,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:09:40,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:09:40,911 INFO L87 Difference]: Start difference. First operand 375 states and 495 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 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) [2023-11-19 07:09:41,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:09:41,011 INFO L93 Difference]: Finished difference Result 375 states and 495 transitions. [2023-11-19 07:09:41,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:09:41,012 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 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 23 [2023-11-19 07:09:41,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:09:41,015 INFO L225 Difference]: With dead ends: 375 [2023-11-19 07:09:41,015 INFO L226 Difference]: Without dead ends: 373 [2023-11-19 07:09:41,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:09:41,017 INFO L413 NwaCegarLoop]: 470 mSDtfsCounter, 216 mSDsluCounter, 1178 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 1648 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:09:41,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 1648 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:09:41,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2023-11-19 07:09:41,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 373. [2023-11-19 07:09:41,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 298 states have (on average 1.4664429530201342) internal successors, (437), 337 states have internal predecessors, (437), 31 states have call successors, (31), 11 states have call predecessors, (31), 10 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-19 07:09:41,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 493 transitions. [2023-11-19 07:09:41,036 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 493 transitions. Word has length 23 [2023-11-19 07:09:41,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:09:41,036 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 493 transitions. [2023-11-19 07:09:41,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 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) [2023-11-19 07:09:41,037 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 493 transitions. [2023-11-19 07:09:41,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-19 07:09:41,038 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:09:41,038 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:09:41,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:09:41,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:09:41,264 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-19 07:09:41,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:09:41,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1345587672, now seen corresponding path program 1 times [2023-11-19 07:09:41,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:09:41,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551033567] [2023-11-19 07:09:41,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:41,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:09:41,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:41,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:09:41,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:41,509 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-19 07:09:41,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:09:41,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551033567] [2023-11-19 07:09:41,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551033567] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:09:41,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:09:41,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:09:41,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891776777] [2023-11-19 07:09:41,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:09:41,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:09:41,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:09:41,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:09:41,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:09:41,515 INFO L87 Difference]: Start difference. First operand 373 states and 493 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-11-19 07:09:41,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:09:41,566 INFO L93 Difference]: Finished difference Result 728 states and 969 transitions. [2023-11-19 07:09:41,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:09:41,567 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 28 [2023-11-19 07:09:41,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:09:41,570 INFO L225 Difference]: With dead ends: 728 [2023-11-19 07:09:41,570 INFO L226 Difference]: Without dead ends: 376 [2023-11-19 07:09:41,572 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 [2023-11-19 07:09:41,573 INFO L413 NwaCegarLoop]: 480 mSDtfsCounter, 1 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:09:41,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 954 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:09:41,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2023-11-19 07:09:41,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 376. [2023-11-19 07:09:41,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 301 states have (on average 1.4617940199335548) internal successors, (440), 340 states have internal predecessors, (440), 31 states have call successors, (31), 11 states have call predecessors, (31), 10 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-19 07:09:41,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 496 transitions. [2023-11-19 07:09:41,599 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 496 transitions. Word has length 28 [2023-11-19 07:09:41,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:09:41,600 INFO L495 AbstractCegarLoop]: Abstraction has 376 states and 496 transitions. [2023-11-19 07:09:41,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-11-19 07:09:41,600 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 496 transitions. [2023-11-19 07:09:41,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-19 07:09:41,602 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:09:41,602 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, 1] [2023-11-19 07:09:41,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:09:41,603 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-19 07:09:41,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:09:41,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1472040823, now seen corresponding path program 1 times [2023-11-19 07:09:41,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:09:41,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357755605] [2023-11-19 07:09:41,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:41,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:09:41,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:41,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:09:41,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:41,860 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-19 07:09:41,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:09:41,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357755605] [2023-11-19 07:09:41,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357755605] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:09:41,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [630772336] [2023-11-19 07:09:41,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:41,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:09:41,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:09:41,862 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:09:41,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 07:09:42,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:42,217 INFO L262 TraceCheckSpWp]: Trace formula consists of 578 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:09:42,220 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:09:42,294 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:09:42,294 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:09:42,403 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:09:42,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [630772336] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:09:42,404 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:09:42,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2023-11-19 07:09:42,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414311841] [2023-11-19 07:09:42,404 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:09:42,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-19 07:09:42,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:09:42,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-19 07:09:42,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-19 07:09:42,406 INFO L87 Difference]: Start difference. First operand 376 states and 496 transitions. Second operand has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 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) [2023-11-19 07:09:42,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:09:42,550 INFO L93 Difference]: Finished difference Result 754 states and 1000 transitions. [2023-11-19 07:09:42,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-19 07:09:42,551 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 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 31 [2023-11-19 07:09:42,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:09:42,554 INFO L225 Difference]: With dead ends: 754 [2023-11-19 07:09:42,554 INFO L226 Difference]: Without dead ends: 393 [2023-11-19 07:09:42,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-19 07:09:42,556 INFO L413 NwaCegarLoop]: 474 mSDtfsCounter, 7 mSDsluCounter, 1884 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2358 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:09:42,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2358 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:09:42,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2023-11-19 07:09:42,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2023-11-19 07:09:42,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 319 states have (on average 1.432601880877743) internal successors, (457), 357 states have internal predecessors, (457), 31 states have call successors, (31), 11 states have call predecessors, (31), 10 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-19 07:09:42,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 513 transitions. [2023-11-19 07:09:42,577 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 513 transitions. Word has length 31 [2023-11-19 07:09:42,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:09:42,577 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 513 transitions. [2023-11-19 07:09:42,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 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) [2023-11-19 07:09:42,577 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 513 transitions. [2023-11-19 07:09:42,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-19 07:09:42,579 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:09:42,579 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] [2023-11-19 07:09:42,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:09:42,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-19 07:09:42,796 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-19 07:09:42,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:09:42,796 INFO L85 PathProgramCache]: Analyzing trace with hash -725657212, now seen corresponding path program 1 times [2023-11-19 07:09:42,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:09:42,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953898240] [2023-11-19 07:09:42,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:42,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:09:42,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:43,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:09:43,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:43,033 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-19 07:09:43,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:09:43,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953898240] [2023-11-19 07:09:43,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953898240] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:09:43,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:09:43,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:09:43,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704653591] [2023-11-19 07:09:43,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:09:43,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:09:43,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:09:43,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:09:43,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:09:43,035 INFO L87 Difference]: Start difference. First operand 393 states and 513 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-19 07:09:43,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:09:43,084 INFO L93 Difference]: Finished difference Result 407 states and 529 transitions. [2023-11-19 07:09:43,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:09:43,084 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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 50 [2023-11-19 07:09:43,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:09:43,087 INFO L225 Difference]: With dead ends: 407 [2023-11-19 07:09:43,087 INFO L226 Difference]: Without dead ends: 405 [2023-11-19 07:09:43,088 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 [2023-11-19 07:09:43,088 INFO L413 NwaCegarLoop]: 477 mSDtfsCounter, 3 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 949 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:09:43,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 949 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:09:43,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2023-11-19 07:09:43,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 403. [2023-11-19 07:09:43,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 329 states have (on average 1.4285714285714286) internal successors, (470), 367 states have internal predecessors, (470), 31 states have call successors, (31), 11 states have call predecessors, (31), 10 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-19 07:09:43,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 526 transitions. [2023-11-19 07:09:43,110 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 526 transitions. Word has length 50 [2023-11-19 07:09:43,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:09:43,110 INFO L495 AbstractCegarLoop]: Abstraction has 403 states and 526 transitions. [2023-11-19 07:09:43,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-19 07:09:43,110 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 526 transitions. [2023-11-19 07:09:43,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-19 07:09:43,111 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:09:43,112 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] [2023-11-19 07:09:43,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 07:09:43,112 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-19 07:09:43,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:09:43,112 INFO L85 PathProgramCache]: Analyzing trace with hash -725655483, now seen corresponding path program 1 times [2023-11-19 07:09:43,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:09:43,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290397556] [2023-11-19 07:09:43,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:43,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:09:43,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:43,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:09:43,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:43,321 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-19 07:09:43,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:09:43,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290397556] [2023-11-19 07:09:43,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290397556] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:09:43,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:09:43,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:09:43,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280273377] [2023-11-19 07:09:43,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:09:43,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:09:43,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:09:43,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:09:43,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:09:43,325 INFO L87 Difference]: Start difference. First operand 403 states and 526 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-19 07:09:43,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:09:43,357 INFO L93 Difference]: Finished difference Result 403 states and 526 transitions. [2023-11-19 07:09:43,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:09:43,358 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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 50 [2023-11-19 07:09:43,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:09:43,361 INFO L225 Difference]: With dead ends: 403 [2023-11-19 07:09:43,361 INFO L226 Difference]: Without dead ends: 402 [2023-11-19 07:09:43,362 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 [2023-11-19 07:09:43,363 INFO L413 NwaCegarLoop]: 478 mSDtfsCounter, 0 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:09:43,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 952 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:09:43,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2023-11-19 07:09:43,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 398. [2023-11-19 07:09:43,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 325 states have (on average 1.4276923076923076) internal successors, (464), 362 states have internal predecessors, (464), 31 states have call successors, (31), 11 states have call predecessors, (31), 10 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-19 07:09:43,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 520 transitions. [2023-11-19 07:09:43,385 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 520 transitions. Word has length 50 [2023-11-19 07:09:43,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:09:43,387 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 520 transitions. [2023-11-19 07:09:43,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-19 07:09:43,387 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 520 transitions. [2023-11-19 07:09:43,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-19 07:09:43,391 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:09:43,391 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] [2023-11-19 07:09:43,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 07:09:43,392 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-19 07:09:43,392 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:09:43,392 INFO L85 PathProgramCache]: Analyzing trace with hash -871508503, now seen corresponding path program 1 times [2023-11-19 07:09:43,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:09:43,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492607300] [2023-11-19 07:09:43,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:43,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:09:43,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:43,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:09:43,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:43,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-19 07:09:43,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:43,779 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-19 07:09:43,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:09:43,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492607300] [2023-11-19 07:09:43,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492607300] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:09:43,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:09:43,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:09:43,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532547257] [2023-11-19 07:09:43,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:09:43,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:09:43,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:09:43,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:09:43,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:09:43,784 INFO L87 Difference]: Start difference. First operand 398 states and 520 transitions. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:09:45,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:09:45,084 INFO L93 Difference]: Finished difference Result 1111 states and 1486 transitions. [2023-11-19 07:09:45,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:09:45,088 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2023-11-19 07:09:45,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:09:45,095 INFO L225 Difference]: With dead ends: 1111 [2023-11-19 07:09:45,095 INFO L226 Difference]: Without dead ends: 776 [2023-11-19 07:09:45,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:09:45,098 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 896 mSDsluCounter, 952 mSDsCounter, 0 mSdLazyCounter, 808 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 919 SdHoareTripleChecker+Valid, 1225 SdHoareTripleChecker+Invalid, 912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:09:45,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [919 Valid, 1225 Invalid, 912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 808 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-19 07:09:45,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2023-11-19 07:09:45,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 730. [2023-11-19 07:09:45,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 614 states have (on average 1.4527687296416938) internal successors, (892), 659 states have internal predecessors, (892), 62 states have call successors, (62), 22 states have call predecessors, (62), 22 states have return successors, (53), 50 states have call predecessors, (53), 50 states have call successors, (53) [2023-11-19 07:09:45,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 1007 transitions. [2023-11-19 07:09:45,166 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 1007 transitions. Word has length 57 [2023-11-19 07:09:45,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:09:45,166 INFO L495 AbstractCegarLoop]: Abstraction has 730 states and 1007 transitions. [2023-11-19 07:09:45,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:09:45,167 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 1007 transitions. [2023-11-19 07:09:45,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-19 07:09:45,172 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:09:45,173 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] [2023-11-19 07:09:45,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 07:09:45,173 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-19 07:09:45,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:09:45,174 INFO L85 PathProgramCache]: Analyzing trace with hash -191450133, now seen corresponding path program 1 times [2023-11-19 07:09:45,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:09:45,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677629686] [2023-11-19 07:09:45,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:45,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:09:45,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:45,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:09:45,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:45,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-19 07:09:45,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:45,776 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-19 07:09:45,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:09:45,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677629686] [2023-11-19 07:09:45,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677629686] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:09:45,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:09:45,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:09:45,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113164030] [2023-11-19 07:09:45,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:09:45,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:09:45,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:09:45,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:09:45,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:09:45,778 INFO L87 Difference]: Start difference. First operand 730 states and 1007 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 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) [2023-11-19 07:09:46,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:09:46,879 INFO L93 Difference]: Finished difference Result 1409 states and 1957 transitions. [2023-11-19 07:09:46,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:09:46,880 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 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 57 [2023-11-19 07:09:46,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:09:46,886 INFO L225 Difference]: With dead ends: 1409 [2023-11-19 07:09:46,886 INFO L226 Difference]: Without dead ends: 736 [2023-11-19 07:09:46,888 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 [2023-11-19 07:09:46,889 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 438 mSDsluCounter, 954 mSDsCounter, 0 mSdLazyCounter, 967 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 1212 SdHoareTripleChecker+Invalid, 984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:09:46,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 1212 Invalid, 984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 967 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-19 07:09:46,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2023-11-19 07:09:46,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 730. [2023-11-19 07:09:46,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 614 states have (on average 1.4511400651465798) internal successors, (891), 659 states have internal predecessors, (891), 62 states have call successors, (62), 22 states have call predecessors, (62), 22 states have return successors, (53), 50 states have call predecessors, (53), 50 states have call successors, (53) [2023-11-19 07:09:46,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 1006 transitions. [2023-11-19 07:09:46,934 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 1006 transitions. Word has length 57 [2023-11-19 07:09:46,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:09:46,934 INFO L495 AbstractCegarLoop]: Abstraction has 730 states and 1006 transitions. [2023-11-19 07:09:46,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 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) [2023-11-19 07:09:46,934 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 1006 transitions. [2023-11-19 07:09:46,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 07:09:46,935 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:09:46,935 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, 1] [2023-11-19 07:09:46,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-19 07:09:46,936 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-19 07:09:46,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:09:46,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1821570515, now seen corresponding path program 1 times [2023-11-19 07:09:46,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:09:46,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694083969] [2023-11-19 07:09:46,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:46,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:09:47,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:47,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:09:47,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:47,209 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-19 07:09:47,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:09:47,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694083969] [2023-11-19 07:09:47,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694083969] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:09:47,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [84742854] [2023-11-19 07:09:47,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:47,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:09:47,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:09:47,211 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:09:47,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 07:09:47,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:47,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 749 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:09:47,628 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:09:47,648 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-19 07:09:47,648 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:09:47,678 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-19 07:09:47,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [84742854] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:09:47,678 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:09:47,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-19 07:09:47,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156059621] [2023-11-19 07:09:47,679 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:09:47,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:09:47,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:09:47,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:09:47,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:09:47,681 INFO L87 Difference]: Start difference. First operand 730 states and 1006 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 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) [2023-11-19 07:09:47,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:09:47,755 INFO L93 Difference]: Finished difference Result 1434 states and 1989 transitions. [2023-11-19 07:09:47,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:09:47,756 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 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 58 [2023-11-19 07:09:47,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:09:47,761 INFO L225 Difference]: With dead ends: 1434 [2023-11-19 07:09:47,761 INFO L226 Difference]: Without dead ends: 748 [2023-11-19 07:09:47,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:09:47,764 INFO L413 NwaCegarLoop]: 478 mSDtfsCounter, 4 mSDsluCounter, 948 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1426 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:09:47,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1426 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:09:47,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2023-11-19 07:09:47,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 748. [2023-11-19 07:09:47,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 748 states, 632 states have (on average 1.4382911392405062) internal successors, (909), 677 states have internal predecessors, (909), 62 states have call successors, (62), 22 states have call predecessors, (62), 22 states have return successors, (53), 50 states have call predecessors, (53), 50 states have call successors, (53) [2023-11-19 07:09:47,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 1024 transitions. [2023-11-19 07:09:47,809 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 1024 transitions. Word has length 58 [2023-11-19 07:09:47,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:09:47,810 INFO L495 AbstractCegarLoop]: Abstraction has 748 states and 1024 transitions. [2023-11-19 07:09:47,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 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) [2023-11-19 07:09:47,810 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 1024 transitions. [2023-11-19 07:09:47,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-19 07:09:47,811 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:09:47,811 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:09:47,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:09:48,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-19 07:09:48,034 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-19 07:09:48,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:09:48,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1729101119, now seen corresponding path program 1 times [2023-11-19 07:09:48,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:09:48,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933241574] [2023-11-19 07:09:48,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:48,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:09:48,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:48,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:09:48,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:48,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-19 07:09:48,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:48,495 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-19 07:09:48,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:09:48,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933241574] [2023-11-19 07:09:48,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933241574] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:09:48,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481695793] [2023-11-19 07:09:48,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:48,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:09:48,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:09:48,500 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:09:48,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-19 07:09:48,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:48,952 INFO L262 TraceCheckSpWp]: Trace formula consists of 831 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:09:48,960 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:09:49,001 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-19 07:09:49,002 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:09:49,100 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-19 07:09:49,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481695793] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:09:49,101 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:09:49,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 14 [2023-11-19 07:09:49,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947279302] [2023-11-19 07:09:49,101 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:09:49,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-19 07:09:49,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:09:49,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-19 07:09:49,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2023-11-19 07:09:49,103 INFO L87 Difference]: Start difference. First operand 748 states and 1024 transitions. Second operand has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 13 states have internal predecessors, (68), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:09:50,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:09:50,105 INFO L93 Difference]: Finished difference Result 1485 states and 2046 transitions. [2023-11-19 07:09:50,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-19 07:09:50,106 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 13 states have internal predecessors, (68), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 74 [2023-11-19 07:09:50,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:09:50,111 INFO L225 Difference]: With dead ends: 1485 [2023-11-19 07:09:50,111 INFO L226 Difference]: Without dead ends: 790 [2023-11-19 07:09:50,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2023-11-19 07:09:50,115 INFO L413 NwaCegarLoop]: 267 mSDtfsCounter, 216 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 726 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-19 07:09:50,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 998 Invalid, 745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 726 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-19 07:09:50,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2023-11-19 07:09:50,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 784. [2023-11-19 07:09:50,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 668 states have (on average 1.4146706586826348) internal successors, (945), 713 states have internal predecessors, (945), 62 states have call successors, (62), 22 states have call predecessors, (62), 22 states have return successors, (53), 50 states have call predecessors, (53), 50 states have call successors, (53) [2023-11-19 07:09:50,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1060 transitions. [2023-11-19 07:09:50,169 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1060 transitions. Word has length 74 [2023-11-19 07:09:50,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:09:50,170 INFO L495 AbstractCegarLoop]: Abstraction has 784 states and 1060 transitions. [2023-11-19 07:09:50,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 13 states have internal predecessors, (68), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:09:50,170 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1060 transitions. [2023-11-19 07:09:50,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-19 07:09:50,171 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:09:50,171 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] [2023-11-19 07:09:50,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-19 07:09:50,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-19 07:09:50,394 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-19 07:09:50,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:09:50,395 INFO L85 PathProgramCache]: Analyzing trace with hash 937499617, now seen corresponding path program 2 times [2023-11-19 07:09:50,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:09:50,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109234486] [2023-11-19 07:09:50,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:50,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:09:50,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:51,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:09:51,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:51,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-19 07:09:51,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:51,279 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2023-11-19 07:09:51,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:09:51,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109234486] [2023-11-19 07:09:51,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109234486] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:09:51,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039064207] [2023-11-19 07:09:51,280 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:09:51,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:09:51,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:09:51,282 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:09:51,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-19 07:09:51,698 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-19 07:09:51,699 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:09:51,702 INFO L262 TraceCheckSpWp]: Trace formula consists of 514 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 07:09:51,706 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:09:52,108 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-19 07:09:52,109 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:09:52,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039064207] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:09:52,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:09:52,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 14 [2023-11-19 07:09:52,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137846787] [2023-11-19 07:09:52,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:09:52,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:09:52,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:09:52,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:09:52,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2023-11-19 07:09:52,111 INFO L87 Difference]: Start difference. First operand 784 states and 1060 transitions. Second operand has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 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) [2023-11-19 07:09:54,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:09:54,104 INFO L93 Difference]: Finished difference Result 973 states and 1290 transitions. [2023-11-19 07:09:54,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:09:54,105 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 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 92 [2023-11-19 07:09:54,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:09:54,112 INFO L225 Difference]: With dead ends: 973 [2023-11-19 07:09:54,112 INFO L226 Difference]: Without dead ends: 972 [2023-11-19 07:09:54,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2023-11-19 07:09:54,114 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 1223 mSDsluCounter, 1387 mSDsCounter, 0 mSdLazyCounter, 1534 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1257 SdHoareTripleChecker+Valid, 1632 SdHoareTripleChecker+Invalid, 1650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 1534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:09:54,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1257 Valid, 1632 Invalid, 1650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 1534 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-19 07:09:54,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 972 states. [2023-11-19 07:09:54,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 972 to 825. [2023-11-19 07:09:54,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 825 states, 708 states have (on average 1.42090395480226) internal successors, (1006), 753 states have internal predecessors, (1006), 63 states have call successors, (63), 22 states have call predecessors, (63), 22 states have return successors, (55), 51 states have call predecessors, (55), 51 states have call successors, (55) [2023-11-19 07:09:54,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 1124 transitions. [2023-11-19 07:09:54,168 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 1124 transitions. Word has length 92 [2023-11-19 07:09:54,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:09:54,169 INFO L495 AbstractCegarLoop]: Abstraction has 825 states and 1124 transitions. [2023-11-19 07:09:54,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 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) [2023-11-19 07:09:54,169 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 1124 transitions. [2023-11-19 07:09:54,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-19 07:09:54,170 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:09:54,170 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] [2023-11-19 07:09:54,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-19 07:09:54,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-19 07:09:54,383 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-19 07:09:54,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:09:54,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1002282224, now seen corresponding path program 1 times [2023-11-19 07:09:54,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:09:54,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925144214] [2023-11-19 07:09:54,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:54,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:09:54,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:55,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:09:55,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:55,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-19 07:09:55,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:55,289 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2023-11-19 07:09:55,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:09:55,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925144214] [2023-11-19 07:09:55,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925144214] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:09:55,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1631390409] [2023-11-19 07:09:55,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:55,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:09:55,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:09:55,295 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:09:55,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-19 07:09:55,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:55,831 INFO L262 TraceCheckSpWp]: Trace formula consists of 946 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 07:09:55,835 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:09:56,060 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-19 07:09:56,061 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:09:56,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1631390409] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:09:56,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:09:56,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 12 [2023-11-19 07:09:56,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728814509] [2023-11-19 07:09:56,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:09:56,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:09:56,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:09:56,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:09:56,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:09:56,063 INFO L87 Difference]: Start difference. First operand 825 states and 1124 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 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) [2023-11-19 07:09:57,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:09:57,036 INFO L93 Difference]: Finished difference Result 1423 states and 1958 transitions. [2023-11-19 07:09:57,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:09:57,036 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 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 93 [2023-11-19 07:09:57,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:09:57,041 INFO L225 Difference]: With dead ends: 1423 [2023-11-19 07:09:57,042 INFO L226 Difference]: Without dead ends: 756 [2023-11-19 07:09:57,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2023-11-19 07:09:57,045 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 775 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 775 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-19 07:09:57,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [775 Valid, 517 Invalid, 842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 727 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-19 07:09:57,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2023-11-19 07:09:57,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 756. [2023-11-19 07:09:57,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 756 states, 645 states have (on average 1.4) internal successors, (903), 686 states have internal predecessors, (903), 61 states have call successors, (61), 22 states have call predecessors, (61), 21 states have return successors, (51), 49 states have call predecessors, (51), 49 states have call successors, (51) [2023-11-19 07:09:57,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 1015 transitions. [2023-11-19 07:09:57,091 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 1015 transitions. Word has length 93 [2023-11-19 07:09:57,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:09:57,091 INFO L495 AbstractCegarLoop]: Abstraction has 756 states and 1015 transitions. [2023-11-19 07:09:57,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 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) [2023-11-19 07:09:57,092 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 1015 transitions. [2023-11-19 07:09:57,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-19 07:09:57,093 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:09:57,093 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1] [2023-11-19 07:09:57,114 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-19 07:09:57,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-19 07:09:57,312 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting getoptErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-19 07:09:57,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:09:57,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1324204462, now seen corresponding path program 1 times [2023-11-19 07:09:57,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:09:57,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929079610] [2023-11-19 07:09:57,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:57,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:09:57,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:57,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:09:57,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:57,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-19 07:09:57,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:57,523 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2023-11-19 07:09:57,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:09:57,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929079610] [2023-11-19 07:09:57,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929079610] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:09:57,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:09:57,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:09:57,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812466557] [2023-11-19 07:09:57,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:09:57,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:09:57,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:09:57,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:09:57,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:09:57,526 INFO L87 Difference]: Start difference. First operand 756 states and 1015 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:09:57,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:09:57,573 INFO L93 Difference]: Finished difference Result 1397 states and 1914 transitions. [2023-11-19 07:09:57,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:09:57,573 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 104 [2023-11-19 07:09:57,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:09:57,578 INFO L225 Difference]: With dead ends: 1397 [2023-11-19 07:09:57,578 INFO L226 Difference]: Without dead ends: 758 [2023-11-19 07:09:57,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:09:57,582 INFO L413 NwaCegarLoop]: 476 mSDtfsCounter, 0 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 948 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:09:57,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 948 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:09:57,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2023-11-19 07:09:57,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 758. [2023-11-19 07:09:57,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 758 states, 647 states have (on average 1.3987635239567233) internal successors, (905), 688 states have internal predecessors, (905), 61 states have call successors, (61), 22 states have call predecessors, (61), 21 states have return successors, (51), 49 states have call predecessors, (51), 49 states have call successors, (51) [2023-11-19 07:09:57,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 758 states to 758 states and 1017 transitions. [2023-11-19 07:09:57,629 INFO L78 Accepts]: Start accepts. Automaton has 758 states and 1017 transitions. Word has length 104 [2023-11-19 07:09:57,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:09:57,630 INFO L495 AbstractCegarLoop]: Abstraction has 758 states and 1017 transitions. [2023-11-19 07:09:57,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:09:57,630 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states and 1017 transitions. [2023-11-19 07:09:57,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-19 07:09:57,631 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:09:57,631 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1] [2023-11-19 07:09:57,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-19 07:09:57,632 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting getoptErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-19 07:09:57,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:09:57,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1281819092, now seen corresponding path program 1 times [2023-11-19 07:09:57,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:09:57,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822679204] [2023-11-19 07:09:57,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:57,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:09:57,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:57,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:09:57,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:57,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-19 07:09:57,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:57,878 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2023-11-19 07:09:57,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:09:57,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822679204] [2023-11-19 07:09:57,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822679204] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:09:57,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:09:57,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:09:57,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799315805] [2023-11-19 07:09:57,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:09:57,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:09:57,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:09:57,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:09:57,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:09:57,881 INFO L87 Difference]: Start difference. First operand 758 states and 1017 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:09:57,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:09:57,934 INFO L93 Difference]: Finished difference Result 1402 states and 1920 transitions. [2023-11-19 07:09:57,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:09:57,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 104 [2023-11-19 07:09:57,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:09:57,939 INFO L225 Difference]: With dead ends: 1402 [2023-11-19 07:09:57,940 INFO L226 Difference]: Without dead ends: 761 [2023-11-19 07:09:57,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:09:57,943 INFO L413 NwaCegarLoop]: 476 mSDtfsCounter, 0 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 948 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:09:57,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 948 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:09:57,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2023-11-19 07:09:57,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 761. [2023-11-19 07:09:57,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 761 states, 650 states have (on average 1.396923076923077) internal successors, (908), 691 states have internal predecessors, (908), 61 states have call successors, (61), 22 states have call predecessors, (61), 21 states have return successors, (51), 49 states have call predecessors, (51), 49 states have call successors, (51) [2023-11-19 07:09:57,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 761 states to 761 states and 1020 transitions. [2023-11-19 07:09:57,986 INFO L78 Accepts]: Start accepts. Automaton has 761 states and 1020 transitions. Word has length 104 [2023-11-19 07:09:57,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:09:57,986 INFO L495 AbstractCegarLoop]: Abstraction has 761 states and 1020 transitions. [2023-11-19 07:09:57,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:09:57,987 INFO L276 IsEmpty]: Start isEmpty. Operand 761 states and 1020 transitions. [2023-11-19 07:09:57,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-19 07:09:57,988 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:09:57,988 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1] [2023-11-19 07:09:57,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-19 07:09:57,989 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting getoptErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-19 07:09:57,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:09:57,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1279972050, now seen corresponding path program 1 times [2023-11-19 07:09:57,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:09:57,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82908462] [2023-11-19 07:09:57,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:57,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:09:58,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:58,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:09:58,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:58,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-19 07:09:58,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:58,540 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2023-11-19 07:09:58,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:09:58,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82908462] [2023-11-19 07:09:58,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82908462] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:09:58,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:09:58,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:09:58,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858193353] [2023-11-19 07:09:58,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:09:58,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:09:58,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:09:58,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:09:58,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:09:58,542 INFO L87 Difference]: Start difference. First operand 761 states and 1020 transitions. Second operand has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:09:58,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:09:58,736 INFO L93 Difference]: Finished difference Result 1132 states and 1486 transitions. [2023-11-19 07:09:58,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:09:58,736 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 104 [2023-11-19 07:09:58,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:09:58,743 INFO L225 Difference]: With dead ends: 1132 [2023-11-19 07:09:58,744 INFO L226 Difference]: Without dead ends: 1130 [2023-11-19 07:09:58,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:09:58,745 INFO L413 NwaCegarLoop]: 465 mSDtfsCounter, 874 mSDsluCounter, 820 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 874 SdHoareTripleChecker+Valid, 1285 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:09:58,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [874 Valid, 1285 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:09:58,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1130 states. [2023-11-19 07:09:58,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1130 to 1071. [2023-11-19 07:09:58,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1071 states, 919 states have (on average 1.4167573449401523) internal successors, (1302), 967 states have internal predecessors, (1302), 91 states have call successors, (91), 33 states have call predecessors, (91), 32 states have return successors, (77), 73 states have call predecessors, (77), 73 states have call successors, (77) [2023-11-19 07:09:58,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1470 transitions. [2023-11-19 07:09:58,810 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1470 transitions. Word has length 104 [2023-11-19 07:09:58,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:09:58,810 INFO L495 AbstractCegarLoop]: Abstraction has 1071 states and 1470 transitions. [2023-11-19 07:09:58,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:09:58,811 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1470 transitions. [2023-11-19 07:09:58,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-19 07:09:58,812 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:09:58,812 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] [2023-11-19 07:09:58,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-19 07:09:58,813 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-19 07:09:58,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:09:58,814 INFO L85 PathProgramCache]: Analyzing trace with hash -172835236, now seen corresponding path program 1 times [2023-11-19 07:09:58,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:09:58,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855168550] [2023-11-19 07:09:58,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:58,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:09:58,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:59,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:09:59,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:59,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-19 07:09:59,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:59,209 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-19 07:09:59,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:09:59,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855168550] [2023-11-19 07:09:59,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855168550] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:09:59,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:09:59,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:09:59,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926593500] [2023-11-19 07:09:59,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:09:59,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:09:59,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:09:59,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:09:59,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:09:59,212 INFO L87 Difference]: Start difference. First operand 1071 states and 1470 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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) [2023-11-19 07:10:00,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:10:00,490 INFO L93 Difference]: Finished difference Result 1103 states and 1512 transitions. [2023-11-19 07:10:00,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:10:00,490 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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 104 [2023-11-19 07:10:00,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:10:00,497 INFO L225 Difference]: With dead ends: 1103 [2023-11-19 07:10:00,498 INFO L226 Difference]: Without dead ends: 1101 [2023-11-19 07:10:00,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:10:00,499 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 218 mSDsluCounter, 883 mSDsCounter, 0 mSdLazyCounter, 1006 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 1144 SdHoareTripleChecker+Invalid, 1022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:10:00,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 1144 Invalid, 1022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1006 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-19 07:10:00,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1101 states. [2023-11-19 07:10:00,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1101 to 1083. [2023-11-19 07:10:00,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 931 states have (on average 1.414607948442535) internal successors, (1317), 979 states have internal predecessors, (1317), 91 states have call successors, (91), 33 states have call predecessors, (91), 32 states have return successors, (77), 73 states have call predecessors, (77), 73 states have call successors, (77) [2023-11-19 07:10:00,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1485 transitions. [2023-11-19 07:10:00,581 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1485 transitions. Word has length 104 [2023-11-19 07:10:00,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:10:00,581 INFO L495 AbstractCegarLoop]: Abstraction has 1083 states and 1485 transitions. [2023-11-19 07:10:00,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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) [2023-11-19 07:10:00,582 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1485 transitions. [2023-11-19 07:10:00,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-19 07:10:00,583 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:10:00,584 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] [2023-11-19 07:10:00,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-19 07:10:00,584 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-19 07:10:00,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:10:00,585 INFO L85 PathProgramCache]: Analyzing trace with hash -172775654, now seen corresponding path program 1 times [2023-11-19 07:10:00,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:10:00,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263949820] [2023-11-19 07:10:00,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:10:00,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:10:00,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:10:00,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:10:00,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:10:00,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-19 07:10:00,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:10:00,947 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-19 07:10:00,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:10:00,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263949820] [2023-11-19 07:10:00,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263949820] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:10:00,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:10:00,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:10:00,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594064752] [2023-11-19 07:10:00,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:10:00,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:10:00,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:10:00,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:10:00,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:10:00,950 INFO L87 Difference]: Start difference. First operand 1083 states and 1485 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:10:02,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:10:02,010 INFO L93 Difference]: Finished difference Result 2361 states and 3294 transitions. [2023-11-19 07:10:02,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:10:02,010 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 104 [2023-11-19 07:10:02,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:10:02,019 INFO L225 Difference]: With dead ends: 2361 [2023-11-19 07:10:02,019 INFO L226 Difference]: Without dead ends: 1395 [2023-11-19 07:10:02,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:10:02,025 INFO L413 NwaCegarLoop]: 267 mSDtfsCounter, 334 mSDsluCounter, 970 mSDsCounter, 0 mSdLazyCounter, 918 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 1237 SdHoareTripleChecker+Invalid, 945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-19 07:10:02,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 1237 Invalid, 945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 918 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-19 07:10:02,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1395 states. [2023-11-19 07:10:02,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1395 to 1095. [2023-11-19 07:10:02,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1095 states, 940 states have (on average 1.4106382978723404) internal successors, (1326), 988 states have internal predecessors, (1326), 91 states have call successors, (91), 33 states have call predecessors, (91), 35 states have return successors, (80), 76 states have call predecessors, (80), 73 states have call successors, (80) [2023-11-19 07:10:02,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1095 states to 1095 states and 1497 transitions. [2023-11-19 07:10:02,141 INFO L78 Accepts]: Start accepts. Automaton has 1095 states and 1497 transitions. Word has length 104 [2023-11-19 07:10:02,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:10:02,141 INFO L495 AbstractCegarLoop]: Abstraction has 1095 states and 1497 transitions. [2023-11-19 07:10:02,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:10:02,142 INFO L276 IsEmpty]: Start isEmpty. Operand 1095 states and 1497 transitions. [2023-11-19 07:10:02,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-19 07:10:02,143 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:10:02,143 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:10:02,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-19 07:10:02,144 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-19 07:10:02,144 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:10:02,144 INFO L85 PathProgramCache]: Analyzing trace with hash -359715105, now seen corresponding path program 1 times [2023-11-19 07:10:02,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:10:02,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969673693] [2023-11-19 07:10:02,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:10:02,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:10:02,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:10:02,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:10:02,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:10:02,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-19 07:10:02,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:10:02,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:10:02,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:10:02,480 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2023-11-19 07:10:02,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:10:02,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969673693] [2023-11-19 07:10:02,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969673693] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:10:02,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:10:02,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:10:02,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769086771] [2023-11-19 07:10:02,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:10:02,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:10:02,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:10:02,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:10:02,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:10:02,483 INFO L87 Difference]: Start difference. First operand 1095 states and 1497 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:10:03,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:10:03,365 INFO L93 Difference]: Finished difference Result 2100 states and 2906 transitions. [2023-11-19 07:10:03,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:10:03,366 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 107 [2023-11-19 07:10:03,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:10:03,373 INFO L225 Difference]: With dead ends: 2100 [2023-11-19 07:10:03,373 INFO L226 Difference]: Without dead ends: 1122 [2023-11-19 07:10:03,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:10:03,377 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 226 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 982 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:10:03,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 982 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-19 07:10:03,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1122 states. [2023-11-19 07:10:03,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1122 to 1101. [2023-11-19 07:10:03,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1101 states, 946 states have (on average 1.4080338266384778) internal successors, (1332), 994 states have internal predecessors, (1332), 91 states have call successors, (91), 33 states have call predecessors, (91), 35 states have return successors, (80), 76 states have call predecessors, (80), 73 states have call successors, (80) [2023-11-19 07:10:03,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1101 states to 1101 states and 1503 transitions. [2023-11-19 07:10:03,445 INFO L78 Accepts]: Start accepts. Automaton has 1101 states and 1503 transitions. Word has length 107 [2023-11-19 07:10:03,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:10:03,445 INFO L495 AbstractCegarLoop]: Abstraction has 1101 states and 1503 transitions. [2023-11-19 07:10:03,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:10:03,446 INFO L276 IsEmpty]: Start isEmpty. Operand 1101 states and 1503 transitions. [2023-11-19 07:10:03,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-19 07:10:03,447 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:10:03,448 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:10:03,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-19 07:10:03,448 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-19 07:10:03,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:10:03,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1764183260, now seen corresponding path program 1 times [2023-11-19 07:10:03,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:10:03,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064691418] [2023-11-19 07:10:03,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:10:03,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:10:03,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:10:04,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:10:04,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:10:04,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-19 07:10:04,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:10:04,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:10:04,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:10:04,345 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2023-11-19 07:10:04,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:10:04,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064691418] [2023-11-19 07:10:04,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064691418] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:10:04,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [778509211] [2023-11-19 07:10:04,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:10:04,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:10:04,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:10:04,347 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:10:04,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-19 07:10:05,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:10:05,010 INFO L262 TraceCheckSpWp]: Trace formula consists of 981 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-19 07:10:05,015 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:10:05,381 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2023-11-19 07:10:05,381 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:10:05,702 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2023-11-19 07:10:05,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [778509211] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:10:05,702 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:10:05,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 26 [2023-11-19 07:10:05,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780598423] [2023-11-19 07:10:05,703 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:10:05,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-19 07:10:05,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:10:05,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-19 07:10:05,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=556, Unknown=0, NotChecked=0, Total=650 [2023-11-19 07:10:05,705 INFO L87 Difference]: Start difference. First operand 1101 states and 1503 transitions. Second operand has 26 states, 26 states have (on average 3.730769230769231) internal successors, (97), 23 states have internal predecessors, (97), 7 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-19 07:10:09,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:10:09,693 INFO L93 Difference]: Finished difference Result 2339 states and 3197 transitions. [2023-11-19 07:10:09,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-11-19 07:10:09,694 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.730769230769231) internal successors, (97), 23 states have internal predecessors, (97), 7 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) Word has length 107 [2023-11-19 07:10:09,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:10:09,703 INFO L225 Difference]: With dead ends: 2339 [2023-11-19 07:10:09,703 INFO L226 Difference]: Without dead ends: 1354 [2023-11-19 07:10:09,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 202 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 606 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=351, Invalid=1905, Unknown=0, NotChecked=0, Total=2256 [2023-11-19 07:10:09,709 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 2643 mSDsluCounter, 2813 mSDsCounter, 0 mSdLazyCounter, 3578 mSolverCounterSat, 330 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2653 SdHoareTripleChecker+Valid, 3053 SdHoareTripleChecker+Invalid, 3908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 330 IncrementalHoareTripleChecker+Valid, 3578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:10:09,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2653 Valid, 3053 Invalid, 3908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [330 Valid, 3578 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-11-19 07:10:09,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1354 states. [2023-11-19 07:10:09,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1354 to 1201. [2023-11-19 07:10:09,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1201 states, 1041 states have (on average 1.3967339097022093) internal successors, (1454), 1092 states have internal predecessors, (1454), 93 states have call successors, (93), 33 states have call predecessors, (93), 38 states have return successors, (90), 78 states have call predecessors, (90), 75 states have call successors, (90) [2023-11-19 07:10:09,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1201 states to 1201 states and 1637 transitions. [2023-11-19 07:10:09,811 INFO L78 Accepts]: Start accepts. Automaton has 1201 states and 1637 transitions. Word has length 107 [2023-11-19 07:10:09,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:10:09,812 INFO L495 AbstractCegarLoop]: Abstraction has 1201 states and 1637 transitions. [2023-11-19 07:10:09,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.730769230769231) internal successors, (97), 23 states have internal predecessors, (97), 7 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-19 07:10:09,813 INFO L276 IsEmpty]: Start isEmpty. Operand 1201 states and 1637 transitions. [2023-11-19 07:10:09,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-19 07:10:09,815 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:10:09,815 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, 1] [2023-11-19 07:10:09,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-19 07:10:10,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef6d875-898a-4ddc-ae66-834cdd5c4019/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:10:10,031 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-19 07:10:10,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:10:10,032 INFO L85 PathProgramCache]: Analyzing trace with hash -608247351, now seen corresponding path program 1 times [2023-11-19 07:10:10,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:10:10,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960576363] [2023-11-19 07:10:10,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:10:10,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:10:10,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:10:10,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:10:10,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:10:10,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-19 07:10:10,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:10:10,292 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-19 07:10:10,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:10:10,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960576363] [2023-11-19 07:10:10,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960576363] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:10:10,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:10:10,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:10:10,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354376205] [2023-11-19 07:10:10,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:10:10,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:10:10,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:10:10,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:10:10,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:10:10,294 INFO L87 Difference]: Start difference. First operand 1201 states and 1637 transitions. Second operand has 4 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2023-11-19 07:10:10,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:10:10,980 INFO L93 Difference]: Finished difference Result 1215 states and 1652 transitions. [2023-11-19 07:10:10,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:10:10,981 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 109 [2023-11-19 07:10:10,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:10:10,991 INFO L225 Difference]: With dead ends: 1215 [2023-11-19 07:10:10,991 INFO L226 Difference]: Without dead ends: 1213 [2023-11-19 07:10:10,992 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 [2023-11-19 07:10:10,993 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 212 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:10:10,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 732 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 07:10:10,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1213 states. [2023-11-19 07:10:11,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1213 to 1204. [2023-11-19 07:10:11,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1204 states, 1044 states have (on average 1.3955938697318007) internal successors, (1457), 1095 states have internal predecessors, (1457), 93 states have call successors, (93), 33 states have call predecessors, (93), 38 states have return successors, (90), 78 states have call predecessors, (90), 75 states have call successors, (90) [2023-11-19 07:10:11,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1204 states to 1204 states and 1640 transitions. [2023-11-19 07:10:11,065 INFO L78 Accepts]: Start accepts. Automaton has 1204 states and 1640 transitions. Word has length 109 [2023-11-19 07:10:11,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:10:11,065 INFO L495 AbstractCegarLoop]: Abstraction has 1204 states and 1640 transitions. [2023-11-19 07:10:11,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2023-11-19 07:10:11,066 INFO L276 IsEmpty]: Start isEmpty. Operand 1204 states and 1640 transitions. [2023-11-19 07:10:11,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-19 07:10:11,067 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:10:11,067 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, 1, 1, 1] [2023-11-19 07:10:11,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-19 07:10:11,068 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-19 07:10:11,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:10:11,068 INFO L85 PathProgramCache]: Analyzing trace with hash -2036601272, now seen corresponding path program 1 times [2023-11-19 07:10:11,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:10:11,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970516025] [2023-11-19 07:10:11,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:10:11,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:10:11,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:10:11,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:10:11,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:10:11,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-19 07:10:11,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:10:11,455 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-19 07:10:11,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:10:11,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970516025] [2023-11-19 07:10:11,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970516025] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:10:11,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:10:11,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:10:11,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440026027] [2023-11-19 07:10:11,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:10:11,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:10:11,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:10:11,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:10:11,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:10:11,458 INFO L87 Difference]: Start difference. First operand 1204 states and 1640 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:10:12,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:10:12,621 INFO L93 Difference]: Finished difference Result 2178 states and 3028 transitions. [2023-11-19 07:10:12,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:10:12,621 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 111 [2023-11-19 07:10:12,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:10:12,630 INFO L225 Difference]: With dead ends: 2178 [2023-11-19 07:10:12,630 INFO L226 Difference]: Without dead ends: 1470 [2023-11-19 07:10:12,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:10:12,634 INFO L413 NwaCegarLoop]: 267 mSDtfsCounter, 552 mSDsluCounter, 987 mSDsCounter, 0 mSdLazyCounter, 894 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 566 SdHoareTripleChecker+Valid, 1254 SdHoareTripleChecker+Invalid, 937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:10:12,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [566 Valid, 1254 Invalid, 937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 894 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-19 07:10:12,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1470 states. [2023-11-19 07:10:12,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1470 to 1441. [2023-11-19 07:10:12,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1441 states, 1257 states have (on average 1.4311853619729515) internal successors, (1799), 1308 states have internal predecessors, (1799), 114 states have call successors, (114), 36 states have call predecessors, (114), 41 states have return successors, (111), 99 states have call predecessors, (111), 96 states have call successors, (111) [2023-11-19 07:10:12,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1441 states to 1441 states and 2024 transitions. [2023-11-19 07:10:12,724 INFO L78 Accepts]: Start accepts. Automaton has 1441 states and 2024 transitions. Word has length 111 [2023-11-19 07:10:12,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:10:12,725 INFO L495 AbstractCegarLoop]: Abstraction has 1441 states and 2024 transitions. [2023-11-19 07:10:12,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:10:12,725 INFO L276 IsEmpty]: Start isEmpty. Operand 1441 states and 2024 transitions. [2023-11-19 07:10:12,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-19 07:10:12,727 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:10:12,727 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, 1, 1, 1] [2023-11-19 07:10:12,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-19 07:10:12,727 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [getoptErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, getoptErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-19 07:10:12,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:10:12,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1356542902, now seen corresponding path program 1 times [2023-11-19 07:10:12,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:10:12,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786122518] [2023-11-19 07:10:12,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:10:12,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:10:12,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:10:13,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:10:13,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:10:13,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-19 07:10:13,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:10:13,238 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-19 07:10:13,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:10:13,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786122518] [2023-11-19 07:10:13,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786122518] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:10:13,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:10:13,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:10:13,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086925658] [2023-11-19 07:10:13,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:10:13,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:10:13,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:10:13,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:10:13,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:10:13,242 INFO L87 Difference]: Start difference. First operand 1441 states and 2024 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)