./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/busybox-1.22.0/uniq-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/uniq-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 12c779c027471bf15192285c26a96841dcf1579b21a71f6313a877ba4e2f7c7d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:44:52,172 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:44:52,259 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-26 11:44:52,265 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:44:52,266 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:44:52,297 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:44:52,298 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:44:52,299 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:44:52,300 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:44:52,301 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:44:52,301 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:44:52,302 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:44:52,303 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:44:52,304 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:44:52,305 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:44:52,306 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:44:52,306 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:44:52,307 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:44:52,308 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:44:52,308 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:44:52,309 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:44:52,310 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:44:52,311 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 11:44:52,311 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:44:52,312 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:44:52,313 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:44:52,313 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:44:52,314 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:44:52,315 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:44:52,315 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:44:52,316 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:44:52,317 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:44:52,317 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:44:52,318 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:44:52,319 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:44:52,319 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:44:52,320 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:44:52,321 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:44:52,322 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:44:52,322 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:44:52,323 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:44:52,324 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_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12c779c027471bf15192285c26a96841dcf1579b21a71f6313a877ba4e2f7c7d [2023-11-26 11:44:52,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:44:52,698 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:44:52,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:44:52,703 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:44:52,704 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:44:52,706 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/busybox-1.22.0/uniq-1.i [2023-11-26 11:44:55,887 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:44:56,483 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:44:56,484 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/sv-benchmarks/c/busybox-1.22.0/uniq-1.i [2023-11-26 11:44:56,532 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/data/80d2a712b/be72b80272544db3b11cb97b842c14d0/FLAG27d3991eb [2023-11-26 11:44:56,555 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/data/80d2a712b/be72b80272544db3b11cb97b842c14d0 [2023-11-26 11:44:56,565 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:44:56,568 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:44:56,572 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:44:56,572 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:44:56,579 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:44:56,580 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:44:56" (1/1) ... [2023-11-26 11:44:56,581 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@675e1be1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:56, skipping insertion in model container [2023-11-26 11:44:56,581 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:44:56" (1/1) ... [2023-11-26 11:44:56,706 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:44:58,387 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:44:58,428 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:44:58,684 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:44:58,989 WARN L675 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:44:58,989 WARN L675 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:44:58,989 WARN L675 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:44:58,989 WARN L675 CHandler]: The function ferror is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:44:58,990 WARN L675 CHandler]: The function strtoul is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:44:58,990 WARN L675 CHandler]: The function close is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:44:58,990 WARN L675 CHandler]: The function fgetc is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:44:58,996 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:44:58,996 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:58 WrapperNode [2023-11-26 11:44:58,997 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:44:58,998 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:44:58,998 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:44:58,998 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:44:59,006 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:58" (1/1) ... [2023-11-26 11:44:59,080 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:58" (1/1) ... [2023-11-26 11:44:59,230 INFO L138 Inliner]: procedures = 600, calls = 440, calls flagged for inlining = 31, calls inlined = 30, statements flattened = 1906 [2023-11-26 11:44:59,231 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:44:59,234 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:44:59,234 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:44:59,235 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:44:59,249 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:58" (1/1) ... [2023-11-26 11:44:59,250 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:58" (1/1) ... [2023-11-26 11:44:59,269 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:58" (1/1) ... [2023-11-26 11:44:59,439 INFO L175 MemorySlicer]: Split 292 memory accesses to 21 slices as follows [2, 11, 6, 33, 3, 54, 2, 17, 29, 14, 3, 16, 17, 1, 1, 3, 3, 20, 44, 7, 6]. 18 percent of accesses are in the largest equivalence class. The 43 initializations are split as follows [2, 0, 0, 0, 3, 17, 0, 0, 0, 1, 0, 16, 4, 0, 0, 0, 0, 0, 0, 0, 0]. The 83 writes are split as follows [0, 4, 2, 13, 0, 23, 1, 3, 0, 6, 0, 0, 4, 1, 1, 0, 0, 3, 12, 7, 3]. [2023-11-26 11:44:59,439 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:58" (1/1) ... [2023-11-26 11:44:59,440 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:58" (1/1) ... [2023-11-26 11:44:59,603 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:58" (1/1) ... [2023-11-26 11:44:59,623 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:58" (1/1) ... [2023-11-26 11:44:59,658 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:58" (1/1) ... [2023-11-26 11:44:59,672 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:58" (1/1) ... [2023-11-26 11:44:59,705 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:44:59,706 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:44:59,706 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:44:59,706 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:44:59,707 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:58" (1/1) ... [2023-11-26 11:44:59,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:44:59,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:44:59,758 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:44:59,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:44:59,807 INFO L130 BoogieDeclarations]: Found specification of procedure xopen [2023-11-26 11:44:59,807 INFO L138 BoogieDeclarations]: Found implementation of procedure xopen [2023-11-26 11:44:59,807 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-11-26 11:44:59,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#0 [2023-11-26 11:44:59,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#1 [2023-11-26 11:44:59,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#2 [2023-11-26 11:44:59,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#3 [2023-11-26 11:44:59,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#4 [2023-11-26 11:44:59,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#5 [2023-11-26 11:44:59,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#6 [2023-11-26 11:44:59,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#7 [2023-11-26 11:44:59,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#8 [2023-11-26 11:44:59,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#9 [2023-11-26 11:44:59,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#10 [2023-11-26 11:44:59,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#11 [2023-11-26 11:44:59,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#12 [2023-11-26 11:44:59,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#13 [2023-11-26 11:44:59,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#14 [2023-11-26 11:44:59,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#15 [2023-11-26 11:44:59,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#16 [2023-11-26 11:44:59,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#17 [2023-11-26 11:44:59,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#18 [2023-11-26 11:44:59,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#19 [2023-11-26 11:44:59,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#20 [2023-11-26 11:44:59,814 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#0 [2023-11-26 11:44:59,814 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#1 [2023-11-26 11:44:59,814 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#2 [2023-11-26 11:44:59,814 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#3 [2023-11-26 11:44:59,814 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#4 [2023-11-26 11:44:59,815 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#5 [2023-11-26 11:44:59,815 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#6 [2023-11-26 11:44:59,815 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#7 [2023-11-26 11:44:59,815 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#8 [2023-11-26 11:44:59,815 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#9 [2023-11-26 11:44:59,816 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#10 [2023-11-26 11:44:59,816 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#11 [2023-11-26 11:44:59,816 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#12 [2023-11-26 11:44:59,816 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#13 [2023-11-26 11:44:59,816 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#14 [2023-11-26 11:44:59,816 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#15 [2023-11-26 11:44:59,817 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#16 [2023-11-26 11:44:59,817 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#17 [2023-11-26 11:44:59,817 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#18 [2023-11-26 11:44:59,817 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#19 [2023-11-26 11:44:59,817 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#20 [2023-11-26 11:44:59,817 INFO L130 BoogieDeclarations]: Found specification of procedure close [2023-11-26 11:44:59,818 INFO L130 BoogieDeclarations]: Found specification of procedure xrealloc [2023-11-26 11:44:59,818 INFO L138 BoogieDeclarations]: Found implementation of procedure xrealloc [2023-11-26 11:44:59,818 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-11-26 11:44:59,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:44:59,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2023-11-26 11:44:59,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2023-11-26 11:44:59,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2023-11-26 11:44:59,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2023-11-26 11:44:59,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2023-11-26 11:44:59,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2023-11-26 11:44:59,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2023-11-26 11:44:59,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2023-11-26 11:44:59,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2023-11-26 11:44:59,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2023-11-26 11:44:59,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#10 [2023-11-26 11:44:59,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#11 [2023-11-26 11:44:59,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#12 [2023-11-26 11:44:59,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#13 [2023-11-26 11:44:59,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#14 [2023-11-26 11:44:59,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#15 [2023-11-26 11:44:59,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#16 [2023-11-26 11:44:59,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#17 [2023-11-26 11:44:59,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#18 [2023-11-26 11:44:59,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#19 [2023-11-26 11:44:59,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#20 [2023-11-26 11:44:59,827 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2023-11-26 11:44:59,827 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2023-11-26 11:44:59,827 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2023-11-26 11:44:59,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2023-11-26 11:44:59,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2023-11-26 11:44:59,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2023-11-26 11:44:59,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2023-11-26 11:44:59,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2023-11-26 11:44:59,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2023-11-26 11:44:59,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2023-11-26 11:44:59,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2023-11-26 11:44:59,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2023-11-26 11:44:59,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2023-11-26 11:44:59,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2023-11-26 11:44:59,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2023-11-26 11:44:59,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2023-11-26 11:44:59,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2023-11-26 11:44:59,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2023-11-26 11:44:59,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2023-11-26 11:44:59,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2023-11-26 11:44:59,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#17 [2023-11-26 11:44:59,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#18 [2023-11-26 11:44:59,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#19 [2023-11-26 11:44:59,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#20 [2023-11-26 11:44:59,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 11:44:59,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 11:44:59,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-26 11:44:59,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-26 11:44:59,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-26 11:44:59,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-26 11:44:59,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-26 11:44:59,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-26 11:44:59,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-26 11:44:59,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-26 11:44:59,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-26 11:44:59,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-26 11:44:59,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-11-26 11:44:59,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-11-26 11:44:59,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-11-26 11:44:59,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2023-11-26 11:44:59,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2023-11-26 11:44:59,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2023-11-26 11:44:59,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2023-11-26 11:44:59,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2023-11-26 11:44:59,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2023-11-26 11:44:59,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 11:44:59,836 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-26 11:44:59,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:44:59,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-26 11:44:59,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-26 11:44:59,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-26 11:44:59,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-26 11:44:59,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-26 11:44:59,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-26 11:44:59,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-26 11:44:59,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-26 11:44:59,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-26 11:44:59,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-11-26 11:44:59,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-11-26 11:44:59,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-11-26 11:44:59,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-11-26 11:44:59,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2023-11-26 11:44:59,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2023-11-26 11:44:59,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2023-11-26 11:44:59,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2023-11-26 11:44:59,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2023-11-26 11:44:59,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2023-11-26 11:44:59,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2023-11-26 11:44:59,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#20 [2023-11-26 11:44:59,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:44:59,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:44:59,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#0 [2023-11-26 11:44:59,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#1 [2023-11-26 11:44:59,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#2 [2023-11-26 11:44:59,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#3 [2023-11-26 11:44:59,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#4 [2023-11-26 11:44:59,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#5 [2023-11-26 11:44:59,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#6 [2023-11-26 11:44:59,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#7 [2023-11-26 11:44:59,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#8 [2023-11-26 11:44:59,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#9 [2023-11-26 11:44:59,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#10 [2023-11-26 11:44:59,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#11 [2023-11-26 11:44:59,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#12 [2023-11-26 11:44:59,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#13 [2023-11-26 11:44:59,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#14 [2023-11-26 11:44:59,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#15 [2023-11-26 11:44:59,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#16 [2023-11-26 11:44:59,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#17 [2023-11-26 11:44:59,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#18 [2023-11-26 11:44:59,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#19 [2023-11-26 11:44:59,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#20 [2023-11-26 11:44:59,844 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#0 [2023-11-26 11:44:59,845 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#1 [2023-11-26 11:44:59,845 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#2 [2023-11-26 11:44:59,845 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#3 [2023-11-26 11:44:59,845 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#4 [2023-11-26 11:44:59,845 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#5 [2023-11-26 11:44:59,845 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#6 [2023-11-26 11:44:59,846 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#7 [2023-11-26 11:44:59,846 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#8 [2023-11-26 11:44:59,846 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#9 [2023-11-26 11:44:59,846 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#10 [2023-11-26 11:44:59,846 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#11 [2023-11-26 11:44:59,847 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#12 [2023-11-26 11:44:59,847 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#13 [2023-11-26 11:44:59,847 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#14 [2023-11-26 11:44:59,847 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#15 [2023-11-26 11:44:59,847 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#16 [2023-11-26 11:44:59,848 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#17 [2023-11-26 11:44:59,848 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#18 [2023-11-26 11:44:59,848 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#19 [2023-11-26 11:44:59,848 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#20 [2023-11-26 11:44:59,849 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc [2023-11-26 11:44:59,849 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc [2023-11-26 11:44:59,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2023-11-26 11:44:59,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2023-11-26 11:44:59,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2023-11-26 11:44:59,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2023-11-26 11:44:59,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2023-11-26 11:44:59,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2023-11-26 11:44:59,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2023-11-26 11:44:59,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2023-11-26 11:44:59,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2023-11-26 11:44:59,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2023-11-26 11:44:59,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#10 [2023-11-26 11:44:59,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#11 [2023-11-26 11:44:59,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#12 [2023-11-26 11:44:59,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#13 [2023-11-26 11:44:59,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#14 [2023-11-26 11:44:59,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#15 [2023-11-26 11:44:59,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#16 [2023-11-26 11:44:59,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#17 [2023-11-26 11:44:59,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#18 [2023-11-26 11:44:59,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#19 [2023-11-26 11:44:59,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#20 [2023-11-26 11:44:59,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2023-11-26 11:44:59,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2023-11-26 11:44:59,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2023-11-26 11:44:59,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2023-11-26 11:44:59,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2023-11-26 11:44:59,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2023-11-26 11:44:59,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2023-11-26 11:44:59,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2023-11-26 11:44:59,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2023-11-26 11:44:59,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2023-11-26 11:44:59,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2023-11-26 11:44:59,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2023-11-26 11:44:59,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2023-11-26 11:44:59,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2023-11-26 11:44:59,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2023-11-26 11:44:59,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#15 [2023-11-26 11:44:59,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#16 [2023-11-26 11:44:59,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#17 [2023-11-26 11:44:59,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#18 [2023-11-26 11:44:59,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#19 [2023-11-26 11:44:59,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#20 [2023-11-26 11:44:59,856 INFO L130 BoogieDeclarations]: Found specification of procedure bb_perror_msg_and_die [2023-11-26 11:44:59,856 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_perror_msg_and_die [2023-11-26 11:44:59,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-26 11:44:59,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-26 11:44:59,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-26 11:44:59,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-26 11:44:59,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2023-11-26 11:44:59,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2023-11-26 11:44:59,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2023-11-26 11:44:59,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2023-11-26 11:44:59,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2023-11-26 11:44:59,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#9 [2023-11-26 11:44:59,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#10 [2023-11-26 11:44:59,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#11 [2023-11-26 11:44:59,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#12 [2023-11-26 11:44:59,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#13 [2023-11-26 11:44:59,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#14 [2023-11-26 11:44:59,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#15 [2023-11-26 11:44:59,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#16 [2023-11-26 11:44:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#17 [2023-11-26 11:44:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#18 [2023-11-26 11:44:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#19 [2023-11-26 11:44:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#20 [2023-11-26 11:44:59,860 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-26 11:44:59,860 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-26 11:44:59,861 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-26 11:44:59,861 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-26 11:44:59,861 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2023-11-26 11:44:59,861 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2023-11-26 11:44:59,861 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2023-11-26 11:44:59,862 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2023-11-26 11:44:59,862 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2023-11-26 11:44:59,862 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#9 [2023-11-26 11:44:59,862 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#10 [2023-11-26 11:44:59,862 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#11 [2023-11-26 11:44:59,862 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#12 [2023-11-26 11:44:59,863 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#13 [2023-11-26 11:44:59,863 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#14 [2023-11-26 11:44:59,863 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#15 [2023-11-26 11:44:59,863 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#16 [2023-11-26 11:44:59,863 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#17 [2023-11-26 11:44:59,863 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#18 [2023-11-26 11:44:59,864 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#19 [2023-11-26 11:44:59,864 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#20 [2023-11-26 11:44:59,864 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 11:44:59,864 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 11:44:59,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:44:59,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-26 11:44:59,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-26 11:44:59,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-26 11:44:59,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-26 11:44:59,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-26 11:44:59,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-26 11:44:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-26 11:44:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-26 11:44:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-26 11:44:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-11-26 11:44:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-11-26 11:44:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-11-26 11:44:59,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-11-26 11:44:59,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2023-11-26 11:44:59,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2023-11-26 11:44:59,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2023-11-26 11:44:59,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2023-11-26 11:44:59,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2023-11-26 11:44:59,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2023-11-26 11:44:59,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2023-11-26 11:44:59,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#20 [2023-11-26 11:44:59,868 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2023-11-26 11:44:59,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-26 11:44:59,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-26 11:44:59,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-26 11:44:59,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-26 11:44:59,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-26 11:44:59,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-26 11:44:59,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-26 11:44:59,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-26 11:44:59,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-11-26 11:44:59,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-11-26 11:44:59,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-11-26 11:44:59,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2023-11-26 11:44:59,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2023-11-26 11:44:59,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2023-11-26 11:44:59,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2023-11-26 11:44:59,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2023-11-26 11:44:59,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2023-11-26 11:44:59,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2023-11-26 11:44:59,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2023-11-26 11:44:59,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#19 [2023-11-26 11:44:59,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#20 [2023-11-26 11:44:59,872 INFO L130 BoogieDeclarations]: Found specification of procedure bb_show_usage [2023-11-26 11:44:59,872 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_show_usage [2023-11-26 11:44:59,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 11:44:59,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 11:44:59,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 11:44:59,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-26 11:44:59,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-26 11:44:59,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-26 11:44:59,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-26 11:44:59,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-26 11:44:59,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-26 11:44:59,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-26 11:44:59,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-26 11:44:59,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-26 11:44:59,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-11-26 11:44:59,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-11-26 11:44:59,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-11-26 11:44:59,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2023-11-26 11:44:59,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2023-11-26 11:44:59,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2023-11-26 11:44:59,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2023-11-26 11:44:59,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2023-11-26 11:44:59,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2023-11-26 11:44:59,876 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2023-11-26 11:44:59,876 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2023-11-26 11:44:59,877 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2023-11-26 11:44:59,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:44:59,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 11:44:59,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 11:44:59,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 11:44:59,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-26 11:44:59,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-26 11:44:59,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-26 11:44:59,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-26 11:44:59,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-26 11:44:59,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-26 11:44:59,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-26 11:44:59,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-26 11:44:59,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-11-26 11:44:59,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-11-26 11:44:59,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-11-26 11:44:59,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-11-26 11:44:59,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-11-26 11:44:59,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-11-26 11:44:59,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2023-11-26 11:44:59,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2023-11-26 11:44:59,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2023-11-26 11:45:00,755 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:45:00,760 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:45:03,290 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:45:03,391 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:45:03,391 INFO L309 CfgBuilder]: Removed 53 assume(true) statements. [2023-11-26 11:45:03,392 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:45:03 BoogieIcfgContainer [2023-11-26 11:45:03,392 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:45:03,395 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:45:03,396 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:45:03,399 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:45:03,400 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:44:56" (1/3) ... [2023-11-26 11:45:03,400 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cbeb929 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:45:03, skipping insertion in model container [2023-11-26 11:45:03,401 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:58" (2/3) ... [2023-11-26 11:45:03,401 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cbeb929 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:45:03, skipping insertion in model container [2023-11-26 11:45:03,401 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:45:03" (3/3) ... [2023-11-26 11:45:03,403 INFO L112 eAbstractionObserver]: Analyzing ICFG uniq-1.i [2023-11-26 11:45:03,424 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:45:03,425 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 77 error locations. [2023-11-26 11:45:03,512 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:45:03,525 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;@39e0ef18, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:45:03,525 INFO L358 AbstractCegarLoop]: Starting to check reachability of 77 error locations. [2023-11-26 11:45:03,533 INFO L276 IsEmpty]: Start isEmpty. Operand has 587 states, 460 states have (on average 1.732608695652174) internal successors, (797), 539 states have internal predecessors, (797), 34 states have call successors, (34), 15 states have call predecessors, (34), 15 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-26 11:45:03,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-26 11:45:03,549 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:45:03,549 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-26 11:45:03,550 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 74 more)] === [2023-11-26 11:45:03,556 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:03,556 INFO L85 PathProgramCache]: Analyzing trace with hash 2466250, now seen corresponding path program 1 times [2023-11-26 11:45:03,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:03,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420838917] [2023-11-26 11:45:03,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:03,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:03,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:04,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:45:04,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:04,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420838917] [2023-11-26 11:45:04,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420838917] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:04,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:45:04,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 11:45:04,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902496095] [2023-11-26 11:45:04,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:04,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:45:04,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:04,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:45:04,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:45:04,289 INFO L87 Difference]: Start difference. First operand has 587 states, 460 states have (on average 1.732608695652174) internal successors, (797), 539 states have internal predecessors, (797), 34 states have call successors, (34), 15 states have call predecessors, (34), 15 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:04,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:45:04,546 INFO L93 Difference]: Finished difference Result 1153 states and 1733 transitions. [2023-11-26 11:45:04,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:45:04,549 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-26 11:45:04,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:45:04,571 INFO L225 Difference]: With dead ends: 1153 [2023-11-26 11:45:04,571 INFO L226 Difference]: Without dead ends: 558 [2023-11-26 11:45:04,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:45:04,587 INFO L413 NwaCegarLoop]: 756 mSDtfsCounter, 3 mSDsluCounter, 755 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1511 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:45:04,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1511 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:45:04,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2023-11-26 11:45:04,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 558. [2023-11-26 11:45:04,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 441 states have (on average 1.619047619047619) internal successors, (714), 520 states have internal predecessors, (714), 34 states have call successors, (34), 15 states have call predecessors, (34), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 11:45:04,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 772 transitions. [2023-11-26 11:45:04,676 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 772 transitions. Word has length 3 [2023-11-26 11:45:04,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:45:04,676 INFO L495 AbstractCegarLoop]: Abstraction has 558 states and 772 transitions. [2023-11-26 11:45:04,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:04,677 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 772 transitions. [2023-11-26 11:45:04,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-26 11:45:04,678 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:45:04,678 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-26 11:45:04,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:45:04,678 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 74 more)] === [2023-11-26 11:45:04,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:04,679 INFO L85 PathProgramCache]: Analyzing trace with hash 76454696, now seen corresponding path program 1 times [2023-11-26 11:45:04,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:04,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419055427] [2023-11-26 11:45:04,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:04,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:04,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:04,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:45:04,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:04,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419055427] [2023-11-26 11:45:04,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419055427] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:04,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:45:04,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 11:45:04,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872778035] [2023-11-26 11:45:04,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:04,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:45:04,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:04,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:45:04,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:45:04,883 INFO L87 Difference]: Start difference. First operand 558 states and 772 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2023-11-26 11:45:05,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:45:05,031 INFO L93 Difference]: Finished difference Result 1115 states and 1543 transitions. [2023-11-26 11:45:05,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:45:05,032 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 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 [2023-11-26 11:45:05,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:45:05,036 INFO L225 Difference]: With dead ends: 1115 [2023-11-26 11:45:05,037 INFO L226 Difference]: Without dead ends: 561 [2023-11-26 11:45:05,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:45:05,040 INFO L413 NwaCegarLoop]: 739 mSDtfsCounter, 0 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1475 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:45:05,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1475 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:45:05,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2023-11-26 11:45:05,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 561. [2023-11-26 11:45:05,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 444 states have (on average 1.614864864864865) internal successors, (717), 523 states have internal predecessors, (717), 34 states have call successors, (34), 15 states have call predecessors, (34), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 11:45:05,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 775 transitions. [2023-11-26 11:45:05,072 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 775 transitions. Word has length 4 [2023-11-26 11:45:05,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:45:05,073 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 775 transitions. [2023-11-26 11:45:05,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2023-11-26 11:45:05,073 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 775 transitions. [2023-11-26 11:45:05,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-26 11:45:05,074 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:45:05,074 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2023-11-26 11:45:05,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:45:05,074 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 74 more)] === [2023-11-26 11:45:05,075 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:05,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1330116167, now seen corresponding path program 1 times [2023-11-26 11:45:05,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:05,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876661325] [2023-11-26 11:45:05,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:05,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:05,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:05,204 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 11:45:05,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:05,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876661325] [2023-11-26 11:45:05,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876661325] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:05,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:45:05,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:45:05,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41615401] [2023-11-26 11:45:05,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:05,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:45:05,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:05,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:45:05,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:45:05,207 INFO L87 Difference]: Start difference. First operand 561 states and 775 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:05,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:45:05,325 INFO L93 Difference]: Finished difference Result 561 states and 775 transitions. [2023-11-26 11:45:05,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:45:05,326 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-26 11:45:05,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:45:05,331 INFO L225 Difference]: With dead ends: 561 [2023-11-26 11:45:05,331 INFO L226 Difference]: Without dead ends: 560 [2023-11-26 11:45:05,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:45:05,333 INFO L413 NwaCegarLoop]: 738 mSDtfsCounter, 0 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1474 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:45:05,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1474 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:45:05,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2023-11-26 11:45:05,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 558. [2023-11-26 11:45:05,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 442 states have (on average 1.6153846153846154) internal successors, (714), 520 states have internal predecessors, (714), 34 states have call successors, (34), 15 states have call predecessors, (34), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 11:45:05,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 772 transitions. [2023-11-26 11:45:05,357 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 772 transitions. Word has length 7 [2023-11-26 11:45:05,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:45:05,357 INFO L495 AbstractCegarLoop]: Abstraction has 558 states and 772 transitions. [2023-11-26 11:45:05,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:05,358 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 772 transitions. [2023-11-26 11:45:05,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-26 11:45:05,359 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:45:05,359 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:45:05,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 11:45:05,359 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 74 more)] === [2023-11-26 11:45:05,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:05,360 INFO L85 PathProgramCache]: Analyzing trace with hash -581790566, now seen corresponding path program 1 times [2023-11-26 11:45:05,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:05,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188196201] [2023-11-26 11:45:05,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:05,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:05,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:05,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-26 11:45:05,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:05,596 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:45:05,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:05,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188196201] [2023-11-26 11:45:05,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188196201] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:45:05,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [488744889] [2023-11-26 11:45:05,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:05,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:45:05,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:45:05,602 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:45:05,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 11:45:06,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:06,217 INFO L262 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:45:06,223 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:45:06,262 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 11:45:06,262 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:45:06,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [488744889] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:06,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:45:06,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-26 11:45:06,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839110289] [2023-11-26 11:45:06,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:06,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:45:06,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:06,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:45:06,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:45:06,266 INFO L87 Difference]: Start difference. First operand 558 states and 772 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:45:06,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:45:06,445 INFO L93 Difference]: Finished difference Result 558 states and 772 transitions. [2023-11-26 11:45:06,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:45:06,446 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2023-11-26 11:45:06,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:45:06,452 INFO L225 Difference]: With dead ends: 558 [2023-11-26 11:45:06,452 INFO L226 Difference]: Without dead ends: 556 [2023-11-26 11:45:06,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:45:06,454 INFO L413 NwaCegarLoop]: 729 mSDtfsCounter, 544 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:45:06,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 925 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:45:06,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2023-11-26 11:45:06,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2023-11-26 11:45:06,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 442 states have (on average 1.6108597285067874) internal successors, (712), 518 states have internal predecessors, (712), 34 states have call successors, (34), 15 states have call predecessors, (34), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 11:45:06,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 770 transitions. [2023-11-26 11:45:06,491 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 770 transitions. Word has length 12 [2023-11-26 11:45:06,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:45:06,493 INFO L495 AbstractCegarLoop]: Abstraction has 556 states and 770 transitions. [2023-11-26 11:45:06,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:45:06,493 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 770 transitions. [2023-11-26 11:45:06,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-26 11:45:06,494 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:45:06,494 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:45:06,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 11:45:06,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:45:06,717 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 74 more)] === [2023-11-26 11:45:06,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:06,718 INFO L85 PathProgramCache]: Analyzing trace with hash -855637407, now seen corresponding path program 1 times [2023-11-26 11:45:06,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:06,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990311771] [2023-11-26 11:45:06,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:06,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:06,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:06,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-26 11:45:06,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:06,949 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:45:06,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:06,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990311771] [2023-11-26 11:45:06,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990311771] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:45:06,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1958192496] [2023-11-26 11:45:06,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:06,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:45:06,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:45:06,952 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:45:06,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 11:45:07,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:07,459 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:45:07,460 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:45:07,502 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:45:07,503 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:45:07,538 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:45:07,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1958192496] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:45:07,538 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:45:07,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 4] total 6 [2023-11-26 11:45:07,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853546669] [2023-11-26 11:45:07,539 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:45:07,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:45:07,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:07,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:45:07,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:45:07,540 INFO L87 Difference]: Start difference. First operand 556 states and 770 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:45:07,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:45:07,691 INFO L93 Difference]: Finished difference Result 1116 states and 1546 transitions. [2023-11-26 11:45:07,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:45:07,692 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2023-11-26 11:45:07,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:45:07,697 INFO L225 Difference]: With dead ends: 1116 [2023-11-26 11:45:07,697 INFO L226 Difference]: Without dead ends: 565 [2023-11-26 11:45:07,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:45:07,700 INFO L413 NwaCegarLoop]: 736 mSDtfsCounter, 4 mSDsluCounter, 734 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1470 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:45:07,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1470 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:45:07,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2023-11-26 11:45:07,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 565. [2023-11-26 11:45:07,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 451 states have (on average 1.598669623059867) internal successors, (721), 527 states have internal predecessors, (721), 34 states have call successors, (34), 15 states have call predecessors, (34), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 11:45:07,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 779 transitions. [2023-11-26 11:45:07,726 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 779 transitions. Word has length 13 [2023-11-26 11:45:07,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:45:07,726 INFO L495 AbstractCegarLoop]: Abstraction has 565 states and 779 transitions. [2023-11-26 11:45:07,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:45:07,727 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 779 transitions. [2023-11-26 11:45:07,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-26 11:45:07,728 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:45:07,728 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:45:07,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 11:45:07,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:45:07,936 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 74 more)] === [2023-11-26 11:45:07,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:07,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1684569662, now seen corresponding path program 2 times [2023-11-26 11:45:07,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:07,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604715220] [2023-11-26 11:45:07,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:07,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:07,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:08,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 11:45:08,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:08,231 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:45:08,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:08,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604715220] [2023-11-26 11:45:08,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604715220] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:45:08,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [955297821] [2023-11-26 11:45:08,232 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 11:45:08,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:45:08,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:45:08,233 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:45:08,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 11:45:08,691 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-26 11:45:08,691 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:45:08,693 INFO L262 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 11:45:08,695 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:45:08,753 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-26 11:45:08,753 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:45:08,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [955297821] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:08,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:45:08,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2023-11-26 11:45:08,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315388554] [2023-11-26 11:45:08,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:08,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:45:08,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:08,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:45:08,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:45:08,756 INFO L87 Difference]: Start difference. First operand 565 states and 779 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:45:09,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:45:09,065 INFO L93 Difference]: Finished difference Result 565 states and 779 transitions. [2023-11-26 11:45:09,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:45:09,066 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2023-11-26 11:45:09,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:45:09,071 INFO L225 Difference]: With dead ends: 565 [2023-11-26 11:45:09,071 INFO L226 Difference]: Without dead ends: 563 [2023-11-26 11:45:09,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-26 11:45:09,072 INFO L413 NwaCegarLoop]: 722 mSDtfsCounter, 543 mSDsluCounter, 1620 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 557 SdHoareTripleChecker+Valid, 2342 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:45:09,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [557 Valid, 2342 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:45:09,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2023-11-26 11:45:09,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 563. [2023-11-26 11:45:09,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 451 states have (on average 1.5942350332594235) internal successors, (719), 525 states have internal predecessors, (719), 34 states have call successors, (34), 15 states have call predecessors, (34), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 11:45:09,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 777 transitions. [2023-11-26 11:45:09,104 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 777 transitions. Word has length 22 [2023-11-26 11:45:09,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:45:09,104 INFO L495 AbstractCegarLoop]: Abstraction has 563 states and 777 transitions. [2023-11-26 11:45:09,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:45:09,104 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 777 transitions. [2023-11-26 11:45:09,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-26 11:45:09,105 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:45:09,106 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:45:09,121 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-26 11:45:09,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:45:09,318 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 74 more)] === [2023-11-26 11:45:09,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:09,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1385317242, now seen corresponding path program 1 times [2023-11-26 11:45:09,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:09,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042147802] [2023-11-26 11:45:09,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:09,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:09,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:09,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 11:45:09,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:09,526 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-26 11:45:09,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:09,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042147802] [2023-11-26 11:45:09,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042147802] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:09,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:45:09,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:45:09,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946145447] [2023-11-26 11:45:09,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:09,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:45:09,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:09,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:45:09,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:45:09,529 INFO L87 Difference]: Start difference. First operand 563 states and 777 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:45:09,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:45:09,656 INFO L93 Difference]: Finished difference Result 1109 states and 1538 transitions. [2023-11-26 11:45:09,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:45:09,657 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2023-11-26 11:45:09,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:45:09,661 INFO L225 Difference]: With dead ends: 1109 [2023-11-26 11:45:09,662 INFO L226 Difference]: Without dead ends: 566 [2023-11-26 11:45:09,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:45:09,664 INFO L413 NwaCegarLoop]: 734 mSDtfsCounter, 1 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1463 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:45:09,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1463 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:45:09,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2023-11-26 11:45:09,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 566. [2023-11-26 11:45:09,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 454 states have (on average 1.5903083700440528) internal successors, (722), 528 states have internal predecessors, (722), 34 states have call successors, (34), 15 states have call predecessors, (34), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 11:45:09,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 780 transitions. [2023-11-26 11:45:09,720 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 780 transitions. Word has length 27 [2023-11-26 11:45:09,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:45:09,721 INFO L495 AbstractCegarLoop]: Abstraction has 566 states and 780 transitions. [2023-11-26 11:45:09,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:45:09,722 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 780 transitions. [2023-11-26 11:45:09,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-26 11:45:09,723 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:45:09,723 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:45:09,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 11:45:09,724 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 74 more)] === [2023-11-26 11:45:09,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:09,724 INFO L85 PathProgramCache]: Analyzing trace with hash 148731720, now seen corresponding path program 1 times [2023-11-26 11:45:09,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:09,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882372852] [2023-11-26 11:45:09,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:09,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:09,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:09,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 11:45:09,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:09,976 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-26 11:45:09,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:09,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882372852] [2023-11-26 11:45:09,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882372852] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:09,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:45:09,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:45:09,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862651208] [2023-11-26 11:45:09,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:09,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:45:09,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:09,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:45:09,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:45:09,980 INFO L87 Difference]: Start difference. First operand 566 states and 780 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:45:10,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:45:10,165 INFO L93 Difference]: Finished difference Result 840 states and 1193 transitions. [2023-11-26 11:45:10,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:45:10,166 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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 29 [2023-11-26 11:45:10,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:45:10,175 INFO L225 Difference]: With dead ends: 840 [2023-11-26 11:45:10,175 INFO L226 Difference]: Without dead ends: 838 [2023-11-26 11:45:10,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:45:10,177 INFO L413 NwaCegarLoop]: 729 mSDtfsCounter, 387 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 1450 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:45:10,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 1450 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:45:10,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2023-11-26 11:45:10,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 570. [2023-11-26 11:45:10,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 458 states have (on average 1.5873362445414847) internal successors, (727), 532 states have internal predecessors, (727), 34 states have call successors, (34), 15 states have call predecessors, (34), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 11:45:10,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 785 transitions. [2023-11-26 11:45:10,235 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 785 transitions. Word has length 29 [2023-11-26 11:45:10,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:45:10,235 INFO L495 AbstractCegarLoop]: Abstraction has 570 states and 785 transitions. [2023-11-26 11:45:10,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:45:10,236 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 785 transitions. [2023-11-26 11:45:10,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-26 11:45:10,237 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:45:10,237 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:45:10,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 11:45:10,238 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 74 more)] === [2023-11-26 11:45:10,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:10,238 INFO L85 PathProgramCache]: Analyzing trace with hash 355763825, now seen corresponding path program 1 times [2023-11-26 11:45:10,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:10,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680448297] [2023-11-26 11:45:10,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:10,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:10,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:10,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 11:45:10,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:10,474 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-26 11:45:10,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:10,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680448297] [2023-11-26 11:45:10,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680448297] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:45:10,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [24133138] [2023-11-26 11:45:10,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:10,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:45:10,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:45:10,477 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:45:10,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 11:45:11,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:11,049 INFO L262 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 11:45:11,052 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:45:11,148 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 11:45:11,149 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:45:11,255 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 11:45:11,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [24133138] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:45:11,258 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:45:11,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 6, 7] total 14 [2023-11-26 11:45:11,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027292780] [2023-11-26 11:45:11,258 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:45:11,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-26 11:45:11,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:11,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-26 11:45:11,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-26 11:45:11,261 INFO L87 Difference]: Start difference. First operand 570 states and 785 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 11:45:11,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:45:11,597 INFO L93 Difference]: Finished difference Result 1143 states and 1579 transitions. [2023-11-26 11:45:11,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-26 11:45:11,599 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2023-11-26 11:45:11,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:45:11,603 INFO L225 Difference]: With dead ends: 1143 [2023-11-26 11:45:11,604 INFO L226 Difference]: Without dead ends: 587 [2023-11-26 11:45:11,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-26 11:45:11,606 INFO L413 NwaCegarLoop]: 728 mSDtfsCounter, 7 mSDsluCounter, 2178 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2906 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:45:11,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2906 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:45:11,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2023-11-26 11:45:11,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 587. [2023-11-26 11:45:11,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 476 states have (on average 1.5630252100840336) internal successors, (744), 549 states have internal predecessors, (744), 34 states have call successors, (34), 15 states have call predecessors, (34), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 11:45:11,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 802 transitions. [2023-11-26 11:45:11,639 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 802 transitions. Word has length 30 [2023-11-26 11:45:11,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:45:11,639 INFO L495 AbstractCegarLoop]: Abstraction has 587 states and 802 transitions. [2023-11-26 11:45:11,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 11:45:11,640 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 802 transitions. [2023-11-26 11:45:11,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-26 11:45:11,642 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:45:11,642 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:45:11,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-26 11:45:11,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:45:11,853 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 74 more)] === [2023-11-26 11:45:11,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:11,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1188691805, now seen corresponding path program 1 times [2023-11-26 11:45:11,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:11,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62794531] [2023-11-26 11:45:11,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:11,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:11,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:12,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:45:12,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:12,073 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-26 11:45:12,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:12,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62794531] [2023-11-26 11:45:12,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62794531] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:12,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:45:12,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:45:12,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265566260] [2023-11-26 11:45:12,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:12,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:45:12,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:12,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:45:12,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:45:12,076 INFO L87 Difference]: Start difference. First operand 587 states and 802 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:45:12,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:45:12,201 INFO L93 Difference]: Finished difference Result 587 states and 802 transitions. [2023-11-26 11:45:12,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:45:12,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2023-11-26 11:45:12,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:45:12,206 INFO L225 Difference]: With dead ends: 587 [2023-11-26 11:45:12,207 INFO L226 Difference]: Without dead ends: 586 [2023-11-26 11:45:12,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:45:12,208 INFO L413 NwaCegarLoop]: 732 mSDtfsCounter, 0 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1461 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:45:12,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1461 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:45:12,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2023-11-26 11:45:12,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 584. [2023-11-26 11:45:12,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 474 states have (on average 1.5632911392405062) internal successors, (741), 546 states have internal predecessors, (741), 34 states have call successors, (34), 15 states have call predecessors, (34), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 11:45:12,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 799 transitions. [2023-11-26 11:45:12,240 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 799 transitions. Word has length 49 [2023-11-26 11:45:12,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:45:12,240 INFO L495 AbstractCegarLoop]: Abstraction has 584 states and 799 transitions. [2023-11-26 11:45:12,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:45:12,241 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 799 transitions. [2023-11-26 11:45:12,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-26 11:45:12,242 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:45:12,243 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:45:12,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 11:45:12,243 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 74 more)] === [2023-11-26 11:45:12,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:12,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1188693534, now seen corresponding path program 1 times [2023-11-26 11:45:12,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:12,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061710308] [2023-11-26 11:45:12,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:12,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:12,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:12,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:45:12,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:12,475 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-26 11:45:12,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:12,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061710308] [2023-11-26 11:45:12,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061710308] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:12,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:45:12,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:45:12,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848477541] [2023-11-26 11:45:12,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:12,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:45:12,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:12,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:45:12,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:45:12,478 INFO L87 Difference]: Start difference. First operand 584 states and 799 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:45:12,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:45:12,659 INFO L93 Difference]: Finished difference Result 595 states and 812 transitions. [2023-11-26 11:45:12,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:45:12,660 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2023-11-26 11:45:12,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:45:12,665 INFO L225 Difference]: With dead ends: 595 [2023-11-26 11:45:12,665 INFO L226 Difference]: Without dead ends: 593 [2023-11-26 11:45:12,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:45:12,666 INFO L413 NwaCegarLoop]: 730 mSDtfsCounter, 2 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1456 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:45:12,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1456 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:45:12,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2023-11-26 11:45:12,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 592. [2023-11-26 11:45:12,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 482 states have (on average 1.558091286307054) internal successors, (751), 554 states have internal predecessors, (751), 34 states have call successors, (34), 15 states have call predecessors, (34), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 11:45:12,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 809 transitions. [2023-11-26 11:45:12,699 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 809 transitions. Word has length 49 [2023-11-26 11:45:12,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:45:12,700 INFO L495 AbstractCegarLoop]: Abstraction has 592 states and 809 transitions. [2023-11-26 11:45:12,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:45:12,700 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 809 transitions. [2023-11-26 11:45:12,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-26 11:45:12,701 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:45:12,701 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:45:12,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 11:45:12,702 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 74 more)] === [2023-11-26 11:45:12,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:12,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1095392769, now seen corresponding path program 1 times [2023-11-26 11:45:12,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:12,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873607948] [2023-11-26 11:45:12,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:12,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:12,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:13,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:45:13,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:13,027 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 11:45:13,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:13,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873607948] [2023-11-26 11:45:13,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873607948] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:45:13,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [477854083] [2023-11-26 11:45:13,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:13,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:45:13,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:45:13,030 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:45:13,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-26 11:45:13,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:13,695 INFO L262 TraceCheckSpWp]: Trace formula consists of 703 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:45:13,699 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:45:13,723 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 11:45:13,724 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:45:13,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [477854083] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:13,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:45:13,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-26 11:45:13,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576551732] [2023-11-26 11:45:13,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:13,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:45:13,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:13,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:45:13,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:45:13,730 INFO L87 Difference]: Start difference. First operand 592 states and 809 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:45:14,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:45:14,024 INFO L93 Difference]: Finished difference Result 864 states and 1221 transitions. [2023-11-26 11:45:14,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:45:14,025 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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 51 [2023-11-26 11:45:14,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:45:14,033 INFO L225 Difference]: With dead ends: 864 [2023-11-26 11:45:14,033 INFO L226 Difference]: Without dead ends: 863 [2023-11-26 11:45:14,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:45:14,034 INFO L413 NwaCegarLoop]: 1118 mSDtfsCounter, 775 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 791 SdHoareTripleChecker+Valid, 1844 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:45:14,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [791 Valid, 1844 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:45:14,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states. [2023-11-26 11:45:14,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 591. [2023-11-26 11:45:14,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 482 states have (on average 1.5560165975103735) internal successors, (750), 553 states have internal predecessors, (750), 34 states have call successors, (34), 15 states have call predecessors, (34), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 11:45:14,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 808 transitions. [2023-11-26 11:45:14,077 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 808 transitions. Word has length 51 [2023-11-26 11:45:14,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:45:14,078 INFO L495 AbstractCegarLoop]: Abstraction has 591 states and 808 transitions. [2023-11-26 11:45:14,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:45:14,079 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 808 transitions. [2023-11-26 11:45:14,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-26 11:45:14,080 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:45:14,080 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:45:14,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-26 11:45:14,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:45:14,289 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 74 more)] === [2023-11-26 11:45:14,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:14,289 INFO L85 PathProgramCache]: Analyzing trace with hash -402561522, now seen corresponding path program 1 times [2023-11-26 11:45:14,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:14,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038558038] [2023-11-26 11:45:14,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:14,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:14,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:14,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:45:14,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:14,550 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 11:45:14,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:14,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038558038] [2023-11-26 11:45:14,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038558038] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:45:14,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562649809] [2023-11-26 11:45:14,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:14,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:45:14,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:45:14,552 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:45:14,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-26 11:45:15,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:15,225 INFO L262 TraceCheckSpWp]: Trace formula consists of 704 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:45:15,229 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:45:15,258 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 11:45:15,258 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:45:15,288 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 11:45:15,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1562649809] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:45:15,289 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:45:15,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-26 11:45:15,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195943608] [2023-11-26 11:45:15,290 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:45:15,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:45:15,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:15,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:45:15,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:45:15,291 INFO L87 Difference]: Start difference. First operand 591 states and 808 transitions. Second operand has 7 states, 6 states have (on average 6.166666666666667) 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) [2023-11-26 11:45:15,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:45:15,688 INFO L93 Difference]: Finished difference Result 1676 states and 2450 transitions. [2023-11-26 11:45:15,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:45:15,689 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.166666666666667) 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 52 [2023-11-26 11:45:15,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:45:15,699 INFO L225 Difference]: With dead ends: 1676 [2023-11-26 11:45:15,699 INFO L226 Difference]: Without dead ends: 1675 [2023-11-26 11:45:15,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:45:15,701 INFO L413 NwaCegarLoop]: 726 mSDtfsCounter, 1930 mSDsluCounter, 3891 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1962 SdHoareTripleChecker+Valid, 4617 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:45:15,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1962 Valid, 4617 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 11:45:15,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1675 states. [2023-11-26 11:45:15,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1675 to 603. [2023-11-26 11:45:15,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 494 states have (on average 1.548582995951417) internal successors, (765), 565 states have internal predecessors, (765), 34 states have call successors, (34), 15 states have call predecessors, (34), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 11:45:15,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 823 transitions. [2023-11-26 11:45:15,742 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 823 transitions. Word has length 52 [2023-11-26 11:45:15,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:45:15,743 INFO L495 AbstractCegarLoop]: Abstraction has 603 states and 823 transitions. [2023-11-26 11:45:15,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.166666666666667) 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) [2023-11-26 11:45:15,743 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 823 transitions. [2023-11-26 11:45:15,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-26 11:45:15,744 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:45:15,744 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:45:15,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-26 11:45:15,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:45:15,952 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 74 more)] === [2023-11-26 11:45:15,952 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:15,952 INFO L85 PathProgramCache]: Analyzing trace with hash 310521739, now seen corresponding path program 1 times [2023-11-26 11:45:15,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:15,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260777463] [2023-11-26 11:45:15,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:15,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:16,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:16,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:45:16,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:16,165 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-26 11:45:16,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:16,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260777463] [2023-11-26 11:45:16,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260777463] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:45:16,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [274232045] [2023-11-26 11:45:16,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:16,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:45:16,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:45:16,167 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:45:16,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-26 11:45:16,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:16,838 INFO L262 TraceCheckSpWp]: Trace formula consists of 662 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:45:16,841 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:45:16,861 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-26 11:45:16,861 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:45:16,892 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-26 11:45:16,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [274232045] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:45:16,893 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:45:16,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-26 11:45:16,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848406879] [2023-11-26 11:45:16,893 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:45:16,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:45:16,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:16,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:45:16,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:45:16,895 INFO L87 Difference]: Start difference. First operand 603 states and 823 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:45:17,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:45:17,056 INFO L93 Difference]: Finished difference Result 1181 states and 1623 transitions. [2023-11-26 11:45:17,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:45:17,057 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57 [2023-11-26 11:45:17,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:45:17,062 INFO L225 Difference]: With dead ends: 1181 [2023-11-26 11:45:17,062 INFO L226 Difference]: Without dead ends: 621 [2023-11-26 11:45:17,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:45:17,065 INFO L413 NwaCegarLoop]: 731 mSDtfsCounter, 4 mSDsluCounter, 1456 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2187 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:45:17,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2187 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:45:17,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2023-11-26 11:45:17,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 621. [2023-11-26 11:45:17,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 621 states, 512 states have (on average 1.529296875) internal successors, (783), 583 states have internal predecessors, (783), 34 states have call successors, (34), 15 states have call predecessors, (34), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 11:45:17,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 841 transitions. [2023-11-26 11:45:17,105 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 841 transitions. Word has length 57 [2023-11-26 11:45:17,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:45:17,105 INFO L495 AbstractCegarLoop]: Abstraction has 621 states and 841 transitions. [2023-11-26 11:45:17,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:45:17,106 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 841 transitions. [2023-11-26 11:45:17,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-26 11:45:17,107 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:45:17,107 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:45:17,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-26 11:45:17,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-26 11:45:17,317 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 74 more)] === [2023-11-26 11:45:17,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:17,317 INFO L85 PathProgramCache]: Analyzing trace with hash 551299980, now seen corresponding path program 1 times [2023-11-26 11:45:17,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:17,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126191933] [2023-11-26 11:45:17,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:17,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:17,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:17,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:45:17,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:17,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-26 11:45:17,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:17,661 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 11:45:17,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:17,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126191933] [2023-11-26 11:45:17,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126191933] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:17,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:45:17,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:45:17,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871399053] [2023-11-26 11:45:17,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:17,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:45:17,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:17,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:45:17,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:45:17,665 INFO L87 Difference]: Start difference. First operand 621 states and 841 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 11:45:18,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:45:18,720 INFO L93 Difference]: Finished difference Result 1233 states and 1707 transitions. [2023-11-26 11:45:18,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:45:18,720 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 60 [2023-11-26 11:45:18,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:45:18,727 INFO L225 Difference]: With dead ends: 1233 [2023-11-26 11:45:18,727 INFO L226 Difference]: Without dead ends: 718 [2023-11-26 11:45:18,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:45:18,730 INFO L413 NwaCegarLoop]: 581 mSDtfsCounter, 295 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 1566 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:45:18,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 1566 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-26 11:45:18,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2023-11-26 11:45:18,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 661. [2023-11-26 11:45:18,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 551 states have (on average 1.5190562613430127) internal successors, (837), 622 states have internal predecessors, (837), 35 states have call successors, (35), 15 states have call predecessors, (35), 12 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-26 11:45:18,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 897 transitions. [2023-11-26 11:45:18,774 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 897 transitions. Word has length 60 [2023-11-26 11:45:18,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:45:18,775 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 897 transitions. [2023-11-26 11:45:18,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 11:45:18,776 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 897 transitions. [2023-11-26 11:45:18,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-26 11:45:18,777 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:45:18,777 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:45:18,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-26 11:45:18,777 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 74 more)] === [2023-11-26 11:45:18,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:18,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1518336977, now seen corresponding path program 1 times [2023-11-26 11:45:18,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:18,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822470105] [2023-11-26 11:45:18,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:18,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:18,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:19,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:45:19,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:19,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-26 11:45:19,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:19,094 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 11:45:19,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:19,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822470105] [2023-11-26 11:45:19,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822470105] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:19,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:45:19,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:45:19,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38823892] [2023-11-26 11:45:19,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:19,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:45:19,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:19,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:45:19,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:45:19,097 INFO L87 Difference]: Start difference. First operand 661 states and 897 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:45:20,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:45:20,004 INFO L93 Difference]: Finished difference Result 665 states and 900 transitions. [2023-11-26 11:45:20,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:45:20,005 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 62 [2023-11-26 11:45:20,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:45:20,010 INFO L225 Difference]: With dead ends: 665 [2023-11-26 11:45:20,010 INFO L226 Difference]: Without dead ends: 663 [2023-11-26 11:45:20,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:45:20,011 INFO L413 NwaCegarLoop]: 561 mSDtfsCounter, 175 mSDsluCounter, 1029 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 1590 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-26 11:45:20,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 1590 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-26 11:45:20,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2023-11-26 11:45:20,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 661. [2023-11-26 11:45:20,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 551 states have (on average 1.515426497277677) internal successors, (835), 622 states have internal predecessors, (835), 35 states have call successors, (35), 15 states have call predecessors, (35), 12 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-26 11:45:20,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 895 transitions. [2023-11-26 11:45:20,049 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 895 transitions. Word has length 62 [2023-11-26 11:45:20,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:45:20,050 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 895 transitions. [2023-11-26 11:45:20,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:45:20,050 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 895 transitions. [2023-11-26 11:45:20,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-26 11:45:20,051 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:45:20,051 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:45:20,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-26 11:45:20,052 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 74 more)] === [2023-11-26 11:45:20,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:20,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1290658397, now seen corresponding path program 2 times [2023-11-26 11:45:20,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:20,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911003490] [2023-11-26 11:45:20,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:20,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:20,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:20,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:45:20,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:20,429 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 11:45:20,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:20,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911003490] [2023-11-26 11:45:20,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911003490] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:45:20,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075341670] [2023-11-26 11:45:20,430 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 11:45:20,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:45:20,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:45:20,431 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:45:20,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-26 11:45:21,069 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-26 11:45:21,070 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:45:21,072 INFO L262 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 11:45:21,076 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:45:21,172 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2023-11-26 11:45:21,172 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:45:21,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2075341670] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:21,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:45:21,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2023-11-26 11:45:21,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814710377] [2023-11-26 11:45:21,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:21,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:45:21,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:21,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:45:21,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-26 11:45:21,175 INFO L87 Difference]: Start difference. First operand 661 states and 895 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:45:21,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:45:21,601 INFO L93 Difference]: Finished difference Result 1248 states and 1710 transitions. [2023-11-26 11:45:21,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:45:21,605 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2023-11-26 11:45:21,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:45:21,609 INFO L225 Difference]: With dead ends: 1248 [2023-11-26 11:45:21,609 INFO L226 Difference]: Without dead ends: 661 [2023-11-26 11:45:21,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-11-26 11:45:21,612 INFO L413 NwaCegarLoop]: 716 mSDtfsCounter, 544 mSDsluCounter, 2309 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 3025 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:45:21,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 3025 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 11:45:21,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2023-11-26 11:45:21,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 661. [2023-11-26 11:45:21,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 551 states have (on average 1.513611615245009) internal successors, (834), 622 states have internal predecessors, (834), 35 states have call successors, (35), 15 states have call predecessors, (35), 12 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-26 11:45:21,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 894 transitions. [2023-11-26 11:45:21,652 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 894 transitions. Word has length 64 [2023-11-26 11:45:21,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:45:21,653 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 894 transitions. [2023-11-26 11:45:21,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:45:21,653 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 894 transitions. [2023-11-26 11:45:21,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-26 11:45:21,656 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:45:21,657 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:45:21,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-26 11:45:21,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-26 11:45:21,867 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 74 more)] === [2023-11-26 11:45:21,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:21,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1743418951, now seen corresponding path program 2 times [2023-11-26 11:45:21,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:21,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021937537] [2023-11-26 11:45:21,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:21,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:22,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:22,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:45:22,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:22,335 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-11-26 11:45:22,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:22,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021937537] [2023-11-26 11:45:22,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021937537] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:45:22,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [84355548] [2023-11-26 11:45:22,336 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 11:45:22,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:45:22,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:45:22,338 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:45:22,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-26 11:45:23,170 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 11:45:23,170 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:45:23,175 INFO L262 TraceCheckSpWp]: Trace formula consists of 776 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 11:45:23,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:45:23,248 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 58 proven. 22 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2023-11-26 11:45:23,248 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:45:23,370 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 58 proven. 22 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2023-11-26 11:45:23,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [84355548] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:45:23,371 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:45:23,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2023-11-26 11:45:23,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946747543] [2023-11-26 11:45:23,371 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:45:23,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-26 11:45:23,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:23,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-26 11:45:23,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-26 11:45:23,374 INFO L87 Difference]: Start difference. First operand 661 states and 894 transitions. Second operand has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:45:24,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:45:24,146 INFO L93 Difference]: Finished difference Result 1305 states and 1781 transitions. [2023-11-26 11:45:24,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-26 11:45:24,151 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2023-11-26 11:45:24,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:45:24,155 INFO L225 Difference]: With dead ends: 1305 [2023-11-26 11:45:24,155 INFO L226 Difference]: Without dead ends: 696 [2023-11-26 11:45:24,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=330, Invalid=792, Unknown=0, NotChecked=0, Total=1122 [2023-11-26 11:45:24,158 INFO L413 NwaCegarLoop]: 727 mSDtfsCounter, 11 mSDsluCounter, 4338 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 5065 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-26 11:45:24,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 5065 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-26 11:45:24,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2023-11-26 11:45:24,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 696. [2023-11-26 11:45:24,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 587 states have (on average 1.4804088586030664) internal successors, (869), 657 states have internal predecessors, (869), 35 states have call successors, (35), 15 states have call predecessors, (35), 12 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-26 11:45:24,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 929 transitions. [2023-11-26 11:45:24,194 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 929 transitions. Word has length 75 [2023-11-26 11:45:24,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:45:24,194 INFO L495 AbstractCegarLoop]: Abstraction has 696 states and 929 transitions. [2023-11-26 11:45:24,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:45:24,195 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 929 transitions. [2023-11-26 11:45:24,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-26 11:45:24,196 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:45:24,196 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:45:24,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-26 11:45:24,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-26 11:45:24,407 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 74 more)] === [2023-11-26 11:45:24,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:24,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1404624177, now seen corresponding path program 1 times [2023-11-26 11:45:24,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:24,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239331707] [2023-11-26 11:45:24,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:24,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:24,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:24,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:45:24,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:24,906 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-26 11:45:24,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:24,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239331707] [2023-11-26 11:45:24,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239331707] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:45:24,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334281860] [2023-11-26 11:45:24,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:24,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:45:24,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:45:24,909 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:45:24,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-26 11:45:25,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:25,729 INFO L262 TraceCheckSpWp]: Trace formula consists of 976 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 11:45:25,733 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:45:25,787 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-26 11:45:25,787 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:45:25,870 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-26 11:45:25,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [334281860] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:45:25,871 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:45:25,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-11-26 11:45:25,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093620190] [2023-11-26 11:45:25,873 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:45:25,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-26 11:45:25,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:25,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-26 11:45:25,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-26 11:45:25,876 INFO L87 Difference]: Start difference. First operand 696 states and 929 transitions. Second operand has 13 states, 12 states have (on average 5.75) internal successors, (69), 13 states have internal predecessors, (69), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:45:26,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:45:26,700 INFO L93 Difference]: Finished difference Result 3801 states and 5565 transitions. [2023-11-26 11:45:26,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-26 11:45:26,701 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.75) internal successors, (69), 13 states have internal predecessors, (69), 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 99 [2023-11-26 11:45:26,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:45:26,722 INFO L225 Difference]: With dead ends: 3801 [2023-11-26 11:45:26,723 INFO L226 Difference]: Without dead ends: 3800 [2023-11-26 11:45:26,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-26 11:45:26,725 INFO L413 NwaCegarLoop]: 725 mSDtfsCounter, 7133 mSDsluCounter, 5971 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7213 SdHoareTripleChecker+Valid, 6696 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-26 11:45:26,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7213 Valid, 6696 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-26 11:45:26,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3800 states. [2023-11-26 11:45:26,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3800 to 720. [2023-11-26 11:45:26,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 611 states have (on average 1.4713584288052373) internal successors, (899), 681 states have internal predecessors, (899), 35 states have call successors, (35), 15 states have call predecessors, (35), 12 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-26 11:45:26,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 959 transitions. [2023-11-26 11:45:26,792 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 959 transitions. Word has length 99 [2023-11-26 11:45:26,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:45:26,792 INFO L495 AbstractCegarLoop]: Abstraction has 720 states and 959 transitions. [2023-11-26 11:45:26,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.75) internal successors, (69), 13 states have internal predecessors, (69), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:45:26,793 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 959 transitions. [2023-11-26 11:45:26,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-26 11:45:26,794 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:45:26,794 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] [2023-11-26 11:45:26,808 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-26 11:45:27,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:45:27,004 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 74 more)] === [2023-11-26 11:45:27,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:27,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1788319809, now seen corresponding path program 1 times [2023-11-26 11:45:27,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:27,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82492147] [2023-11-26 11:45:27,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:27,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:27,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:27,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:45:27,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:27,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-26 11:45:27,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:27,291 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-26 11:45:27,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:27,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82492147] [2023-11-26 11:45:27,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82492147] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:27,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:45:27,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:45:27,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267412571] [2023-11-26 11:45:27,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:27,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:45:27,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:27,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:45:27,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:45:27,294 INFO L87 Difference]: Start difference. First operand 720 states and 959 transitions. Second operand has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 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) [2023-11-26 11:45:28,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:45:28,423 INFO L93 Difference]: Finished difference Result 1255 states and 1728 transitions. [2023-11-26 11:45:28,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:45:28,424 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 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 [2023-11-26 11:45:28,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:45:28,430 INFO L225 Difference]: With dead ends: 1255 [2023-11-26 11:45:28,430 INFO L226 Difference]: Without dead ends: 795 [2023-11-26 11:45:28,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:45:28,433 INFO L413 NwaCegarLoop]: 624 mSDtfsCounter, 289 mSDsluCounter, 1028 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 1652 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:45:28,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 1652 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-26 11:45:28,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2023-11-26 11:45:28,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 723. [2023-11-26 11:45:28,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 723 states, 616 states have (on average 1.4659090909090908) internal successors, (903), 684 states have internal predecessors, (903), 35 states have call successors, (35), 15 states have call predecessors, (35), 12 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-26 11:45:28,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 963 transitions. [2023-11-26 11:45:28,485 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 963 transitions. Word has length 104 [2023-11-26 11:45:28,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:45:28,486 INFO L495 AbstractCegarLoop]: Abstraction has 723 states and 963 transitions. [2023-11-26 11:45:28,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 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) [2023-11-26 11:45:28,486 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 963 transitions. [2023-11-26 11:45:28,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-26 11:45:28,488 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:45:28,488 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] [2023-11-26 11:45:28,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-26 11:45:28,489 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 74 more)] === [2023-11-26 11:45:28,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:28,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1788952300, now seen corresponding path program 1 times [2023-11-26 11:45:28,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:28,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614950796] [2023-11-26 11:45:28,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:28,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:28,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:28,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:45:28,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:28,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-26 11:45:28,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:28,900 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-26 11:45:28,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:28,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614950796] [2023-11-26 11:45:28,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614950796] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:28,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:45:28,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:45:28,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095178883] [2023-11-26 11:45:28,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:28,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:45:28,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:28,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:45:28,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:45:28,903 INFO L87 Difference]: Start difference. First operand 723 states and 963 transitions. Second operand has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 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) [2023-11-26 11:45:30,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:45:30,016 INFO L93 Difference]: Finished difference Result 729 states and 972 transitions. [2023-11-26 11:45:30,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:45:30,017 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 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 [2023-11-26 11:45:30,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:45:30,023 INFO L225 Difference]: With dead ends: 729 [2023-11-26 11:45:30,023 INFO L226 Difference]: Without dead ends: 726 [2023-11-26 11:45:30,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:45:30,025 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 514 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 1145 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:45:30,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 1145 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-26 11:45:30,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2023-11-26 11:45:30,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 720. [2023-11-26 11:45:30,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 616 states have (on average 1.4610389610389611) internal successors, (900), 681 states have internal predecessors, (900), 35 states have call successors, (35), 15 states have call predecessors, (35), 12 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-26 11:45:30,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 960 transitions. [2023-11-26 11:45:30,079 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 960 transitions. Word has length 104 [2023-11-26 11:45:30,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:45:30,080 INFO L495 AbstractCegarLoop]: Abstraction has 720 states and 960 transitions. [2023-11-26 11:45:30,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 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) [2023-11-26 11:45:30,080 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 960 transitions. [2023-11-26 11:45:30,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-26 11:45:30,082 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:45:30,083 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] [2023-11-26 11:45:30,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-26 11:45:30,083 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 74 more)] === [2023-11-26 11:45:30,083 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:30,084 INFO L85 PathProgramCache]: Analyzing trace with hash -396659527, now seen corresponding path program 1 times [2023-11-26 11:45:30,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:30,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714677037] [2023-11-26 11:45:30,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:30,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:30,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:30,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:45:30,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:30,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-26 11:45:30,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:30,382 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-26 11:45:30,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:30,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714677037] [2023-11-26 11:45:30,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714677037] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:30,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:45:30,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:45:30,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772065355] [2023-11-26 11:45:30,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:30,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:45:30,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:30,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:45:30,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:45:30,385 INFO L87 Difference]: Start difference. First operand 720 states and 960 transitions. Second operand has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:45:31,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:45:31,613 INFO L93 Difference]: Finished difference Result 1261 states and 1736 transitions. [2023-11-26 11:45:31,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:45:31,617 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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 105 [2023-11-26 11:45:31,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:45:31,622 INFO L225 Difference]: With dead ends: 1261 [2023-11-26 11:45:31,623 INFO L226 Difference]: Without dead ends: 797 [2023-11-26 11:45:31,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:45:31,625 INFO L413 NwaCegarLoop]: 569 mSDtfsCounter, 409 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 1461 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:45:31,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [425 Valid, 1461 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-26 11:45:31,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2023-11-26 11:45:31,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 705. [2023-11-26 11:45:31,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 605 states have (on average 1.4545454545454546) internal successors, (880), 666 states have internal predecessors, (880), 35 states have call successors, (35), 15 states have call predecessors, (35), 12 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-26 11:45:31,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 940 transitions. [2023-11-26 11:45:31,681 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 940 transitions. Word has length 105 [2023-11-26 11:45:31,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:45:31,681 INFO L495 AbstractCegarLoop]: Abstraction has 705 states and 940 transitions. [2023-11-26 11:45:31,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:45:31,682 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 940 transitions. [2023-11-26 11:45:31,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-26 11:45:31,684 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:45:31,685 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] [2023-11-26 11:45:31,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-26 11:45:31,685 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 74 more)] === [2023-11-26 11:45:31,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:31,686 INFO L85 PathProgramCache]: Analyzing trace with hash -377052246, now seen corresponding path program 1 times [2023-11-26 11:45:31,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:31,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382123542] [2023-11-26 11:45:31,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:31,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:31,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:32,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:45:32,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:32,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-26 11:45:32,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:32,112 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-26 11:45:32,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:32,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382123542] [2023-11-26 11:45:32,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382123542] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:32,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:45:32,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:45:32,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683432475] [2023-11-26 11:45:32,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:32,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:45:32,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:32,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:45:32,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:45:32,116 INFO L87 Difference]: Start difference. First operand 705 states and 940 transitions. Second operand has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:45:33,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:45:33,269 INFO L93 Difference]: Finished difference Result 754 states and 1014 transitions. [2023-11-26 11:45:33,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:45:33,269 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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 105 [2023-11-26 11:45:33,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:45:33,275 INFO L225 Difference]: With dead ends: 754 [2023-11-26 11:45:33,275 INFO L226 Difference]: Without dead ends: 753 [2023-11-26 11:45:33,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:45:33,277 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 543 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:45:33,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [561 Valid, 1240 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-26 11:45:33,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2023-11-26 11:45:33,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 704. [2023-11-26 11:45:33,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 605 states have (on average 1.4528925619834712) internal successors, (879), 665 states have internal predecessors, (879), 35 states have call successors, (35), 15 states have call predecessors, (35), 12 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-26 11:45:33,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 939 transitions. [2023-11-26 11:45:33,329 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 939 transitions. Word has length 105 [2023-11-26 11:45:33,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:45:33,329 INFO L495 AbstractCegarLoop]: Abstraction has 704 states and 939 transitions. [2023-11-26 11:45:33,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:45:33,330 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 939 transitions. [2023-11-26 11:45:33,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-26 11:45:33,332 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:45:33,332 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] [2023-11-26 11:45:33,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-26 11:45:33,332 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 74 more)] === [2023-11-26 11:45:33,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:33,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1657734831, now seen corresponding path program 1 times [2023-11-26 11:45:33,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:33,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511017088] [2023-11-26 11:45:33,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:33,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:33,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:33,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:45:33,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:33,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-26 11:45:33,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:33,792 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-26 11:45:33,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:33,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511017088] [2023-11-26 11:45:33,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511017088] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:45:33,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465691977] [2023-11-26 11:45:33,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:33,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:45:33,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:45:33,794 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:45:33,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-26 11:45:34,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:34,786 INFO L262 TraceCheckSpWp]: Trace formula consists of 1067 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:45:34,791 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:45:34,874 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-26 11:45:34,875 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:45:34,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465691977] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:34,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:45:34,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 6 [2023-11-26 11:45:34,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668785957] [2023-11-26 11:45:34,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:34,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:45:34,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:34,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:45:34,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:45:34,877 INFO L87 Difference]: Start difference. First operand 704 states and 939 transitions. Second operand has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 11:45:35,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:45:35,321 INFO L93 Difference]: Finished difference Result 1289 states and 1765 transitions. [2023-11-26 11:45:35,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:45:35,322 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 106 [2023-11-26 11:45:35,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:45:35,327 INFO L225 Difference]: With dead ends: 1289 [2023-11-26 11:45:35,327 INFO L226 Difference]: Without dead ends: 776 [2023-11-26 11:45:35,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:45:35,329 INFO L413 NwaCegarLoop]: 794 mSDtfsCounter, 459 mSDsluCounter, 1150 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 1944 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-26 11:45:35,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [470 Valid, 1944 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-26 11:45:35,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2023-11-26 11:45:35,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 703. [2023-11-26 11:45:35,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 606 states have (on average 1.4455445544554455) internal successors, (876), 664 states have internal predecessors, (876), 35 states have call successors, (35), 15 states have call predecessors, (35), 12 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-26 11:45:35,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 936 transitions. [2023-11-26 11:45:35,377 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 936 transitions. Word has length 106 [2023-11-26 11:45:35,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:45:35,378 INFO L495 AbstractCegarLoop]: Abstraction has 703 states and 936 transitions. [2023-11-26 11:45:35,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 11:45:35,378 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 936 transitions. [2023-11-26 11:45:35,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-26 11:45:35,380 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:45:35,380 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:45:35,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-26 11:45:35,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc66b50-dc35-4dcf-b2b6-74f3cc1ffbd3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-26 11:45:35,591 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 74 more)] === [2023-11-26 11:45:35,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:35,591 INFO L85 PathProgramCache]: Analyzing trace with hash -349660558, now seen corresponding path program 1 times [2023-11-26 11:45:35,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:35,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304019710] [2023-11-26 11:45:35,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:35,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:35,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:35,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:45:35,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:35,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-26 11:45:35,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:35,863 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2023-11-26 11:45:35,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:35,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304019710] [2023-11-26 11:45:35,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304019710] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:35,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:45:35,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:45:35,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699588795] [2023-11-26 11:45:35,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:35,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:45:35,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:35,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:45:35,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:45:35,867 INFO L87 Difference]: Start difference. First operand 703 states and 936 transitions. Second operand has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 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) [2023-11-26 11:45:36,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:45:36,825 INFO L93 Difference]: Finished difference Result 705 states and 939 transitions. [2023-11-26 11:45:36,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:45:36,826 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 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 108 [2023-11-26 11:45:36,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:45:36,830 INFO L225 Difference]: With dead ends: 705 [2023-11-26 11:45:36,831 INFO L226 Difference]: Without dead ends: 704 [2023-11-26 11:45:36,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:45:36,832 INFO L413 NwaCegarLoop]: 548 mSDtfsCounter, 176 mSDsluCounter, 1002 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 1550 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-26 11:45:36,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 1550 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-26 11:45:36,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2023-11-26 11:45:36,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 702. [2023-11-26 11:45:36,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 606 states have (on average 1.443894389438944) internal successors, (875), 663 states have internal predecessors, (875), 35 states have call successors, (35), 15 states have call predecessors, (35), 12 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-26 11:45:36,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 935 transitions. [2023-11-26 11:45:36,881 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 935 transitions. Word has length 108 [2023-11-26 11:45:36,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:45:36,881 INFO L495 AbstractCegarLoop]: Abstraction has 702 states and 935 transitions. [2023-11-26 11:45:36,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 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) [2023-11-26 11:45:36,882 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 935 transitions. [2023-11-26 11:45:36,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-26 11:45:36,883 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:45:36,884 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:45:36,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-26 11:45:36,884 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 74 more)] === [2023-11-26 11:45:36,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:36,885 INFO L85 PathProgramCache]: Analyzing trace with hash 2045425647, now seen corresponding path program 1 times [2023-11-26 11:45:36,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:36,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802527996] [2023-11-26 11:45:36,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:36,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:37,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat