./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/seq-pthread/cs_fib-1.i --full-output --preprocessor.use.memory.slicer false --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6ae2ee47 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/seq-pthread/cs_fib-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash da5783328d73eba8f05689c8b63c9b7f7c1c1eeab4600bb7173d3ddf64fb59e0 --preprocessor.use.memory.slicer false --- Real Ultimate output --- This is Ultimate 0.2.3-dev-6ae2ee4-m [2023-11-22 20:58:19,606 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-22 20:58:19,673 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-22 20:58:19,678 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-22 20:58:19,679 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-22 20:58:19,700 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-22 20:58:19,700 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-22 20:58:19,700 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-22 20:58:19,701 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-22 20:58:19,704 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-22 20:58:19,705 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-22 20:58:19,705 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-22 20:58:19,706 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-22 20:58:19,707 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-22 20:58:19,707 INFO L153 SettingsManager]: * Use SBE=true [2023-11-22 20:58:19,707 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-22 20:58:19,707 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-22 20:58:19,708 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-22 20:58:19,708 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-22 20:58:19,708 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-22 20:58:19,708 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-22 20:58:19,709 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-22 20:58:19,709 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-22 20:58:19,709 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-22 20:58:19,709 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-22 20:58:19,709 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-22 20:58:19,710 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-22 20:58:19,710 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-22 20:58:19,710 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-22 20:58:19,711 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-22 20:58:19,711 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-22 20:58:19,711 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 20:58:19,712 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-22 20:58:19,712 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-22 20:58:19,712 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-22 20:58:19,712 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-22 20:58:19,712 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-22 20:58:19,713 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-22 20:58:19,713 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-22 20:58:19,713 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-22 20:58:19,713 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-22 20:58:19,716 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-22 20:58:19,716 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da5783328d73eba8f05689c8b63c9b7f7c1c1eeab4600bb7173d3ddf64fb59e0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> false [2023-11-22 20:58:19,926 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-22 20:58:19,947 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-22 20:58:19,949 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-22 20:58:19,950 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-22 20:58:19,950 INFO L274 PluginConnector]: CDTParser initialized [2023-11-22 20:58:19,952 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-pthread/cs_fib-1.i [2023-11-22 20:58:20,947 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-22 20:58:21,111 INFO L384 CDTParser]: Found 1 translation units. [2023-11-22 20:58:21,112 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-pthread/cs_fib-1.i [2023-11-22 20:58:21,124 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1447a847f/c50eb9c1e3884a89a74d07d011dad92d/FLAG90bb15042 [2023-11-22 20:58:21,145 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1447a847f/c50eb9c1e3884a89a74d07d011dad92d [2023-11-22 20:58:21,147 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-22 20:58:21,148 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-22 20:58:21,149 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-22 20:58:21,149 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-22 20:58:21,153 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-22 20:58:21,154 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 08:58:21" (1/1) ... [2023-11-22 20:58:21,154 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@616d3136 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:58:21, skipping insertion in model container [2023-11-22 20:58:21,154 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 08:58:21" (1/1) ... [2023-11-22 20:58:21,199 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-22 20:58:21,452 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-pthread/cs_fib-1.i[23602,23615] [2023-11-22 20:58:21,557 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 20:58:21,572 INFO L202 MainTranslator]: Completed pre-run [2023-11-22 20:58:21,604 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-pthread/cs_fib-1.i[23602,23615] [2023-11-22 20:58:21,635 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 20:58:21,662 INFO L206 MainTranslator]: Completed translation [2023-11-22 20:58:21,663 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:58:21 WrapperNode [2023-11-22 20:58:21,663 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-22 20:58:21,664 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-22 20:58:21,664 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-22 20:58:21,664 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-22 20:58:21,669 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:58:21" (1/1) ... [2023-11-22 20:58:21,709 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:58:21" (1/1) ... [2023-11-22 20:58:21,767 INFO L138 Inliner]: procedures = 144, calls = 352, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 676 [2023-11-22 20:58:21,768 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-22 20:58:21,768 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-22 20:58:21,768 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-22 20:58:21,768 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-22 20:58:21,783 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:58:21" (1/1) ... [2023-11-22 20:58:21,783 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:58:21" (1/1) ... [2023-11-22 20:58:21,800 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:58:21" (1/1) ... [2023-11-22 20:58:21,800 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:58:21" (1/1) ... [2023-11-22 20:58:21,835 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:58:21" (1/1) ... [2023-11-22 20:58:21,839 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:58:21" (1/1) ... [2023-11-22 20:58:21,842 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:58:21" (1/1) ... [2023-11-22 20:58:21,845 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:58:21" (1/1) ... [2023-11-22 20:58:21,850 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-22 20:58:21,851 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-22 20:58:21,851 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-22 20:58:21,851 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-22 20:58:21,852 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:58:21" (1/1) ... [2023-11-22 20:58:21,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 20:58:21,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 20:58:21,881 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-22 20:58:21,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-22 20:58:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-22 20:58:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-22 20:58:21,941 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-22 20:58:21,941 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-22 20:58:21,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-22 20:58:21,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-22 20:58:21,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-22 20:58:21,942 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2023-11-22 20:58:21,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2023-11-22 20:58:21,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-22 20:58:21,943 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-22 20:58:21,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-22 20:58:21,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-22 20:58:21,944 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2023-11-22 20:58:21,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2023-11-22 20:58:21,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-22 20:58:21,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-22 20:58:21,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-22 20:58:22,125 INFO L241 CfgBuilder]: Building ICFG [2023-11-22 20:58:22,126 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-22 20:58:22,327 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2023-11-22 20:58:22,327 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-11-22 20:58:22,327 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2023-11-22 20:58:22,327 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-11-22 20:58:22,327 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L734: SUMMARY for call __CS_cs(); srcloc: null [2023-11-22 20:58:22,328 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L734-1: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2023-11-22 20:58:22,328 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L734-1: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-11-22 20:58:24,626 INFO L282 CfgBuilder]: Performing block encoding [2023-11-22 20:58:24,667 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-22 20:58:24,668 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-22 20:58:24,668 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 08:58:24 BoogieIcfgContainer [2023-11-22 20:58:24,669 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-22 20:58:24,671 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-22 20:58:24,671 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-22 20:58:24,674 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-22 20:58:24,674 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 08:58:21" (1/3) ... [2023-11-22 20:58:24,675 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1898bf54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 08:58:24, skipping insertion in model container [2023-11-22 20:58:24,675 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:58:21" (2/3) ... [2023-11-22 20:58:24,676 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1898bf54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 08:58:24, skipping insertion in model container [2023-11-22 20:58:24,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 08:58:24" (3/3) ... [2023-11-22 20:58:24,677 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_fib-1.i [2023-11-22 20:58:24,692 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-22 20:58:24,692 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-22 20:58:24,728 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-22 20:58:24,733 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;@2721029e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-22 20:58:24,734 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-22 20:58:24,738 INFO L276 IsEmpty]: Start isEmpty. Operand has 163 states, 98 states have (on average 1.3775510204081634) internal successors, (135), 99 states have internal predecessors, (135), 59 states have call successors, (59), 4 states have call predecessors, (59), 4 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-11-22 20:58:24,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2023-11-22 20:58:24,762 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 20:58:24,762 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 20:58:24,763 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 20:58:24,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 20:58:24,767 INFO L85 PathProgramCache]: Analyzing trace with hash 321329038, now seen corresponding path program 1 times [2023-11-22 20:58:24,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 20:58:24,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984818366] [2023-11-22 20:58:24,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 20:58:24,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 20:58:25,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:25,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-22 20:58:25,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:25,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 20:58:25,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:25,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-22 20:58:25,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:25,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-22 20:58:25,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:25,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-22 20:58:25,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:25,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-22 20:58:25,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:25,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-22 20:58:25,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:25,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 20:58:25,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:25,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 20:58:25,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:25,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-22 20:58:25,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:25,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-22 20:58:25,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:25,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-22 20:58:25,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:25,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 20:58:25,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:25,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 20:58:25,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:25,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-22 20:58:25,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:25,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-22 20:58:25,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:25,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-22 20:58:25,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:25,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-22 20:58:25,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:25,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-22 20:58:25,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:25,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-22 20:58:25,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:25,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-22 20:58:25,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:25,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-22 20:58:25,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:25,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-22 20:58:25,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:25,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-22 20:58:25,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:25,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-11-22 20:58:25,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:25,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-22 20:58:25,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:25,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-11-22 20:58:25,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:25,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-11-22 20:58:25,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:25,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-11-22 20:58:25,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:25,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-11-22 20:58:25,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:25,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-11-22 20:58:25,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:25,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-11-22 20:58:25,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:25,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-11-22 20:58:25,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:25,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-11-22 20:58:25,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:25,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2023-11-22 20:58:25,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:25,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-11-22 20:58:25,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:25,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-11-22 20:58:25,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:25,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-11-22 20:58:25,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:25,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-11-22 20:58:25,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:25,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-11-22 20:58:25,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:25,827 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2023-11-22 20:58:25,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 20:58:25,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984818366] [2023-11-22 20:58:25,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984818366] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 20:58:25,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 20:58:25,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 20:58:25,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985530249] [2023-11-22 20:58:25,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 20:58:25,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 20:58:25,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 20:58:25,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 20:58:25,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 20:58:25,869 INFO L87 Difference]: Start difference. First operand has 163 states, 98 states have (on average 1.3775510204081634) internal successors, (135), 99 states have internal predecessors, (135), 59 states have call successors, (59), 4 states have call predecessors, (59), 4 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-11-22 20:58:25,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 20:58:25,953 INFO L93 Difference]: Finished difference Result 328 states and 569 transitions. [2023-11-22 20:58:25,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 20:58:25,958 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 251 [2023-11-22 20:58:25,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 20:58:25,964 INFO L225 Difference]: With dead ends: 328 [2023-11-22 20:58:25,964 INFO L226 Difference]: Without dead ends: 164 [2023-11-22 20:58:25,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 20:58:25,971 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 3 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-22 20:58:25,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 477 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-22 20:58:25,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2023-11-22 20:58:26,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 162. [2023-11-22 20:58:26,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 98 states have (on average 1.3061224489795917) internal successors, (128), 98 states have internal predecessors, (128), 59 states have call successors, (59), 4 states have call predecessors, (59), 4 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-11-22 20:58:26,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 246 transitions. [2023-11-22 20:58:26,029 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 246 transitions. Word has length 251 [2023-11-22 20:58:26,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 20:58:26,030 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 246 transitions. [2023-11-22 20:58:26,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-11-22 20:58:26,031 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 246 transitions. [2023-11-22 20:58:26,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2023-11-22 20:58:26,036 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 20:58:26,037 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 20:58:26,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-22 20:58:26,037 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 20:58:26,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 20:58:26,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1216394320, now seen corresponding path program 1 times [2023-11-22 20:58:26,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 20:58:26,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127143723] [2023-11-22 20:58:26,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 20:58:26,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 20:58:26,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:26,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 20:58:26,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:26,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-22 20:58:26,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:26,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-22 20:58:26,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:26,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-22 20:58:26,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:26,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-22 20:58:26,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:26,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-22 20:58:26,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:26,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-22 20:58:26,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:26,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-22 20:58:26,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:26,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-22 20:58:26,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:26,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 20:58:26,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:26,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-22 20:58:26,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:26,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-22 20:58:26,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:26,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-22 20:58:26,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:26,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-22 20:58:26,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:26,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-22 20:58:26,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:26,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-22 20:58:26,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:26,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-22 20:58:26,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:26,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-22 20:58:26,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:26,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-22 20:58:26,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:26,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-22 20:58:26,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:26,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-11-22 20:58:26,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:26,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-22 20:58:26,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:26,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-22 20:58:26,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:26,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-11-22 20:58:26,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:26,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-22 20:58:26,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:26,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-11-22 20:58:26,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:26,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-11-22 20:58:26,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:26,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-11-22 20:58:26,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:26,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-22 20:58:26,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:26,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-11-22 20:58:26,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:26,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-11-22 20:58:26,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:26,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-11-22 20:58:26,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:26,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-11-22 20:58:26,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:26,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-22 20:58:26,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:26,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2023-11-22 20:58:26,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:26,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-11-22 20:58:26,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:26,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-11-22 20:58:26,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:26,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2023-11-22 20:58:26,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:26,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-11-22 20:58:26,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:26,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2023-11-22 20:58:26,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:26,809 INFO L134 CoverageAnalysis]: Checked inductivity of 3121 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2023-11-22 20:58:26,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 20:58:26,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127143723] [2023-11-22 20:58:26,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127143723] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 20:58:26,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 20:58:26,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 20:58:26,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036242811] [2023-11-22 20:58:26,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 20:58:26,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 20:58:26,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 20:58:26,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 20:58:26,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 20:58:26,815 INFO L87 Difference]: Start difference. First operand 162 states and 246 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-11-22 20:58:26,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 20:58:26,883 INFO L93 Difference]: Finished difference Result 323 states and 492 transitions. [2023-11-22 20:58:26,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 20:58:26,884 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 254 [2023-11-22 20:58:26,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 20:58:26,889 INFO L225 Difference]: With dead ends: 323 [2023-11-22 20:58:26,889 INFO L226 Difference]: Without dead ends: 163 [2023-11-22 20:58:26,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 20:58:26,893 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 0 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-22 20:58:26,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 478 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-22 20:58:26,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2023-11-22 20:58:26,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2023-11-22 20:58:26,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 99 states have (on average 1.303030303030303) internal successors, (129), 99 states have internal predecessors, (129), 59 states have call successors, (59), 4 states have call predecessors, (59), 4 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-11-22 20:58:26,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 247 transitions. [2023-11-22 20:58:26,915 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 247 transitions. Word has length 254 [2023-11-22 20:58:26,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 20:58:26,915 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 247 transitions. [2023-11-22 20:58:26,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-11-22 20:58:26,918 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 247 transitions. [2023-11-22 20:58:26,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2023-11-22 20:58:26,921 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 20:58:26,921 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 20:58:26,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-22 20:58:26,922 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 20:58:26,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 20:58:26,922 INFO L85 PathProgramCache]: Analyzing trace with hash -198331486, now seen corresponding path program 1 times [2023-11-22 20:58:26,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 20:58:26,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662236619] [2023-11-22 20:58:26,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 20:58:26,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 20:58:27,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:27,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 20:58:27,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:27,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 20:58:27,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:27,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-22 20:58:27,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:27,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 20:58:27,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:27,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 20:58:27,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:27,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 20:58:27,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:27,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-22 20:58:27,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:27,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-22 20:58:27,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:27,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-22 20:58:27,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:27,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-22 20:58:27,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:27,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-22 20:58:27,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:27,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-22 20:58:27,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:27,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-22 20:58:27,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:27,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-22 20:58:27,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:27,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-22 20:58:27,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:27,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-22 20:58:27,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:27,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-22 20:58:27,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:27,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-22 20:58:27,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:27,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-22 20:58:27,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:27,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-22 20:58:27,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:27,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-22 20:58:27,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:27,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-22 20:58:27,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:27,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-22 20:58:27,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:27,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-11-22 20:58:27,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:27,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-11-22 20:58:27,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:27,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-11-22 20:58:27,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:27,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-11-22 20:58:27,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:27,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-11-22 20:58:27,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:27,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-11-22 20:58:27,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:27,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-11-22 20:58:27,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:27,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-11-22 20:58:27,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:27,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-11-22 20:58:27,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:27,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-11-22 20:58:27,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:27,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-11-22 20:58:27,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:27,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2023-11-22 20:58:27,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:27,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2023-11-22 20:58:27,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:27,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-11-22 20:58:27,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:27,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-11-22 20:58:27,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:27,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-11-22 20:58:27,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:27,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-11-22 20:58:27,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:27,505 INFO L134 CoverageAnalysis]: Checked inductivity of 3122 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2023-11-22 20:58:27,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 20:58:27,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662236619] [2023-11-22 20:58:27,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662236619] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 20:58:27,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2063375117] [2023-11-22 20:58:27,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 20:58:27,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 20:58:27,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 20:58:27,517 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 20:58:27,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-22 20:58:28,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:28,225 INFO L262 TraceCheckSpWp]: Trace formula consists of 1338 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-22 20:58:28,236 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 20:58:28,301 INFO L134 CoverageAnalysis]: Checked inductivity of 3122 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2023-11-22 20:58:28,306 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 20:58:28,406 INFO L134 CoverageAnalysis]: Checked inductivity of 3122 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2023-11-22 20:58:28,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2063375117] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 20:58:28,407 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 20:58:28,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2023-11-22 20:58:28,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380252782] [2023-11-22 20:58:28,407 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 20:58:28,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 20:58:28,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 20:58:28,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 20:58:28,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-22 20:58:28,409 INFO L87 Difference]: Start difference. First operand 163 states and 247 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 1 states have call successors, (80), 2 states have call predecessors, (80), 2 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2023-11-22 20:58:28,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 20:58:28,459 INFO L93 Difference]: Finished difference Result 326 states and 496 transitions. [2023-11-22 20:58:28,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-22 20:58:28,460 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 1 states have call successors, (80), 2 states have call predecessors, (80), 2 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) Word has length 255 [2023-11-22 20:58:28,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 20:58:28,461 INFO L225 Difference]: With dead ends: 326 [2023-11-22 20:58:28,461 INFO L226 Difference]: Without dead ends: 165 [2023-11-22 20:58:28,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 592 GetRequests, 587 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-22 20:58:28,462 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 0 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-22 20:58:28,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 716 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-22 20:58:28,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2023-11-22 20:58:28,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2023-11-22 20:58:28,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 101 states have (on average 1.297029702970297) internal successors, (131), 101 states have internal predecessors, (131), 59 states have call successors, (59), 4 states have call predecessors, (59), 4 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-11-22 20:58:28,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 249 transitions. [2023-11-22 20:58:28,474 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 249 transitions. Word has length 255 [2023-11-22 20:58:28,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 20:58:28,474 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 249 transitions. [2023-11-22 20:58:28,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 1 states have call successors, (80), 2 states have call predecessors, (80), 2 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2023-11-22 20:58:28,475 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 249 transitions. [2023-11-22 20:58:28,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2023-11-22 20:58:28,479 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 20:58:28,479 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 20:58:28,496 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-22 20:58:28,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 20:58:28,696 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 20:58:28,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 20:58:28,697 INFO L85 PathProgramCache]: Analyzing trace with hash 847974754, now seen corresponding path program 2 times [2023-11-22 20:58:28,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 20:58:28,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837977636] [2023-11-22 20:58:28,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 20:58:28,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 20:58:29,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:29,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 20:58:29,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:29,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-22 20:58:29,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:29,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-22 20:58:29,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:29,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-22 20:58:29,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:29,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-22 20:58:29,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:29,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-22 20:58:29,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:29,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 20:58:29,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:29,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 20:58:29,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:29,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-22 20:58:29,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:29,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-22 20:58:29,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:29,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-22 20:58:29,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:29,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 20:58:29,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:29,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 20:58:29,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:29,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-22 20:58:29,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:29,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-22 20:58:29,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:29,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-22 20:58:29,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:29,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-22 20:58:29,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:29,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-22 20:58:29,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:29,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-22 20:58:29,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:29,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-22 20:58:29,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:29,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-22 20:58:29,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:29,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-22 20:58:29,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:29,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-22 20:58:29,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:29,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-11-22 20:58:29,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:29,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-22 20:58:29,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:29,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-11-22 20:58:29,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:29,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-11-22 20:58:29,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:29,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-11-22 20:58:29,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:29,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-11-22 20:58:29,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:29,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-11-22 20:58:29,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:29,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-11-22 20:58:29,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:29,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-11-22 20:58:29,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:29,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-11-22 20:58:29,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:29,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2023-11-22 20:58:29,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:29,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-11-22 20:58:29,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:29,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-11-22 20:58:29,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:29,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-11-22 20:58:29,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:29,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-11-22 20:58:29,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:29,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-11-22 20:58:29,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:29,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-11-22 20:58:29,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:29,335 INFO L134 CoverageAnalysis]: Checked inductivity of 3127 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3126 trivial. 0 not checked. [2023-11-22 20:58:29,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 20:58:29,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837977636] [2023-11-22 20:58:29,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837977636] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 20:58:29,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1930437226] [2023-11-22 20:58:29,336 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-22 20:58:29,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 20:58:29,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 20:58:29,337 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 20:58:29,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-22 20:58:29,979 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-22 20:58:29,979 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-22 20:58:29,985 INFO L262 TraceCheckSpWp]: Trace formula consists of 712 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-22 20:58:29,992 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 20:58:30,340 INFO L134 CoverageAnalysis]: Checked inductivity of 3127 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3127 trivial. 0 not checked. [2023-11-22 20:58:30,340 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 20:58:30,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1930437226] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 20:58:30,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 20:58:30,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-11-22 20:58:30,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654455793] [2023-11-22 20:58:30,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 20:58:30,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-22 20:58:30,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 20:58:30,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-22 20:58:30,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-22 20:58:30,346 INFO L87 Difference]: Start difference. First operand 165 states and 249 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-11-22 20:58:30,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 20:58:30,399 INFO L93 Difference]: Finished difference Result 319 states and 486 transitions. [2023-11-22 20:58:30,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-22 20:58:30,400 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 257 [2023-11-22 20:58:30,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 20:58:30,403 INFO L225 Difference]: With dead ends: 319 [2023-11-22 20:58:30,403 INFO L226 Difference]: Without dead ends: 233 [2023-11-22 20:58:30,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-22 20:58:30,404 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 107 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-22 20:58:30,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 708 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-22 20:58:30,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2023-11-22 20:58:30,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2023-11-22 20:58:30,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 147 states have (on average 1.3741496598639455) internal successors, (202), 147 states have internal predecessors, (202), 77 states have call successors, (77), 8 states have call predecessors, (77), 8 states have return successors, (79), 77 states have call predecessors, (79), 77 states have call successors, (79) [2023-11-22 20:58:30,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 358 transitions. [2023-11-22 20:58:30,441 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 358 transitions. Word has length 257 [2023-11-22 20:58:30,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 20:58:30,441 INFO L495 AbstractCegarLoop]: Abstraction has 233 states and 358 transitions. [2023-11-22 20:58:30,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-11-22 20:58:30,442 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 358 transitions. [2023-11-22 20:58:30,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2023-11-22 20:58:30,445 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 20:58:30,445 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 20:58:30,460 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-22 20:58:30,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-11-22 20:58:30,658 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 20:58:30,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 20:58:30,659 INFO L85 PathProgramCache]: Analyzing trace with hash -110854610, now seen corresponding path program 1 times [2023-11-22 20:58:30,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 20:58:30,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247001671] [2023-11-22 20:58:30,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 20:58:30,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 20:58:31,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-22 20:58:31,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 20:58:31,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 20:58:31,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 20:58:31,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-22 20:58:31,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 20:58:31,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-22 20:58:31,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-22 20:58:31,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 20:58:31,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-22 20:58:31,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 20:58:31,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-22 20:58:31,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 20:58:31,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-22 20:58:31,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-22 20:58:31,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-22 20:58:31,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-22 20:58:31,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 20:58:31,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-22 20:58:31,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-22 20:58:31,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 20:58:31,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-22 20:58:31,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-22 20:58:31,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-22 20:58:31,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-22 20:58:31,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-11-22 20:58:31,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-11-22 20:58:31,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-22 20:58:31,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-11-22 20:58:31,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-11-22 20:58:31,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-22 20:58:31,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-11-22 20:58:31,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-11-22 20:58:31,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-11-22 20:58:31,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-11-22 20:58:31,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-11-22 20:58:31,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-11-22 20:58:31,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-11-22 20:58:31,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-11-22 20:58:31,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-11-22 20:58:31,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-11-22 20:58:31,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-11-22 20:58:31,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-11-22 20:58:31,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-11-22 20:58:31,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-11-22 20:58:31,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-11-22 20:58:31,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-11-22 20:58:31,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2023-11-22 20:58:31,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2023-11-22 20:58:31,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-11-22 20:58:31,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2023-11-22 20:58:31,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:31,339 INFO L134 CoverageAnalysis]: Checked inductivity of 3819 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3818 trivial. 0 not checked. [2023-11-22 20:58:31,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 20:58:31,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247001671] [2023-11-22 20:58:31,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247001671] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 20:58:31,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [217457863] [2023-11-22 20:58:31,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 20:58:31,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 20:58:31,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 20:58:31,341 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 20:58:31,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-22 20:58:32,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:32,195 INFO L262 TraceCheckSpWp]: Trace formula consists of 1767 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-22 20:58:32,202 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 20:58:32,234 INFO L134 CoverageAnalysis]: Checked inductivity of 3819 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3818 trivial. 0 not checked. [2023-11-22 20:58:32,235 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 20:58:32,363 INFO L134 CoverageAnalysis]: Checked inductivity of 3819 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3818 trivial. 0 not checked. [2023-11-22 20:58:32,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [217457863] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 20:58:32,363 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 20:58:32,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 3, 4] total 10 [2023-11-22 20:58:32,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722378962] [2023-11-22 20:58:32,364 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 20:58:32,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-22 20:58:32,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 20:58:32,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-22 20:58:32,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-22 20:58:32,367 INFO L87 Difference]: Start difference. First operand 233 states and 358 transitions. Second operand has 10 states, 10 states have (on average 11.1) internal successors, (111), 7 states have internal predecessors, (111), 2 states have call successors, (103), 5 states have call predecessors, (103), 2 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) [2023-11-22 20:58:34,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 20:58:36,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 20:58:38,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 20:58:39,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 20:58:39,819 INFO L93 Difference]: Finished difference Result 514 states and 798 transitions. [2023-11-22 20:58:39,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-22 20:58:39,820 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 7 states have internal predecessors, (111), 2 states have call successors, (103), 5 states have call predecessors, (103), 2 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) Word has length 319 [2023-11-22 20:58:39,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 20:58:39,822 INFO L225 Difference]: With dead ends: 514 [2023-11-22 20:58:39,822 INFO L226 Difference]: Without dead ends: 289 [2023-11-22 20:58:39,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 742 GetRequests, 733 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-11-22 20:58:39,823 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 63 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 196 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2023-11-22 20:58:39,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 664 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 415 Invalid, 3 Unknown, 0 Unchecked, 7.3s Time] [2023-11-22 20:58:39,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2023-11-22 20:58:39,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 270. [2023-11-22 20:58:39,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 177 states have (on average 1.3728813559322033) internal successors, (243), 178 states have internal predecessors, (243), 83 states have call successors, (83), 8 states have call predecessors, (83), 9 states have return successors, (87), 83 states have call predecessors, (87), 83 states have call successors, (87) [2023-11-22 20:58:39,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 413 transitions. [2023-11-22 20:58:39,839 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 413 transitions. Word has length 319 [2023-11-22 20:58:39,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 20:58:39,839 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 413 transitions. [2023-11-22 20:58:39,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 7 states have internal predecessors, (111), 2 states have call successors, (103), 5 states have call predecessors, (103), 2 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) [2023-11-22 20:58:39,839 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 413 transitions. [2023-11-22 20:58:39,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2023-11-22 20:58:39,842 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 20:58:39,843 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 12, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 20:58:39,868 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-22 20:58:40,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 20:58:40,057 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 20:58:40,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 20:58:40,057 INFO L85 PathProgramCache]: Analyzing trace with hash 367200666, now seen corresponding path program 2 times [2023-11-22 20:58:40,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 20:58:40,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053620485] [2023-11-22 20:58:40,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 20:58:40,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 20:58:40,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-22 20:58:41,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 20:58:41,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 20:58:41,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 20:58:41,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-22 20:58:41,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 20:58:41,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-22 20:58:41,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-22 20:58:41,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 20:58:41,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-22 20:58:41,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 20:58:41,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-22 20:58:41,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-22 20:58:41,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-22 20:58:41,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 20:58:41,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-22 20:58:41,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-22 20:58:41,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 20:58:41,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-22 20:58:41,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-22 20:58:41,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-22 20:58:41,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-22 20:58:41,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-11-22 20:58:41,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-11-22 20:58:41,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-22 20:58:41,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-11-22 20:58:41,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-11-22 20:58:41,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-22 20:58:41,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-11-22 20:58:41,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-11-22 20:58:41,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-11-22 20:58:41,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-11-22 20:58:41,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-11-22 20:58:41,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-11-22 20:58:41,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-11-22 20:58:41,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-11-22 20:58:41,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-11-22 20:58:41,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-11-22 20:58:41,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-11-22 20:58:41,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-11-22 20:58:41,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-11-22 20:58:41,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-11-22 20:58:41,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-11-22 20:58:41,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-11-22 20:58:41,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2023-11-22 20:58:41,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2023-11-22 20:58:41,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-11-22 20:58:41,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2023-11-22 20:58:41,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-11-22 20:58:41,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2023-11-22 20:58:41,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2023-11-22 20:58:41,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:41,470 INFO L134 CoverageAnalysis]: Checked inductivity of 3948 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3948 trivial. 0 not checked. [2023-11-22 20:58:41,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 20:58:41,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053620485] [2023-11-22 20:58:41,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053620485] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 20:58:41,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 20:58:41,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-22 20:58:41,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171144546] [2023-11-22 20:58:41,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 20:58:41,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-22 20:58:41,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 20:58:41,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-22 20:58:41,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-22 20:58:41,472 INFO L87 Difference]: Start difference. First operand 270 states and 413 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 4 states have internal predecessors, (77), 4 states have call successors, (48), 4 states have call predecessors, (48), 2 states have return successors, (48), 3 states have call predecessors, (48), 4 states have call successors, (48) [2023-11-22 20:58:43,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 20:58:45,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 20:58:47,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 20:58:49,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 20:58:51,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 20:58:54,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 20:58:54,315 INFO L93 Difference]: Finished difference Result 655 states and 1018 transitions. [2023-11-22 20:58:54,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-22 20:58:54,316 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 4 states have internal predecessors, (77), 4 states have call successors, (48), 4 states have call predecessors, (48), 2 states have return successors, (48), 3 states have call predecessors, (48), 4 states have call successors, (48) Word has length 337 [2023-11-22 20:58:54,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 20:58:54,320 INFO L225 Difference]: With dead ends: 655 [2023-11-22 20:58:54,320 INFO L226 Difference]: Without dead ends: 560 [2023-11-22 20:58:54,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2023-11-22 20:58:54,322 INFO L413 NwaCegarLoop]: 318 mSDtfsCounter, 337 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 240 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 240 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2023-11-22 20:58:54,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 881 Invalid, 923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [240 Valid, 678 Invalid, 5 Unknown, 0 Unchecked, 12.3s Time] [2023-11-22 20:58:54,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2023-11-22 20:58:54,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 499. [2023-11-22 20:58:54,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 317 states have (on average 1.3785488958990537) internal successors, (437), 321 states have internal predecessors, (437), 161 states have call successors, (161), 16 states have call predecessors, (161), 20 states have return successors, (177), 161 states have call predecessors, (177), 161 states have call successors, (177) [2023-11-22 20:58:54,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 775 transitions. [2023-11-22 20:58:54,355 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 775 transitions. Word has length 337 [2023-11-22 20:58:54,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 20:58:54,355 INFO L495 AbstractCegarLoop]: Abstraction has 499 states and 775 transitions. [2023-11-22 20:58:54,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 4 states have internal predecessors, (77), 4 states have call successors, (48), 4 states have call predecessors, (48), 2 states have return successors, (48), 3 states have call predecessors, (48), 4 states have call successors, (48) [2023-11-22 20:58:54,355 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 775 transitions. [2023-11-22 20:58:54,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2023-11-22 20:58:54,359 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 20:58:54,360 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 12, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 20:58:54,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-22 20:58:54,360 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 20:58:54,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 20:58:54,360 INFO L85 PathProgramCache]: Analyzing trace with hash -715691398, now seen corresponding path program 1 times [2023-11-22 20:58:54,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 20:58:54,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728182275] [2023-11-22 20:58:54,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 20:58:54,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 20:58:54,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-22 20:58:55,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 20:58:55,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 20:58:55,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 20:58:55,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-22 20:58:55,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 20:58:55,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-22 20:58:55,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-22 20:58:55,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 20:58:55,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-22 20:58:55,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 20:58:55,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-22 20:58:55,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-22 20:58:55,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-22 20:58:55,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 20:58:55,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-22 20:58:55,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-22 20:58:55,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 20:58:55,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-22 20:58:55,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-22 20:58:55,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-22 20:58:55,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-22 20:58:55,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-11-22 20:58:55,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-11-22 20:58:55,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-22 20:58:55,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-11-22 20:58:55,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-11-22 20:58:55,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-22 20:58:55,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-11-22 20:58:55,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-11-22 20:58:55,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-11-22 20:58:55,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-11-22 20:58:55,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-11-22 20:58:55,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-11-22 20:58:55,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-11-22 20:58:55,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-11-22 20:58:55,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-11-22 20:58:55,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-11-22 20:58:55,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-11-22 20:58:55,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-11-22 20:58:55,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-11-22 20:58:55,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-11-22 20:58:55,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-11-22 20:58:55,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-11-22 20:58:55,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2023-11-22 20:58:55,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2023-11-22 20:58:55,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-11-22 20:58:55,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2023-11-22 20:58:55,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-11-22 20:58:55,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2023-11-22 20:58:55,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2023-11-22 20:58:55,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:58:55,614 INFO L134 CoverageAnalysis]: Checked inductivity of 3948 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3948 trivial. 0 not checked. [2023-11-22 20:58:55,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 20:58:55,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728182275] [2023-11-22 20:58:55,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728182275] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 20:58:55,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 20:58:55,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-22 20:58:55,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736788321] [2023-11-22 20:58:55,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 20:58:55,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-22 20:58:55,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 20:58:55,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-22 20:58:55,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-22 20:58:55,616 INFO L87 Difference]: Start difference. First operand 499 states and 775 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 4 states have internal predecessors, (77), 4 states have call successors, (48), 4 states have call predecessors, (48), 2 states have return successors, (48), 3 states have call predecessors, (48), 4 states have call successors, (48) [2023-11-22 20:58:57,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 20:58:59,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 20:59:01,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 20:59:03,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 20:59:05,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 20:59:09,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 20:59:09,273 INFO L93 Difference]: Finished difference Result 952 states and 1476 transitions. [2023-11-22 20:59:09,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-22 20:59:09,273 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 4 states have internal predecessors, (77), 4 states have call successors, (48), 4 states have call predecessors, (48), 2 states have return successors, (48), 3 states have call predecessors, (48), 4 states have call successors, (48) Word has length 337 [2023-11-22 20:59:09,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 20:59:09,277 INFO L225 Difference]: With dead ends: 952 [2023-11-22 20:59:09,277 INFO L226 Difference]: Without dead ends: 459 [2023-11-22 20:59:09,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2023-11-22 20:59:09,279 INFO L413 NwaCegarLoop]: 325 mSDtfsCounter, 322 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 909 mSolverCounterSat, 155 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 928 SdHoareTripleChecker+Invalid, 1069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 909 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2023-11-22 20:59:09,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 928 Invalid, 1069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 909 Invalid, 5 Unknown, 0 Unchecked, 13.0s Time] [2023-11-22 20:59:09,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2023-11-22 20:59:09,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 421. [2023-11-22 20:59:09,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 266 states have (on average 1.2932330827067668) internal successors, (344), 268 states have internal predecessors, (344), 137 states have call successors, (137), 15 states have call predecessors, (137), 17 states have return successors, (145), 137 states have call predecessors, (145), 137 states have call successors, (145) [2023-11-22 20:59:09,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 626 transitions. [2023-11-22 20:59:09,304 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 626 transitions. Word has length 337 [2023-11-22 20:59:09,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 20:59:09,304 INFO L495 AbstractCegarLoop]: Abstraction has 421 states and 626 transitions. [2023-11-22 20:59:09,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 4 states have internal predecessors, (77), 4 states have call successors, (48), 4 states have call predecessors, (48), 2 states have return successors, (48), 3 states have call predecessors, (48), 4 states have call successors, (48) [2023-11-22 20:59:09,304 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 626 transitions. [2023-11-22 20:59:09,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2023-11-22 20:59:09,307 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 20:59:09,307 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 12, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 20:59:09,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-22 20:59:09,307 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 20:59:09,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 20:59:09,308 INFO L85 PathProgramCache]: Analyzing trace with hash -167021734, now seen corresponding path program 1 times [2023-11-22 20:59:09,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 20:59:09,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965133651] [2023-11-22 20:59:09,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 20:59:09,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 20:59:09,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-22 20:59:10,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 20:59:10,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 20:59:10,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 20:59:10,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-22 20:59:10,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 20:59:10,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-22 20:59:10,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-22 20:59:10,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 20:59:10,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-22 20:59:10,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 20:59:10,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-22 20:59:10,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-22 20:59:10,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-22 20:59:10,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 20:59:10,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-22 20:59:10,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-22 20:59:10,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 20:59:10,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-22 20:59:10,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-22 20:59:10,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-22 20:59:10,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-22 20:59:10,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-11-22 20:59:10,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-11-22 20:59:10,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-22 20:59:10,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-11-22 20:59:10,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-11-22 20:59:10,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-22 20:59:10,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-11-22 20:59:10,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-11-22 20:59:10,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-11-22 20:59:10,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-11-22 20:59:10,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-11-22 20:59:10,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-11-22 20:59:10,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-11-22 20:59:10,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-11-22 20:59:10,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-11-22 20:59:10,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-11-22 20:59:10,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-11-22 20:59:10,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-11-22 20:59:10,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-11-22 20:59:10,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-11-22 20:59:10,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-11-22 20:59:10,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-11-22 20:59:10,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2023-11-22 20:59:10,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2023-11-22 20:59:10,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-11-22 20:59:10,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2023-11-22 20:59:10,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-11-22 20:59:10,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2023-11-22 20:59:10,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2023-11-22 20:59:10,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:10,394 INFO L134 CoverageAnalysis]: Checked inductivity of 3948 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 3836 trivial. 0 not checked. [2023-11-22 20:59:10,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 20:59:10,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965133651] [2023-11-22 20:59:10,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965133651] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 20:59:10,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1800617012] [2023-11-22 20:59:10,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 20:59:10,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 20:59:10,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 20:59:10,396 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 20:59:10,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-22 20:59:11,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:11,292 INFO L262 TraceCheckSpWp]: Trace formula consists of 2100 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-22 20:59:11,299 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 20:59:11,489 INFO L134 CoverageAnalysis]: Checked inductivity of 3948 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 3836 trivial. 0 not checked. [2023-11-22 20:59:11,489 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 20:59:11,907 INFO L134 CoverageAnalysis]: Checked inductivity of 3948 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 3836 trivial. 0 not checked. [2023-11-22 20:59:11,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1800617012] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 20:59:11,907 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 20:59:11,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 7] total 12 [2023-11-22 20:59:11,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183227274] [2023-11-22 20:59:11,908 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 20:59:11,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-22 20:59:11,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 20:59:11,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-22 20:59:11,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2023-11-22 20:59:11,909 INFO L87 Difference]: Start difference. First operand 421 states and 626 transitions. Second operand has 12 states, 12 states have (on average 10.25) internal successors, (123), 9 states have internal predecessors, (123), 2 states have call successors, (103), 5 states have call predecessors, (103), 2 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) [2023-11-22 20:59:14,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 20:59:16,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 20:59:18,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 20:59:20,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 20:59:20,222 INFO L93 Difference]: Finished difference Result 858 states and 1290 transitions. [2023-11-22 20:59:20,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-22 20:59:20,223 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.25) internal successors, (123), 9 states have internal predecessors, (123), 2 states have call successors, (103), 5 states have call predecessors, (103), 2 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) Word has length 337 [2023-11-22 20:59:20,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 20:59:20,225 INFO L225 Difference]: With dead ends: 858 [2023-11-22 20:59:20,226 INFO L226 Difference]: Without dead ends: 463 [2023-11-22 20:59:20,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 781 GetRequests, 766 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2023-11-22 20:59:20,228 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 42 mSDsluCounter, 809 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 69 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2023-11-22 20:59:20,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 1023 Invalid, 795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 723 Invalid, 3 Unknown, 0 Unchecked, 8.2s Time] [2023-11-22 20:59:20,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2023-11-22 20:59:20,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 433. [2023-11-22 20:59:20,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 278 states have (on average 1.2877697841726619) internal successors, (358), 280 states have internal predecessors, (358), 137 states have call successors, (137), 15 states have call predecessors, (137), 17 states have return successors, (145), 137 states have call predecessors, (145), 137 states have call successors, (145) [2023-11-22 20:59:20,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 640 transitions. [2023-11-22 20:59:20,250 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 640 transitions. Word has length 337 [2023-11-22 20:59:20,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 20:59:20,251 INFO L495 AbstractCegarLoop]: Abstraction has 433 states and 640 transitions. [2023-11-22 20:59:20,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.25) internal successors, (123), 9 states have internal predecessors, (123), 2 states have call successors, (103), 5 states have call predecessors, (103), 2 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) [2023-11-22 20:59:20,251 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 640 transitions. [2023-11-22 20:59:20,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2023-11-22 20:59:20,254 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 20:59:20,254 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 18, 6, 6, 6, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 20:59:20,272 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-22 20:59:20,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 20:59:20,467 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 20:59:20,468 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 20:59:20,468 INFO L85 PathProgramCache]: Analyzing trace with hash 539528866, now seen corresponding path program 2 times [2023-11-22 20:59:20,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 20:59:20,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638920386] [2023-11-22 20:59:20,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 20:59:20,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 20:59:20,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-22 20:59:21,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 20:59:21,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 20:59:21,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 20:59:21,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-22 20:59:21,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 20:59:21,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-22 20:59:21,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-22 20:59:21,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 20:59:21,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-22 20:59:21,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 20:59:21,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-22 20:59:21,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 20:59:21,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-22 20:59:21,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-22 20:59:21,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 20:59:21,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-22 20:59:21,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-22 20:59:21,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-22 20:59:21,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-22 20:59:21,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-11-22 20:59:21,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-11-22 20:59:21,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-22 20:59:21,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-11-22 20:59:21,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-11-22 20:59:21,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-22 20:59:21,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-11-22 20:59:21,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-11-22 20:59:21,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-11-22 20:59:21,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-11-22 20:59:21,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-11-22 20:59:21,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-11-22 20:59:21,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-11-22 20:59:21,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-11-22 20:59:21,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-11-22 20:59:21,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-11-22 20:59:21,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-11-22 20:59:21,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-11-22 20:59:21,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-11-22 20:59:21,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-11-22 20:59:21,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-11-22 20:59:21,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-11-22 20:59:21,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2023-11-22 20:59:21,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2023-11-22 20:59:21,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-11-22 20:59:21,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2023-11-22 20:59:21,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-11-22 20:59:21,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2023-11-22 20:59:21,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2023-11-22 20:59:21,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2023-11-22 20:59:21,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2023-11-22 20:59:21,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 20:59:21,966 INFO L134 CoverageAnalysis]: Checked inductivity of 4124 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 4121 trivial. 0 not checked. [2023-11-22 20:59:21,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 20:59:21,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638920386] [2023-11-22 20:59:21,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638920386] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 20:59:21,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087727845] [2023-11-22 20:59:21,967 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-22 20:59:21,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 20:59:21,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 20:59:21,968 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 20:59:21,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process Killed by 15