./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/busybox-1.22.0/ls-incomplete-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/ls-incomplete-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d1800e6a7093aef170e24bf50f0eb7e2646af9a10c241229886d0a1c02e7e0dd --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:04:29,937 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:04:30,054 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-19 08:04:30,069 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:04:30,070 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:04:30,127 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:04:30,129 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:04:30,130 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:04:30,131 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:04:30,138 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:04:30,139 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:04:30,141 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:04:30,141 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:04:30,144 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:04:30,144 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:04:30,145 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:04:30,145 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:04:30,146 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:04:30,146 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:04:30,147 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:04:30,147 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 08:04:30,148 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 08:04:30,149 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:04:30,149 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:04:30,150 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:04:30,151 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:04:30,151 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:04:30,152 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:04:30,152 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:04:30,153 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:04:30,154 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:04:30,156 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:04:30,157 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:04:30,157 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:04:30,157 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:04:30,158 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:04:30,158 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:04:30,158 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:04:30,159 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_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d1800e6a7093aef170e24bf50f0eb7e2646af9a10c241229886d0a1c02e7e0dd [2023-11-19 08:04:30,514 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:04:30,551 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:04:30,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:04:30,556 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:04:30,558 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:04:30,559 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/busybox-1.22.0/ls-incomplete-2.i [2023-11-19 08:04:33,812 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:04:34,397 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:04:34,397 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/sv-benchmarks/c/busybox-1.22.0/ls-incomplete-2.i [2023-11-19 08:04:34,437 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/data/0c1d21544/48031274618a414bb50baa116c1fea16/FLAGfd6ae409e [2023-11-19 08:04:34,456 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/data/0c1d21544/48031274618a414bb50baa116c1fea16 [2023-11-19 08:04:34,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:04:34,467 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:04:34,471 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:04:34,471 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:04:34,476 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:04:34,479 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:04:34" (1/1) ... [2023-11-19 08:04:34,481 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45259048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:34, skipping insertion in model container [2023-11-19 08:04:34,481 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:04:34" (1/1) ... [2023-11-19 08:04:34,611 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:04:38,083 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:04:38,145 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:04:38,505 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:04:38,848 WARN L675 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:04:38,848 WARN L675 CHandler]: The function x2x_utoa is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:04:38,849 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:04:38,849 WARN L675 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:04:38,849 WARN L675 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:04:38,849 WARN L675 CHandler]: The function strstr is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:04:38,849 WARN L675 CHandler]: The function strrchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:04:38,849 WARN L675 CHandler]: The function putchar is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:04:38,850 WARN L675 CHandler]: The function strncpy is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:04:38,850 WARN L675 CHandler]: The function fputs is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:04:38,850 WARN L675 CHandler]: The function strtoul is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:04:38,850 WARN L675 CHandler]: The function ctime is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:04:38,851 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:04:38,859 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:04:38,860 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:38 WrapperNode [2023-11-19 08:04:38,860 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:04:38,862 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:04:38,862 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:04:38,862 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:04:38,870 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:38" (1/1) ... [2023-11-19 08:04:39,000 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:38" (1/1) ... [2023-11-19 08:04:39,235 INFO L138 Inliner]: procedures = 743, calls = 1285, calls flagged for inlining = 67, calls inlined = 65, statements flattened = 4660 [2023-11-19 08:04:39,237 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:04:39,238 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:04:39,238 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:04:39,238 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:04:39,249 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:38" (1/1) ... [2023-11-19 08:04:39,250 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:38" (1/1) ... [2023-11-19 08:04:39,281 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:38" (1/1) ... [2023-11-19 08:04:39,282 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:38" (1/1) ... [2023-11-19 08:04:39,395 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:38" (1/1) ... [2023-11-19 08:04:39,460 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:38" (1/1) ... [2023-11-19 08:04:39,483 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:38" (1/1) ... [2023-11-19 08:04:39,507 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:38" (1/1) ... [2023-11-19 08:04:39,547 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:04:39,548 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:04:39,548 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:04:39,548 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:04:39,549 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:38" (1/1) ... [2023-11-19 08:04:39,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:04:39,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:39,585 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:04:39,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:04:39,634 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-11-19 08:04:39,634 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2023-11-19 08:04:39,635 INFO L130 BoogieDeclarations]: Found specification of procedure ctime [2023-11-19 08:04:39,635 INFO L130 BoogieDeclarations]: Found specification of procedure get_cached [2023-11-19 08:04:39,636 INFO L138 BoogieDeclarations]: Found implementation of procedure get_cached [2023-11-19 08:04:39,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc [2023-11-19 08:04:39,637 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc [2023-11-19 08:04:39,637 INFO L130 BoogieDeclarations]: Found specification of procedure vasprintf [2023-11-19 08:04:39,637 INFO L138 BoogieDeclarations]: Found implementation of procedure vasprintf [2023-11-19 08:04:39,637 INFO L130 BoogieDeclarations]: Found specification of procedure utoa [2023-11-19 08:04:39,637 INFO L138 BoogieDeclarations]: Found implementation of procedure utoa [2023-11-19 08:04:39,638 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-19 08:04:39,638 INFO L130 BoogieDeclarations]: Found specification of procedure print_name [2023-11-19 08:04:39,638 INFO L138 BoogieDeclarations]: Found implementation of procedure print_name [2023-11-19 08:04:39,638 INFO L130 BoogieDeclarations]: Found specification of procedure xrealloc [2023-11-19 08:04:39,639 INFO L138 BoogieDeclarations]: Found implementation of procedure xrealloc [2023-11-19 08:04:39,639 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-11-19 08:04:39,639 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2023-11-19 08:04:39,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 08:04:39,640 INFO L130 BoogieDeclarations]: Found specification of procedure xzalloc [2023-11-19 08:04:39,641 INFO L138 BoogieDeclarations]: Found implementation of procedure xzalloc [2023-11-19 08:04:39,641 INFO L130 BoogieDeclarations]: Found specification of procedure count_dirs [2023-11-19 08:04:39,641 INFO L138 BoogieDeclarations]: Found implementation of procedure count_dirs [2023-11-19 08:04:39,641 INFO L130 BoogieDeclarations]: Found specification of procedure my_stat [2023-11-19 08:04:39,642 INFO L138 BoogieDeclarations]: Found implementation of procedure my_stat [2023-11-19 08:04:39,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 08:04:39,642 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2023-11-19 08:04:39,642 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2023-11-19 08:04:39,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 08:04:39,643 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 08:04:39,643 INFO L130 BoogieDeclarations]: Found specification of procedure dfree [2023-11-19 08:04:39,644 INFO L138 BoogieDeclarations]: Found implementation of procedure dfree [2023-11-19 08:04:39,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 08:04:39,644 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2023-11-19 08:04:39,644 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-19 08:04:39,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:04:39,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 08:04:39,645 INFO L130 BoogieDeclarations]: Found specification of procedure dnsort [2023-11-19 08:04:39,645 INFO L138 BoogieDeclarations]: Found implementation of procedure dnsort [2023-11-19 08:04:39,645 INFO L130 BoogieDeclarations]: Found specification of procedure printable_string [2023-11-19 08:04:39,645 INFO L138 BoogieDeclarations]: Found implementation of procedure printable_string [2023-11-19 08:04:39,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:04:39,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:04:39,645 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-19 08:04:39,646 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-19 08:04:39,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-19 08:04:39,646 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-19 08:04:39,646 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc [2023-11-19 08:04:39,646 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc [2023-11-19 08:04:39,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 08:04:39,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 08:04:39,647 INFO L130 BoogieDeclarations]: Found specification of procedure bb_simple_perror_msg [2023-11-19 08:04:39,647 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_simple_perror_msg [2023-11-19 08:04:39,647 INFO L130 BoogieDeclarations]: Found specification of procedure get_cached_groupname [2023-11-19 08:04:39,647 INFO L138 BoogieDeclarations]: Found implementation of procedure get_cached_groupname [2023-11-19 08:04:39,648 INFO L130 BoogieDeclarations]: Found specification of procedure sort_and_display_files [2023-11-19 08:04:39,648 INFO L138 BoogieDeclarations]: Found implementation of procedure sort_and_display_files [2023-11-19 08:04:39,649 INFO L130 BoogieDeclarations]: Found specification of procedure stat [2023-11-19 08:04:39,649 INFO L138 BoogieDeclarations]: Found implementation of procedure stat [2023-11-19 08:04:39,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 08:04:39,650 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 08:04:39,650 INFO L130 BoogieDeclarations]: Found specification of procedure fgcolor [2023-11-19 08:04:39,650 INFO L138 BoogieDeclarations]: Found implementation of procedure fgcolor [2023-11-19 08:04:39,650 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 08:04:39,651 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 08:04:39,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 08:04:39,651 INFO L130 BoogieDeclarations]: Found specification of procedure splitdnarray [2023-11-19 08:04:39,651 INFO L138 BoogieDeclarations]: Found implementation of procedure splitdnarray [2023-11-19 08:04:39,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 08:04:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure bold [2023-11-19 08:04:39,652 INFO L138 BoogieDeclarations]: Found implementation of procedure bold [2023-11-19 08:04:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 08:04:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure append_char [2023-11-19 08:04:39,652 INFO L138 BoogieDeclarations]: Found implementation of procedure append_char [2023-11-19 08:04:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure scan_and_display_dirs_recur [2023-11-19 08:04:39,653 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_and_display_dirs_recur [2023-11-19 08:04:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure lstat [2023-11-19 08:04:39,653 INFO L138 BoogieDeclarations]: Found implementation of procedure lstat [2023-11-19 08:04:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 08:04:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure wh_helper [2023-11-19 08:04:39,654 INFO L138 BoogieDeclarations]: Found implementation of procedure wh_helper [2023-11-19 08:04:39,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 08:04:39,654 INFO L130 BoogieDeclarations]: Found specification of procedure bb_perror_msg [2023-11-19 08:04:39,655 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_perror_msg [2023-11-19 08:04:39,655 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2023-11-19 08:04:39,655 INFO L130 BoogieDeclarations]: Found specification of procedure isatty [2023-11-19 08:04:39,655 INFO L138 BoogieDeclarations]: Found implementation of procedure isatty [2023-11-19 08:04:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure dnalloc [2023-11-19 08:04:39,656 INFO L138 BoogieDeclarations]: Found implementation of procedure dnalloc [2023-11-19 08:04:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2023-11-19 08:04:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2023-11-19 08:04:39,657 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2023-11-19 08:04:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:04:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2023-11-19 08:04:40,489 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:04:40,493 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:04:45,364 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:04:45,385 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:04:45,386 INFO L302 CfgBuilder]: Removed 66 assume(true) statements. [2023-11-19 08:04:45,397 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:04:45 BoogieIcfgContainer [2023-11-19 08:04:45,397 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:04:45,401 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:04:45,401 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:04:45,404 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:04:45,405 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:04:34" (1/3) ... [2023-11-19 08:04:45,405 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40b76566 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:04:45, skipping insertion in model container [2023-11-19 08:04:45,406 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:38" (2/3) ... [2023-11-19 08:04:45,406 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40b76566 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:04:45, skipping insertion in model container [2023-11-19 08:04:45,406 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:04:45" (3/3) ... [2023-11-19 08:04:45,407 INFO L112 eAbstractionObserver]: Analyzing ICFG ls-incomplete-2.i [2023-11-19 08:04:45,431 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:04:45,431 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 127 error locations. [2023-11-19 08:04:45,538 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:04:45,549 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;@5d72a027, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:04:45,550 INFO L358 AbstractCegarLoop]: Starting to check reachability of 127 error locations. [2023-11-19 08:04:45,564 INFO L276 IsEmpty]: Start isEmpty. Operand has 1498 states, 1234 states have (on average 1.660453808752026) internal successors, (2049), 1370 states have internal predecessors, (2049), 104 states have call successors, (104), 33 states have call predecessors, (104), 33 states have return successors, (104), 103 states have call predecessors, (104), 104 states have call successors, (104) [2023-11-19 08:04:45,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 08:04:45,572 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:45,573 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-19 08:04:45,576 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [printable_stringErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, printable_stringErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, printable_stringErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 124 more)] === [2023-11-19 08:04:45,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:45,584 INFO L85 PathProgramCache]: Analyzing trace with hash 87428805, now seen corresponding path program 1 times [2023-11-19 08:04:45,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:45,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752368804] [2023-11-19 08:04:45,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:45,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:45,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:46,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:04:46,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:46,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752368804] [2023-11-19 08:04:46,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752368804] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:46,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:46,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:04:46,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733468458] [2023-11-19 08:04:46,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:46,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:04:46,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:46,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:04:46,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:04:46,372 INFO L87 Difference]: Start difference. First operand has 1498 states, 1234 states have (on average 1.660453808752026) internal successors, (2049), 1370 states have internal predecessors, (2049), 104 states have call successors, (104), 33 states have call predecessors, (104), 33 states have return successors, (104), 103 states have call predecessors, (104), 104 states have call successors, (104) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:04:46,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:46,641 INFO L93 Difference]: Finished difference Result 2936 states and 4519 transitions. [2023-11-19 08:04:46,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:04:46,647 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-19 08:04:46,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:46,670 INFO L225 Difference]: With dead ends: 2936 [2023-11-19 08:04:46,670 INFO L226 Difference]: Without dead ends: 1434 [2023-11-19 08:04:46,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:04:46,696 INFO L413 NwaCegarLoop]: 2068 mSDtfsCounter, 1 mSDsluCounter, 2062 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4130 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:46,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4130 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:04:46,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1434 states. [2023-11-19 08:04:46,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1434 to 1434. [2023-11-19 08:04:46,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1434 states, 1193 states have (on average 1.5725062866722548) internal successors, (1876), 1315 states have internal predecessors, (1876), 97 states have call successors, (97), 32 states have call predecessors, (97), 31 states have return successors, (90), 89 states have call predecessors, (90), 90 states have call successors, (90) [2023-11-19 08:04:46,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1434 states to 1434 states and 2063 transitions. [2023-11-19 08:04:46,833 INFO L78 Accepts]: Start accepts. Automaton has 1434 states and 2063 transitions. Word has length 4 [2023-11-19 08:04:46,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:46,833 INFO L495 AbstractCegarLoop]: Abstraction has 1434 states and 2063 transitions. [2023-11-19 08:04:46,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:04:46,834 INFO L276 IsEmpty]: Start isEmpty. Operand 1434 states and 2063 transitions. [2023-11-19 08:04:46,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 08:04:46,834 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:46,834 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-19 08:04:46,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 08:04:46,835 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [printable_stringErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, printable_stringErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, printable_stringErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 124 more)] === [2023-11-19 08:04:46,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:46,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1844183237, now seen corresponding path program 1 times [2023-11-19 08:04:46,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:46,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721409476] [2023-11-19 08:04:46,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:46,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:46,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:47,117 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:04:47,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:47,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721409476] [2023-11-19 08:04:47,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721409476] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:04:47,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467170606] [2023-11-19 08:04:47,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:47,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:47,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:47,124 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:04:47,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 08:04:47,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:47,850 INFO L262 TraceCheckSpWp]: Trace formula consists of 1073 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 08:04:47,856 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:47,902 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:04:47,903 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:04:47,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [467170606] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:47,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 08:04:47,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-19 08:04:47,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343804960] [2023-11-19 08:04:47,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:47,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:04:47,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:47,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:04:47,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:04:47,907 INFO L87 Difference]: Start difference. First operand 1434 states and 2063 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:04:48,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:48,015 INFO L93 Difference]: Finished difference Result 1434 states and 2063 transitions. [2023-11-19 08:04:48,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:04:48,016 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-19 08:04:48,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:48,028 INFO L225 Difference]: With dead ends: 1434 [2023-11-19 08:04:48,029 INFO L226 Difference]: Without dead ends: 1433 [2023-11-19 08:04:48,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:04:48,031 INFO L413 NwaCegarLoop]: 2054 mSDtfsCounter, 5 mSDsluCounter, 2052 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 4106 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:48,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 4106 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:04:48,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1433 states. [2023-11-19 08:04:48,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1433 to 1433. [2023-11-19 08:04:48,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1433 states, 1193 states have (on average 1.5716680637049456) internal successors, (1875), 1314 states have internal predecessors, (1875), 97 states have call successors, (97), 32 states have call predecessors, (97), 31 states have return successors, (90), 89 states have call predecessors, (90), 90 states have call successors, (90) [2023-11-19 08:04:48,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1433 states to 1433 states and 2062 transitions. [2023-11-19 08:04:48,108 INFO L78 Accepts]: Start accepts. Automaton has 1433 states and 2062 transitions. Word has length 7 [2023-11-19 08:04:48,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:48,108 INFO L495 AbstractCegarLoop]: Abstraction has 1433 states and 2062 transitions. [2023-11-19 08:04:48,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:04:48,109 INFO L276 IsEmpty]: Start isEmpty. Operand 1433 states and 2062 transitions. [2023-11-19 08:04:48,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 08:04:48,110 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:48,110 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2023-11-19 08:04:48,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:48,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:48,334 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [printable_stringErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, printable_stringErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, printable_stringErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 124 more)] === [2023-11-19 08:04:48,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:48,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1335108354, now seen corresponding path program 1 times [2023-11-19 08:04:48,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:48,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829059355] [2023-11-19 08:04:48,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:48,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:48,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:48,546 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 08:04:48,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:48,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829059355] [2023-11-19 08:04:48,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829059355] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:48,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:48,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:04:48,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814701706] [2023-11-19 08:04:48,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:48,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:04:48,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:48,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:04:48,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:04:48,549 INFO L87 Difference]: Start difference. First operand 1433 states and 2062 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:04:48,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:48,625 INFO L93 Difference]: Finished difference Result 1433 states and 2062 transitions. [2023-11-19 08:04:48,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:04:48,626 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-19 08:04:48,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:48,637 INFO L225 Difference]: With dead ends: 1433 [2023-11-19 08:04:48,637 INFO L226 Difference]: Without dead ends: 1432 [2023-11-19 08:04:48,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:04:48,639 INFO L413 NwaCegarLoop]: 2055 mSDtfsCounter, 0 mSDsluCounter, 2052 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4107 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:48,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4107 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:04:48,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2023-11-19 08:04:48,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1430. [2023-11-19 08:04:48,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1430 states, 1191 states have (on average 1.5717884130982367) internal successors, (1872), 1311 states have internal predecessors, (1872), 97 states have call successors, (97), 32 states have call predecessors, (97), 31 states have return successors, (90), 89 states have call predecessors, (90), 90 states have call successors, (90) [2023-11-19 08:04:48,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1430 states to 1430 states and 2059 transitions. [2023-11-19 08:04:48,712 INFO L78 Accepts]: Start accepts. Automaton has 1430 states and 2059 transitions. Word has length 8 [2023-11-19 08:04:48,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:48,712 INFO L495 AbstractCegarLoop]: Abstraction has 1430 states and 2059 transitions. [2023-11-19 08:04:48,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:04:48,712 INFO L276 IsEmpty]: Start isEmpty. Operand 1430 states and 2059 transitions. [2023-11-19 08:04:48,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 08:04:48,713 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:48,713 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:48,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 08:04:48,713 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [printable_stringErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, printable_stringErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, printable_stringErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 124 more)] === [2023-11-19 08:04:48,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:48,714 INFO L85 PathProgramCache]: Analyzing trace with hash 504174813, now seen corresponding path program 1 times [2023-11-19 08:04:48,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:48,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032055086] [2023-11-19 08:04:48,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:48,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:48,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:49,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-19 08:04:49,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:49,077 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:04:49,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:49,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032055086] [2023-11-19 08:04:49,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032055086] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:04:49,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1280602714] [2023-11-19 08:04:49,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:49,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:49,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:49,097 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:04:49,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 08:04:49,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:49,733 INFO L262 TraceCheckSpWp]: Trace formula consists of 1090 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 08:04:49,735 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:49,752 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 08:04:49,752 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:04:49,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1280602714] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:49,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 08:04:49,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-19 08:04:49,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072074113] [2023-11-19 08:04:49,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:49,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:04:49,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:49,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:04:49,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:04:49,755 INFO L87 Difference]: Start difference. First operand 1430 states and 2059 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:04:49,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:49,840 INFO L93 Difference]: Finished difference Result 1430 states and 2059 transitions. [2023-11-19 08:04:49,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:04:49,841 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2023-11-19 08:04:49,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:49,851 INFO L225 Difference]: With dead ends: 1430 [2023-11-19 08:04:49,851 INFO L226 Difference]: Without dead ends: 1428 [2023-11-19 08:04:49,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:04:49,855 INFO L413 NwaCegarLoop]: 2046 mSDtfsCounter, 713 mSDsluCounter, 1317 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 3363 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:49,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [736 Valid, 3363 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:04:49,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2023-11-19 08:04:49,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1428. [2023-11-19 08:04:49,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1191 states have (on average 1.5701091519731318) internal successors, (1870), 1309 states have internal predecessors, (1870), 97 states have call successors, (97), 32 states have call predecessors, (97), 31 states have return successors, (90), 89 states have call predecessors, (90), 90 states have call successors, (90) [2023-11-19 08:04:49,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 2057 transitions. [2023-11-19 08:04:49,918 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 2057 transitions. Word has length 13 [2023-11-19 08:04:49,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:49,920 INFO L495 AbstractCegarLoop]: Abstraction has 1428 states and 2057 transitions. [2023-11-19 08:04:49,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:04:49,920 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 2057 transitions. [2023-11-19 08:04:49,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 08:04:49,921 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:49,921 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:49,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:50,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:50,132 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [printable_stringErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, printable_stringErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, printable_stringErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 124 more)] === [2023-11-19 08:04:50,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:50,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1550447117, now seen corresponding path program 1 times [2023-11-19 08:04:50,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:50,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433257871] [2023-11-19 08:04:50,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:50,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:50,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:50,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-19 08:04:50,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:50,416 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:04:50,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:50,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433257871] [2023-11-19 08:04:50,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433257871] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:04:50,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [433219991] [2023-11-19 08:04:50,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:50,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:50,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:50,419 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:04:50,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 08:04:51,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:51,079 INFO L262 TraceCheckSpWp]: Trace formula consists of 1091 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 08:04:51,081 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:51,101 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:04:51,102 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:04:51,138 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:04:51,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [433219991] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:04:51,138 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 08:04:51,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-19 08:04:51,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557410555] [2023-11-19 08:04:51,139 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 08:04:51,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 08:04:51,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:51,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 08:04:51,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-19 08:04:51,144 INFO L87 Difference]: Start difference. First operand 1428 states and 2057 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 08:04:51,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:51,271 INFO L93 Difference]: Finished difference Result 2859 states and 4119 transitions. [2023-11-19 08:04:51,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 08:04:51,272 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2023-11-19 08:04:51,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:51,283 INFO L225 Difference]: With dead ends: 2859 [2023-11-19 08:04:51,283 INFO L226 Difference]: Without dead ends: 1437 [2023-11-19 08:04:51,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-19 08:04:51,291 INFO L413 NwaCegarLoop]: 2053 mSDtfsCounter, 4 mSDsluCounter, 4100 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 6153 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:51,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 6153 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:04:51,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1437 states. [2023-11-19 08:04:51,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1437 to 1437. [2023-11-19 08:04:51,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1437 states, 1200 states have (on average 1.5658333333333334) internal successors, (1879), 1318 states have internal predecessors, (1879), 97 states have call successors, (97), 32 states have call predecessors, (97), 31 states have return successors, (90), 89 states have call predecessors, (90), 90 states have call successors, (90) [2023-11-19 08:04:51,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1437 states to 1437 states and 2066 transitions. [2023-11-19 08:04:51,351 INFO L78 Accepts]: Start accepts. Automaton has 1437 states and 2066 transitions. Word has length 14 [2023-11-19 08:04:51,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:51,351 INFO L495 AbstractCegarLoop]: Abstraction has 1437 states and 2066 transitions. [2023-11-19 08:04:51,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 08:04:51,352 INFO L276 IsEmpty]: Start isEmpty. Operand 1437 states and 2066 transitions. [2023-11-19 08:04:51,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-19 08:04:51,353 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:51,353 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:51,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:51,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:51,568 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [printable_stringErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, printable_stringErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, printable_stringErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 124 more)] === [2023-11-19 08:04:51,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:51,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1603977203, now seen corresponding path program 2 times [2023-11-19 08:04:51,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:51,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826822220] [2023-11-19 08:04:51,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:51,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:51,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:51,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 08:04:51,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:52,002 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:04:52,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:52,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826822220] [2023-11-19 08:04:52,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826822220] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:04:52,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [462904604] [2023-11-19 08:04:52,003 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 08:04:52,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:52,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:52,005 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:04:52,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 08:04:52,631 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-19 08:04:52,631 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 08:04:52,637 INFO L262 TraceCheckSpWp]: Trace formula consists of 1072 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 08:04:52,639 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:52,716 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-19 08:04:52,718 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:04:52,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [462904604] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:52,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 08:04:52,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2023-11-19 08:04:52,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075324252] [2023-11-19 08:04:52,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:52,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:04:52,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:52,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:04:52,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-19 08:04:52,722 INFO L87 Difference]: Start difference. First operand 1437 states and 2066 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:04:52,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:52,952 INFO L93 Difference]: Finished difference Result 1437 states and 2066 transitions. [2023-11-19 08:04:52,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:04:52,953 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2023-11-19 08:04:52,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:52,964 INFO L225 Difference]: With dead ends: 1437 [2023-11-19 08:04:52,964 INFO L226 Difference]: Without dead ends: 1435 [2023-11-19 08:04:52,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-19 08:04:52,966 INFO L413 NwaCegarLoop]: 2034 mSDtfsCounter, 712 mSDsluCounter, 5350 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 735 SdHoareTripleChecker+Valid, 7384 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:52,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [735 Valid, 7384 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:04:52,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1435 states. [2023-11-19 08:04:53,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1435 to 1435. [2023-11-19 08:04:53,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1435 states, 1200 states have (on average 1.5641666666666667) internal successors, (1877), 1316 states have internal predecessors, (1877), 97 states have call successors, (97), 32 states have call predecessors, (97), 31 states have return successors, (90), 89 states have call predecessors, (90), 90 states have call successors, (90) [2023-11-19 08:04:53,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1435 states to 1435 states and 2064 transitions. [2023-11-19 08:04:53,036 INFO L78 Accepts]: Start accepts. Automaton has 1435 states and 2064 transitions. Word has length 23 [2023-11-19 08:04:53,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:53,037 INFO L495 AbstractCegarLoop]: Abstraction has 1435 states and 2064 transitions. [2023-11-19 08:04:53,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:04:53,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1435 states and 2064 transitions. [2023-11-19 08:04:53,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-19 08:04:53,038 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:53,039 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:53,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:53,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:53,256 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [printable_stringErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, printable_stringErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, printable_stringErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 124 more)] === [2023-11-19 08:04:53,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:53,256 INFO L85 PathProgramCache]: Analyzing trace with hash 2146742058, now seen corresponding path program 1 times [2023-11-19 08:04:53,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:53,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917872730] [2023-11-19 08:04:53,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:53,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:53,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:53,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 08:04:53,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:53,550 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-19 08:04:53,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:53,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917872730] [2023-11-19 08:04:53,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917872730] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:53,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:53,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:04:53,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973062282] [2023-11-19 08:04:53,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:53,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:04:53,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:53,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:04:53,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:04:53,553 INFO L87 Difference]: Start difference. First operand 1435 states and 2064 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:04:53,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:53,654 INFO L93 Difference]: Finished difference Result 2852 states and 4111 transitions. [2023-11-19 08:04:53,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:04:53,655 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2023-11-19 08:04:53,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:53,666 INFO L225 Difference]: With dead ends: 2852 [2023-11-19 08:04:53,666 INFO L226 Difference]: Without dead ends: 1438 [2023-11-19 08:04:53,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:04:53,673 INFO L413 NwaCegarLoop]: 2051 mSDtfsCounter, 1 mSDsluCounter, 2045 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4096 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:53,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4096 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:04:53,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1438 states. [2023-11-19 08:04:53,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1438 to 1438. [2023-11-19 08:04:53,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1438 states, 1203 states have (on average 1.5627597672485454) internal successors, (1880), 1319 states have internal predecessors, (1880), 97 states have call successors, (97), 32 states have call predecessors, (97), 31 states have return successors, (90), 89 states have call predecessors, (90), 90 states have call successors, (90) [2023-11-19 08:04:53,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1438 states to 1438 states and 2067 transitions. [2023-11-19 08:04:53,735 INFO L78 Accepts]: Start accepts. Automaton has 1438 states and 2067 transitions. Word has length 28 [2023-11-19 08:04:53,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:53,736 INFO L495 AbstractCegarLoop]: Abstraction has 1438 states and 2067 transitions. [2023-11-19 08:04:53,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:04:53,736 INFO L276 IsEmpty]: Start isEmpty. Operand 1438 states and 2067 transitions. [2023-11-19 08:04:53,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-19 08:04:53,737 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:53,737 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:53,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 08:04:53,738 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [printable_stringErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, printable_stringErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, printable_stringErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 124 more)] === [2023-11-19 08:04:53,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:53,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1532481058, now seen corresponding path program 1 times [2023-11-19 08:04:53,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:53,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174838310] [2023-11-19 08:04:53,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:53,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:53,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:54,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 08:04:54,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:54,107 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-19 08:04:54,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:54,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174838310] [2023-11-19 08:04:54,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174838310] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:04:54,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1139754929] [2023-11-19 08:04:54,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:54,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:54,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:54,110 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:04:54,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 08:04:54,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:54,810 INFO L262 TraceCheckSpWp]: Trace formula consists of 1268 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 08:04:54,813 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:54,916 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 08:04:54,917 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:04:55,049 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 08:04:55,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1139754929] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:04:55,049 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 08:04:55,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2023-11-19 08:04:55,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280394403] [2023-11-19 08:04:55,050 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 08:04:55,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-19 08:04:55,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:55,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-19 08:04:55,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-19 08:04:55,052 INFO L87 Difference]: Start difference. First operand 1438 states and 2067 transitions. Second operand has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 08:04:55,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:55,341 INFO L93 Difference]: Finished difference Result 2878 states and 4142 transitions. [2023-11-19 08:04:55,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-19 08:04:55,342 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2023-11-19 08:04:55,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:55,352 INFO L225 Difference]: With dead ends: 2878 [2023-11-19 08:04:55,352 INFO L226 Difference]: Without dead ends: 1455 [2023-11-19 08:04:55,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-19 08:04:55,359 INFO L413 NwaCegarLoop]: 2045 mSDtfsCounter, 7 mSDsluCounter, 12252 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 14297 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:55,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 14297 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:04:55,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1455 states. [2023-11-19 08:04:55,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1455 to 1455. [2023-11-19 08:04:55,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1455 states, 1221 states have (on average 1.5536445536445536) internal successors, (1897), 1336 states have internal predecessors, (1897), 97 states have call successors, (97), 32 states have call predecessors, (97), 31 states have return successors, (90), 89 states have call predecessors, (90), 90 states have call successors, (90) [2023-11-19 08:04:55,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1455 states to 1455 states and 2084 transitions. [2023-11-19 08:04:55,423 INFO L78 Accepts]: Start accepts. Automaton has 1455 states and 2084 transitions. Word has length 31 [2023-11-19 08:04:55,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:55,423 INFO L495 AbstractCegarLoop]: Abstraction has 1455 states and 2084 transitions. [2023-11-19 08:04:55,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 08:04:55,424 INFO L276 IsEmpty]: Start isEmpty. Operand 1455 states and 2084 transitions. [2023-11-19 08:04:55,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-19 08:04:55,428 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:55,428 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:55,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:55,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-19 08:04:55,644 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [printable_stringErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, printable_stringErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, printable_stringErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 124 more)] === [2023-11-19 08:04:55,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:55,645 INFO L85 PathProgramCache]: Analyzing trace with hash 54147750, now seen corresponding path program 1 times [2023-11-19 08:04:55,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:55,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118773809] [2023-11-19 08:04:55,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:55,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:55,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:55,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 08:04:55,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:55,967 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-19 08:04:55,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:55,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118773809] [2023-11-19 08:04:55,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118773809] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:55,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:55,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:04:55,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224358986] [2023-11-19 08:04:55,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:55,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:04:55,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:55,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:04:55,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:04:55,970 INFO L87 Difference]: Start difference. First operand 1455 states and 2084 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:04:56,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:56,067 INFO L93 Difference]: Finished difference Result 1469 states and 2100 transitions. [2023-11-19 08:04:56,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:04:56,067 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2023-11-19 08:04:56,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:56,078 INFO L225 Difference]: With dead ends: 1469 [2023-11-19 08:04:56,078 INFO L226 Difference]: Without dead ends: 1467 [2023-11-19 08:04:56,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:04:56,080 INFO L413 NwaCegarLoop]: 2048 mSDtfsCounter, 3 mSDsluCounter, 2043 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 4091 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:56,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 4091 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:04:56,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1467 states. [2023-11-19 08:04:56,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1467 to 1465. [2023-11-19 08:04:56,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1465 states, 1231 states have (on average 1.5515840779853778) internal successors, (1910), 1346 states have internal predecessors, (1910), 97 states have call successors, (97), 32 states have call predecessors, (97), 31 states have return successors, (90), 89 states have call predecessors, (90), 90 states have call successors, (90) [2023-11-19 08:04:56,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1465 states to 1465 states and 2097 transitions. [2023-11-19 08:04:56,139 INFO L78 Accepts]: Start accepts. Automaton has 1465 states and 2097 transitions. Word has length 50 [2023-11-19 08:04:56,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:56,140 INFO L495 AbstractCegarLoop]: Abstraction has 1465 states and 2097 transitions. [2023-11-19 08:04:56,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:04:56,141 INFO L276 IsEmpty]: Start isEmpty. Operand 1465 states and 2097 transitions. [2023-11-19 08:04:56,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-19 08:04:56,142 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:56,142 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:56,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 08:04:56,142 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [printable_stringErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, printable_stringErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, printable_stringErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 124 more)] === [2023-11-19 08:04:56,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:56,143 INFO L85 PathProgramCache]: Analyzing trace with hash 54149479, now seen corresponding path program 1 times [2023-11-19 08:04:56,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:56,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900866723] [2023-11-19 08:04:56,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:56,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:56,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:56,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 08:04:56,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:56,401 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-19 08:04:56,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:56,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900866723] [2023-11-19 08:04:56,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900866723] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:56,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:56,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:04:56,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158566101] [2023-11-19 08:04:56,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:56,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:04:56,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:56,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:04:56,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:04:56,404 INFO L87 Difference]: Start difference. First operand 1465 states and 2097 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:04:56,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:56,466 INFO L93 Difference]: Finished difference Result 1465 states and 2097 transitions. [2023-11-19 08:04:56,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:04:56,467 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2023-11-19 08:04:56,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:56,477 INFO L225 Difference]: With dead ends: 1465 [2023-11-19 08:04:56,477 INFO L226 Difference]: Without dead ends: 1464 [2023-11-19 08:04:56,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:04:56,479 INFO L413 NwaCegarLoop]: 2049 mSDtfsCounter, 0 mSDsluCounter, 2045 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4094 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:56,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4094 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:04:56,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2023-11-19 08:04:56,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 1460. [2023-11-19 08:04:56,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1460 states, 1227 states have (on average 1.5517522412387939) internal successors, (1904), 1341 states have internal predecessors, (1904), 97 states have call successors, (97), 32 states have call predecessors, (97), 31 states have return successors, (90), 89 states have call predecessors, (90), 90 states have call successors, (90) [2023-11-19 08:04:56,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 2091 transitions. [2023-11-19 08:04:56,537 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 2091 transitions. Word has length 50 [2023-11-19 08:04:56,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:56,538 INFO L495 AbstractCegarLoop]: Abstraction has 1460 states and 2091 transitions. [2023-11-19 08:04:56,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:04:56,538 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 2091 transitions. [2023-11-19 08:04:56,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 08:04:56,539 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:56,540 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:56,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 08:04:56,540 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [printable_stringErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, printable_stringErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, printable_stringErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 124 more)] === [2023-11-19 08:04:56,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:56,541 INFO L85 PathProgramCache]: Analyzing trace with hash -371181873, now seen corresponding path program 1 times [2023-11-19 08:04:56,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:56,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556656295] [2023-11-19 08:04:56,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:56,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:56,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:57,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 08:04:57,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:57,056 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-19 08:04:57,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:57,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556656295] [2023-11-19 08:04:57,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556656295] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:04:57,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147376400] [2023-11-19 08:04:57,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:57,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:57,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:57,059 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:04:57,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 08:04:57,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:57,795 INFO L262 TraceCheckSpWp]: Trace formula consists of 1439 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 08:04:57,799 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:57,819 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-19 08:04:57,820 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:04:57,848 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-19 08:04:57,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [147376400] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:04:57,849 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 08:04:57,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-19 08:04:57,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465603101] [2023-11-19 08:04:57,850 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 08:04:57,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 08:04:57,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:57,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 08:04:57,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-19 08:04:57,851 INFO L87 Difference]: Start difference. First operand 1460 states and 2091 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:04:57,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:57,987 INFO L93 Difference]: Finished difference Result 2894 states and 4158 transitions. [2023-11-19 08:04:57,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 08:04:57,988 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 58 [2023-11-19 08:04:57,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:57,998 INFO L225 Difference]: With dead ends: 2894 [2023-11-19 08:04:57,998 INFO L226 Difference]: Without dead ends: 1478 [2023-11-19 08:04:58,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-19 08:04:58,004 INFO L413 NwaCegarLoop]: 2049 mSDtfsCounter, 4 mSDsluCounter, 8180 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 10229 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:58,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 10229 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:04:58,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1478 states. [2023-11-19 08:04:58,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1478 to 1478. [2023-11-19 08:04:58,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1478 states, 1245 states have (on average 1.5437751004016065) internal successors, (1922), 1359 states have internal predecessors, (1922), 97 states have call successors, (97), 32 states have call predecessors, (97), 31 states have return successors, (90), 89 states have call predecessors, (90), 90 states have call successors, (90) [2023-11-19 08:04:58,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1478 states to 1478 states and 2109 transitions. [2023-11-19 08:04:58,056 INFO L78 Accepts]: Start accepts. Automaton has 1478 states and 2109 transitions. Word has length 58 [2023-11-19 08:04:58,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:58,056 INFO L495 AbstractCegarLoop]: Abstraction has 1478 states and 2109 transitions. [2023-11-19 08:04:58,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:04:58,057 INFO L276 IsEmpty]: Start isEmpty. Operand 1478 states and 2109 transitions. [2023-11-19 08:04:58,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-19 08:04:58,058 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:58,058 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:58,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:58,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-19 08:04:58,278 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [printable_stringErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, printable_stringErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, printable_stringErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 124 more)] === [2023-11-19 08:04:58,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:58,278 INFO L85 PathProgramCache]: Analyzing trace with hash -790134423, now seen corresponding path program 1 times [2023-11-19 08:04:58,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:58,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733853693] [2023-11-19 08:04:58,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:58,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:58,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:59,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 08:04:59,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:59,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-19 08:04:59,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:59,185 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-19 08:04:59,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:59,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733853693] [2023-11-19 08:04:59,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733853693] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:59,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:59,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 08:04:59,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538010278] [2023-11-19 08:04:59,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:59,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:04:59,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:59,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:04:59,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:04:59,188 INFO L87 Difference]: Start difference. First operand 1478 states and 2109 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 08:05:03,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:05:03,664 INFO L93 Difference]: Finished difference Result 3132 states and 4545 transitions. [2023-11-19 08:05:03,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:05:03,665 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 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 67 [2023-11-19 08:05:03,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:05:03,677 INFO L225 Difference]: With dead ends: 3132 [2023-11-19 08:05:03,677 INFO L226 Difference]: Without dead ends: 1775 [2023-11-19 08:05:03,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-19 08:05:03,684 INFO L413 NwaCegarLoop]: 1854 mSDtfsCounter, 2886 mSDsluCounter, 3133 mSDsCounter, 0 mSdLazyCounter, 1045 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2939 SdHoareTripleChecker+Valid, 4987 SdHoareTripleChecker+Invalid, 1249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 1045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-11-19 08:05:03,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2939 Valid, 4987 Invalid, 1249 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [204 Valid, 1045 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-11-19 08:05:03,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1775 states. [2023-11-19 08:05:03,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1775 to 1478. [2023-11-19 08:05:03,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1478 states, 1245 states have (on average 1.5429718875502008) internal successors, (1921), 1359 states have internal predecessors, (1921), 97 states have call successors, (97), 32 states have call predecessors, (97), 31 states have return successors, (90), 89 states have call predecessors, (90), 90 states have call successors, (90) [2023-11-19 08:05:03,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1478 states to 1478 states and 2108 transitions. [2023-11-19 08:05:03,758 INFO L78 Accepts]: Start accepts. Automaton has 1478 states and 2108 transitions. Word has length 67 [2023-11-19 08:05:03,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:05:03,759 INFO L495 AbstractCegarLoop]: Abstraction has 1478 states and 2108 transitions. [2023-11-19 08:05:03,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 08:05:03,759 INFO L276 IsEmpty]: Start isEmpty. Operand 1478 states and 2108 transitions. [2023-11-19 08:05:03,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-19 08:05:03,761 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:05:03,761 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:05:03,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-19 08:05:03,761 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [printable_stringErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, printable_stringErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, printable_stringErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 124 more)] === [2023-11-19 08:05:03,762 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:03,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1210753741, now seen corresponding path program 1 times [2023-11-19 08:05:03,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:05:03,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761752849] [2023-11-19 08:05:03,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:03,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:05:03,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:04,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 08:05:04,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:04,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-19 08:05:04,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:04,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-19 08:05:04,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:04,256 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-19 08:05:04,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:05:04,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761752849] [2023-11-19 08:05:04,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761752849] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:05:04,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:05:04,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:05:04,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633293156] [2023-11-19 08:05:04,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:05:04,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:05:04,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:05:04,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:05:04,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:05:04,259 INFO L87 Difference]: Start difference. First operand 1478 states and 2108 transitions. Second operand has 5 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 08:05:07,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 08:05:10,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:05:10,853 INFO L93 Difference]: Finished difference Result 2117 states and 3098 transitions. [2023-11-19 08:05:10,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:05:10,854 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 76 [2023-11-19 08:05:10,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:05:10,868 INFO L225 Difference]: With dead ends: 2117 [2023-11-19 08:05:10,869 INFO L226 Difference]: Without dead ends: 2115 [2023-11-19 08:05:10,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:05:10,871 INFO L413 NwaCegarLoop]: 2237 mSDtfsCounter, 1062 mSDsluCounter, 5096 mSDsCounter, 0 mSdLazyCounter, 1729 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1080 SdHoareTripleChecker+Valid, 7333 SdHoareTripleChecker+Invalid, 1865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 1729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-11-19 08:05:10,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1080 Valid, 7333 Invalid, 1865 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [136 Valid, 1729 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2023-11-19 08:05:10,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2115 states. [2023-11-19 08:05:10,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2115 to 1482. [2023-11-19 08:05:10,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1482 states, 1249 states have (on average 1.5420336269015211) internal successors, (1926), 1363 states have internal predecessors, (1926), 97 states have call successors, (97), 32 states have call predecessors, (97), 31 states have return successors, (90), 89 states have call predecessors, (90), 90 states have call successors, (90) [2023-11-19 08:05:10,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1482 states to 1482 states and 2113 transitions. [2023-11-19 08:05:10,947 INFO L78 Accepts]: Start accepts. Automaton has 1482 states and 2113 transitions. Word has length 76 [2023-11-19 08:05:10,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:05:10,947 INFO L495 AbstractCegarLoop]: Abstraction has 1482 states and 2113 transitions. [2023-11-19 08:05:10,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 08:05:10,948 INFO L276 IsEmpty]: Start isEmpty. Operand 1482 states and 2113 transitions. [2023-11-19 08:05:10,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-19 08:05:10,949 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:05:10,949 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, 1] [2023-11-19 08:05:10,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-19 08:05:10,949 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [printable_stringErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, printable_stringErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, printable_stringErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 124 more)] === [2023-11-19 08:05:10,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:10,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1955105693, now seen corresponding path program 2 times [2023-11-19 08:05:10,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:05:10,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400482755] [2023-11-19 08:05:10,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:10,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:05:11,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:11,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 08:05:11,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:11,424 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-11-19 08:05:11,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:05:11,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400482755] [2023-11-19 08:05:11,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400482755] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:05:11,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2000336321] [2023-11-19 08:05:11,425 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 08:05:11,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:05:11,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:05:11,427 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:05:11,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-19 08:05:12,394 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-19 08:05:12,394 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 08:05:12,405 INFO L262 TraceCheckSpWp]: Trace formula consists of 1553 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 08:05:12,410 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:05:12,499 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 58 proven. 22 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2023-11-19 08:05:12,499 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:05:12,628 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 58 proven. 22 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2023-11-19 08:05:12,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2000336321] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:05:12,629 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 08:05:12,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2023-11-19 08:05:12,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885510233] [2023-11-19 08:05:12,629 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 08:05:12,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-19 08:05:12,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:05:12,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-19 08:05:12,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-19 08:05:12,631 INFO L87 Difference]: Start difference. First operand 1482 states and 2113 transitions. Second operand has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:05:13,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:05:13,244 INFO L93 Difference]: Finished difference Result 2947 states and 4218 transitions. [2023-11-19 08:05:13,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-19 08:05:13,245 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 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 76 [2023-11-19 08:05:13,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:05:13,256 INFO L225 Difference]: With dead ends: 2947 [2023-11-19 08:05:13,256 INFO L226 Difference]: Without dead ends: 1518 [2023-11-19 08:05:13,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=330, Invalid=792, Unknown=0, NotChecked=0, Total=1122 [2023-11-19 08:05:13,263 INFO L413 NwaCegarLoop]: 2045 mSDtfsCounter, 12 mSDsluCounter, 8158 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 10203 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 08:05:13,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 10203 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 08:05:13,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1518 states. [2023-11-19 08:05:13,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1518 to 1517. [2023-11-19 08:05:13,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1517 states, 1285 states have (on average 1.5260700389105057) internal successors, (1961), 1398 states have internal predecessors, (1961), 97 states have call successors, (97), 32 states have call predecessors, (97), 31 states have return successors, (90), 89 states have call predecessors, (90), 90 states have call successors, (90) [2023-11-19 08:05:13,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1517 states to 1517 states and 2148 transitions. [2023-11-19 08:05:13,330 INFO L78 Accepts]: Start accepts. Automaton has 1517 states and 2148 transitions. Word has length 76 [2023-11-19 08:05:13,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:05:13,331 INFO L495 AbstractCegarLoop]: Abstraction has 1517 states and 2148 transitions. [2023-11-19 08:05:13,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:05:13,332 INFO L276 IsEmpty]: Start isEmpty. Operand 1517 states and 2148 transitions. [2023-11-19 08:05:13,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-19 08:05:13,333 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:05:13,334 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:05:13,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-19 08:05:13,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-19 08:05:13,547 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [printable_stringErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, printable_stringErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, printable_stringErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 124 more)] === [2023-11-19 08:05:13,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:13,547 INFO L85 PathProgramCache]: Analyzing trace with hash -331660724, now seen corresponding path program 1 times [2023-11-19 08:05:13,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:05:13,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76331814] [2023-11-19 08:05:13,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:13,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:05:13,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:14,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 08:05:14,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:14,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-19 08:05:14,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:14,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-19 08:05:14,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:14,090 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-19 08:05:14,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:05:14,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76331814] [2023-11-19 08:05:14,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76331814] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:05:14,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498824281] [2023-11-19 08:05:14,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:14,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:05:14,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:05:14,093 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:05:14,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-19 08:05:14,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:14,958 INFO L262 TraceCheckSpWp]: Trace formula consists of 1679 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 08:05:14,964 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:05:14,994 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-19 08:05:14,994 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:05:14,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1498824281] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:05:14,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 08:05:14,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-11-19 08:05:14,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886878370] [2023-11-19 08:05:14,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:05:14,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:05:14,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:05:14,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:05:14,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-19 08:05:14,997 INFO L87 Difference]: Start difference. First operand 1517 states and 2148 transitions. Second operand has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 08:05:15,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:05:15,136 INFO L93 Difference]: Finished difference Result 1798 states and 2566 transitions. [2023-11-19 08:05:15,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:05:15,137 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 80 [2023-11-19 08:05:15,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:05:15,149 INFO L225 Difference]: With dead ends: 1798 [2023-11-19 08:05:15,149 INFO L226 Difference]: Without dead ends: 1797 [2023-11-19 08:05:15,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-19 08:05:15,153 INFO L413 NwaCegarLoop]: 2104 mSDtfsCounter, 796 mSDsluCounter, 3668 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 808 SdHoareTripleChecker+Valid, 5772 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:05:15,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [808 Valid, 5772 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:05:15,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1797 states. [2023-11-19 08:05:15,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1797 to 1516. [2023-11-19 08:05:15,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1516 states, 1285 states have (on average 1.5252918287937742) internal successors, (1960), 1397 states have internal predecessors, (1960), 97 states have call successors, (97), 32 states have call predecessors, (97), 31 states have return successors, (90), 89 states have call predecessors, (90), 90 states have call successors, (90) [2023-11-19 08:05:15,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1516 states to 1516 states and 2147 transitions. [2023-11-19 08:05:15,215 INFO L78 Accepts]: Start accepts. Automaton has 1516 states and 2147 transitions. Word has length 80 [2023-11-19 08:05:15,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:05:15,215 INFO L495 AbstractCegarLoop]: Abstraction has 1516 states and 2147 transitions. [2023-11-19 08:05:15,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 08:05:15,216 INFO L276 IsEmpty]: Start isEmpty. Operand 1516 states and 2147 transitions. [2023-11-19 08:05:15,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-19 08:05:15,217 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:05:15,217 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:05:15,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-19 08:05:15,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:05:15,432 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [printable_stringErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, printable_stringErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, printable_stringErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 124 more)] === [2023-11-19 08:05:15,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:15,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1691544825, now seen corresponding path program 1 times [2023-11-19 08:05:15,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:05:15,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370436433] [2023-11-19 08:05:15,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:15,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:05:15,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:15,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 08:05:15,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:15,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-19 08:05:15,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:15,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-19 08:05:15,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:15,829 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-19 08:05:15,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:05:15,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370436433] [2023-11-19 08:05:15,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370436433] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:05:15,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1766804850] [2023-11-19 08:05:15,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:15,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:05:15,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:05:15,831 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:05:15,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b6b9cb-a5c4-4e08-ac17-7bf8459fbec1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-19 08:05:16,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:16,726 INFO L262 TraceCheckSpWp]: Trace formula consists of 1680 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 08:05:16,730 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:05:16,755 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-19 08:05:16,756 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:05:16,799 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-19 08:05:16,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1766804850] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:05:16,799 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 08:05:16,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 8 [2023-11-19 08:05:16,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598727190] [2023-11-19 08:05:16,800 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 08:05:16,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 08:05:16,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:05:16,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 08:05:16,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-11-19 08:05:16,801 INFO L87 Difference]: Start difference. First operand 1516 states and 2147 transitions. Second operand has 9 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 1 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)