/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-87.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 02:18:15,706 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 02:18:15,781 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-21 02:18:15,787 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 02:18:15,787 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 02:18:15,813 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 02:18:15,814 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 02:18:15,814 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 02:18:15,814 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 02:18:15,817 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 02:18:15,818 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 02:18:15,818 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 02:18:15,818 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 02:18:15,819 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 02:18:15,819 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 02:18:15,820 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 02:18:15,820 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 02:18:15,820 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 02:18:15,820 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 02:18:15,820 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 02:18:15,820 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 02:18:15,821 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 02:18:15,821 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 02:18:15,821 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 02:18:15,821 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 02:18:15,821 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 02:18:15,821 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 02:18:15,822 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 02:18:15,822 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 02:18:15,822 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 02:18:15,823 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 02:18:15,823 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 02:18:15,823 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 02:18:15,823 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 02:18:15,823 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 02:18:15,824 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 02:18:15,824 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 02:18:15,824 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 02:18:15,824 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 02:18:15,824 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 02:18:15,824 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 02:18:15,824 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 02:18:15,825 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 02:18:15,825 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 02:18:16,050 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 02:18:16,069 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 02:18:16,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 02:18:16,071 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 02:18:16,072 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 02:18:16,072 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-87.i [2023-12-21 02:18:17,205 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 02:18:17,331 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 02:18:17,331 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-87.i [2023-12-21 02:18:17,337 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99e115d77/7dd6449d105e466f9dda35b8fc068509/FLAGfc545d6e5 [2023-12-21 02:18:17,756 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99e115d77/7dd6449d105e466f9dda35b8fc068509 [2023-12-21 02:18:17,757 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 02:18:17,758 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 02:18:17,759 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 02:18:17,759 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 02:18:17,762 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 02:18:17,763 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 02:18:17" (1/1) ... [2023-12-21 02:18:17,763 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62fd7e85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:18:17, skipping insertion in model container [2023-12-21 02:18:17,763 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 02:18:17" (1/1) ... [2023-12-21 02:18:17,781 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 02:18:17,867 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-87.i[916,929] [2023-12-21 02:18:17,907 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 02:18:17,915 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 02:18:17,922 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-87.i[916,929] [2023-12-21 02:18:17,941 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 02:18:17,968 INFO L206 MainTranslator]: Completed translation [2023-12-21 02:18:17,971 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:18:17 WrapperNode [2023-12-21 02:18:17,971 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 02:18:17,973 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 02:18:17,973 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 02:18:17,973 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 02:18:17,979 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:18:17" (1/1) ... [2023-12-21 02:18:17,988 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:18:17" (1/1) ... [2023-12-21 02:18:18,029 INFO L138 Inliner]: procedures = 26, calls = 157, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 444 [2023-12-21 02:18:18,030 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 02:18:18,030 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 02:18:18,031 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 02:18:18,031 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 02:18:18,039 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:18:17" (1/1) ... [2023-12-21 02:18:18,039 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:18:17" (1/1) ... [2023-12-21 02:18:18,042 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:18:17" (1/1) ... [2023-12-21 02:18:18,057 INFO L175 MemorySlicer]: Split 119 memory accesses to 14 slices as follows [2, 3, 12, 16, 7, 10, 12, 16, 12, 8, 5, 5, 6, 5]. 13 percent of accesses are in the largest equivalence class. The 15 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 17 writes are split as follows [0, 1, 1, 1, 3, 1, 1, 1, 1, 3, 1, 1, 1, 1]. [2023-12-21 02:18:18,066 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:18:17" (1/1) ... [2023-12-21 02:18:18,066 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:18:17" (1/1) ... [2023-12-21 02:18:18,075 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:18:17" (1/1) ... [2023-12-21 02:18:18,080 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:18:17" (1/1) ... [2023-12-21 02:18:18,082 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:18:17" (1/1) ... [2023-12-21 02:18:18,084 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:18:17" (1/1) ... [2023-12-21 02:18:18,105 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 02:18:18,106 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 02:18:18,106 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 02:18:18,106 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 02:18:18,107 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:18:17" (1/1) ... [2023-12-21 02:18:18,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 02:18:18,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:18:18,149 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-21 02:18:18,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-21 02:18:18,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 02:18:18,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-21 02:18:18,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-21 02:18:18,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-12-21 02:18:18,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-12-21 02:18:18,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-12-21 02:18:18,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-12-21 02:18:18,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-12-21 02:18:18,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-12-21 02:18:18,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-12-21 02:18:18,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-12-21 02:18:18,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-12-21 02:18:18,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-12-21 02:18:18,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-12-21 02:18:18,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-12-21 02:18:18,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-21 02:18:18,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-21 02:18:18,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-12-21 02:18:18,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-12-21 02:18:18,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-12-21 02:18:18,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-12-21 02:18:18,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-12-21 02:18:18,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-12-21 02:18:18,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-12-21 02:18:18,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-12-21 02:18:18,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-12-21 02:18:18,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-12-21 02:18:18,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-12-21 02:18:18,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-12-21 02:18:18,186 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-21 02:18:18,186 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-21 02:18:18,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 02:18:18,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-21 02:18:18,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-21 02:18:18,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-21 02:18:18,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-21 02:18:18,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-21 02:18:18,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-21 02:18:18,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-21 02:18:18,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-21 02:18:18,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-21 02:18:18,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-21 02:18:18,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-21 02:18:18,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-12-21 02:18:18,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-12-21 02:18:18,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 02:18:18,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 02:18:18,317 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 02:18:18,318 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 02:18:18,588 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 02:18:18,680 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 02:18:18,680 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-21 02:18:18,681 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 02:18:18 BoogieIcfgContainer [2023-12-21 02:18:18,681 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 02:18:18,684 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 02:18:18,684 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 02:18:18,686 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 02:18:18,686 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 02:18:17" (1/3) ... [2023-12-21 02:18:18,687 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22ef98bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 02:18:18, skipping insertion in model container [2023-12-21 02:18:18,688 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:18:17" (2/3) ... [2023-12-21 02:18:18,688 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22ef98bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 02:18:18, skipping insertion in model container [2023-12-21 02:18:18,688 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 02:18:18" (3/3) ... [2023-12-21 02:18:18,690 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-87.i [2023-12-21 02:18:18,705 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 02:18:18,705 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 02:18:18,753 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 02:18:18,758 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;@16f9439b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 02:18:18,759 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 02:18:18,778 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 63 states have (on average 1.4126984126984128) internal successors, (89), 64 states have internal predecessors, (89), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-21 02:18:18,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-21 02:18:18,795 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:18:18,796 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:18:18,796 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:18:18,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:18:18,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1495594445, now seen corresponding path program 1 times [2023-12-21 02:18:18,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:18:18,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893939782] [2023-12-21 02:18:18,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:18:18,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:18:18,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:18:19,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:18:19,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893939782] [2023-12-21 02:18:19,043 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-21 02:18:19,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [275635719] [2023-12-21 02:18:19,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:18:19,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:18:19,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:18:19,058 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) [2023-12-21 02:18:19,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-21 02:18:19,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:18:19,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-21 02:18:19,244 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:18:19,268 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2023-12-21 02:18:19,268 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:18:19,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [275635719] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:18:19,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:18:19,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 02:18:19,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431203401] [2023-12-21 02:18:19,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:18:19,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-21 02:18:19,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:18:19,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-21 02:18:19,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 02:18:19,293 INFO L87 Difference]: Start difference. First operand has 80 states, 63 states have (on average 1.4126984126984128) internal successors, (89), 64 states have internal predecessors, (89), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 02:18:19,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:18:19,319 INFO L93 Difference]: Finished difference Result 157 states and 246 transitions. [2023-12-21 02:18:19,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-21 02:18:19,320 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 106 [2023-12-21 02:18:19,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:18:19,325 INFO L225 Difference]: With dead ends: 157 [2023-12-21 02:18:19,325 INFO L226 Difference]: Without dead ends: 78 [2023-12-21 02:18:19,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 02:18:19,329 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:18:19,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 106 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:18:19,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-12-21 02:18:19,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2023-12-21 02:18:19,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 62 states have (on average 1.3225806451612903) internal successors, (82), 62 states have internal predecessors, (82), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-21 02:18:19,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 110 transitions. [2023-12-21 02:18:19,355 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 110 transitions. Word has length 106 [2023-12-21 02:18:19,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:18:19,355 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 110 transitions. [2023-12-21 02:18:19,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 02:18:19,356 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 110 transitions. [2023-12-21 02:18:19,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-21 02:18:19,357 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:18:19,357 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:18:19,367 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-21 02:18:19,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-21 02:18:19,565 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:18:19,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:18:19,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1477731561, now seen corresponding path program 1 times [2023-12-21 02:18:19,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:18:19,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843209262] [2023-12-21 02:18:19,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:18:19,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:18:19,646 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:18:19,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1542789212] [2023-12-21 02:18:19,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:18:19,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:18:19,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:18:19,685 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) [2023-12-21 02:18:19,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-21 02:18:19,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:18:19,893 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 02:18:19,905 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:18:19,956 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 02:18:19,956 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:18:19,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:18:19,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843209262] [2023-12-21 02:18:19,957 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:18:19,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1542789212] [2023-12-21 02:18:19,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1542789212] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:18:19,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:18:19,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 02:18:19,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566190151] [2023-12-21 02:18:19,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:18:19,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 02:18:19,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:18:19,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 02:18:19,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 02:18:19,967 INFO L87 Difference]: Start difference. First operand 78 states and 110 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:18:20,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:18:20,030 INFO L93 Difference]: Finished difference Result 167 states and 236 transitions. [2023-12-21 02:18:20,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 02:18:20,032 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 106 [2023-12-21 02:18:20,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:18:20,034 INFO L225 Difference]: With dead ends: 167 [2023-12-21 02:18:20,034 INFO L226 Difference]: Without dead ends: 90 [2023-12-21 02:18:20,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:18:20,049 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 21 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:18:20,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 309 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:18:20,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-12-21 02:18:20,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 80. [2023-12-21 02:18:20,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 64 states have (on average 1.3125) internal successors, (84), 64 states have internal predecessors, (84), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-21 02:18:20,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 112 transitions. [2023-12-21 02:18:20,071 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 112 transitions. Word has length 106 [2023-12-21 02:18:20,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:18:20,073 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 112 transitions. [2023-12-21 02:18:20,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:18:20,073 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 112 transitions. [2023-12-21 02:18:20,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-21 02:18:20,078 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:18:20,078 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:18:20,086 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-21 02:18:20,286 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,SelfDestructingSolverStorable1 [2023-12-21 02:18:20,286 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:18:20,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:18:20,287 INFO L85 PathProgramCache]: Analyzing trace with hash 2007889109, now seen corresponding path program 1 times [2023-12-21 02:18:20,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:18:20,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622662249] [2023-12-21 02:18:20,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:18:20,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:18:20,335 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:18:20,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1118815690] [2023-12-21 02:18:20,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:18:20,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:18:20,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:18:20,336 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) [2023-12-21 02:18:20,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-21 02:18:20,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:18:20,488 INFO L262 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 02:18:20,490 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:18:20,511 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 02:18:20,511 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:18:20,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:18:20,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622662249] [2023-12-21 02:18:20,512 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:18:20,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118815690] [2023-12-21 02:18:20,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118815690] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:18:20,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:18:20,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 02:18:20,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079488608] [2023-12-21 02:18:20,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:18:20,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 02:18:20,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:18:20,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 02:18:20,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 02:18:20,514 INFO L87 Difference]: Start difference. First operand 80 states and 112 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:18:20,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:18:20,556 INFO L93 Difference]: Finished difference Result 167 states and 234 transitions. [2023-12-21 02:18:20,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 02:18:20,557 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 106 [2023-12-21 02:18:20,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:18:20,560 INFO L225 Difference]: With dead ends: 167 [2023-12-21 02:18:20,560 INFO L226 Difference]: Without dead ends: 88 [2023-12-21 02:18:20,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:18:20,563 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 12 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:18:20,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 307 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:18:20,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2023-12-21 02:18:20,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 82. [2023-12-21 02:18:20,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 66 states have (on average 1.303030303030303) internal successors, (86), 66 states have internal predecessors, (86), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-21 02:18:20,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 114 transitions. [2023-12-21 02:18:20,570 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 114 transitions. Word has length 106 [2023-12-21 02:18:20,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:18:20,570 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 114 transitions. [2023-12-21 02:18:20,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:18:20,571 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 114 transitions. [2023-12-21 02:18:20,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-21 02:18:20,571 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:18:20,572 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:18:20,582 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-21 02:18:20,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:18:20,782 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:18:20,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:18:20,782 INFO L85 PathProgramCache]: Analyzing trace with hash 2065147411, now seen corresponding path program 1 times [2023-12-21 02:18:20,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:18:20,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400384603] [2023-12-21 02:18:20,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:18:20,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:18:20,825 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:18:20,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1373803533] [2023-12-21 02:18:20,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:18:20,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:18:20,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:18:20,834 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) [2023-12-21 02:18:20,843 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-21 02:18:20,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:18:21,001 INFO L262 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 02:18:21,004 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:18:21,017 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 02:18:21,017 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:18:21,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:18:21,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400384603] [2023-12-21 02:18:21,017 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:18:21,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1373803533] [2023-12-21 02:18:21,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1373803533] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:18:21,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:18:21,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 02:18:21,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071023741] [2023-12-21 02:18:21,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:18:21,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 02:18:21,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:18:21,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 02:18:21,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 02:18:21,019 INFO L87 Difference]: Start difference. First operand 82 states and 114 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:18:21,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:18:21,086 INFO L93 Difference]: Finished difference Result 167 states and 232 transitions. [2023-12-21 02:18:21,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 02:18:21,086 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 106 [2023-12-21 02:18:21,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:18:21,087 INFO L225 Difference]: With dead ends: 167 [2023-12-21 02:18:21,087 INFO L226 Difference]: Without dead ends: 86 [2023-12-21 02:18:21,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:18:21,088 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 3 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:18:21,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 307 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:18:21,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-12-21 02:18:21,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 84. [2023-12-21 02:18:21,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 68 states have (on average 1.2941176470588236) internal successors, (88), 68 states have internal predecessors, (88), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-21 02:18:21,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 116 transitions. [2023-12-21 02:18:21,092 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 116 transitions. Word has length 106 [2023-12-21 02:18:21,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:18:21,093 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 116 transitions. [2023-12-21 02:18:21,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:18:21,093 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 116 transitions. [2023-12-21 02:18:21,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-21 02:18:21,094 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:18:21,094 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:18:21,112 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-21 02:18:21,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:18:21,300 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:18:21,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:18:21,300 INFO L85 PathProgramCache]: Analyzing trace with hash 2065206993, now seen corresponding path program 1 times [2023-12-21 02:18:21,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:18:21,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942746128] [2023-12-21 02:18:21,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:18:21,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:18:21,322 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:18:21,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [768062884] [2023-12-21 02:18:21,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:18:21,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:18:21,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:18:21,323 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) [2023-12-21 02:18:21,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-21 02:18:21,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:18:21,482 INFO L262 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 02:18:21,484 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:18:21,500 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 02:18:21,500 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:18:21,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:18:21,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942746128] [2023-12-21 02:18:21,500 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:18:21,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [768062884] [2023-12-21 02:18:21,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [768062884] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:18:21,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:18:21,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 02:18:21,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852779343] [2023-12-21 02:18:21,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:18:21,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 02:18:21,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:18:21,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 02:18:21,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 02:18:21,502 INFO L87 Difference]: Start difference. First operand 84 states and 116 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:18:21,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:18:21,523 INFO L93 Difference]: Finished difference Result 196 states and 271 transitions. [2023-12-21 02:18:21,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 02:18:21,524 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 106 [2023-12-21 02:18:21,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:18:21,525 INFO L225 Difference]: With dead ends: 196 [2023-12-21 02:18:21,525 INFO L226 Difference]: Without dead ends: 113 [2023-12-21 02:18:21,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:18:21,525 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 55 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:18:21,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 295 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:18:21,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-12-21 02:18:21,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 86. [2023-12-21 02:18:21,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 70 states have (on average 1.2857142857142858) internal successors, (90), 70 states have internal predecessors, (90), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-21 02:18:21,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 118 transitions. [2023-12-21 02:18:21,530 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 118 transitions. Word has length 106 [2023-12-21 02:18:21,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:18:21,530 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 118 transitions. [2023-12-21 02:18:21,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:18:21,530 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 118 transitions. [2023-12-21 02:18:21,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-21 02:18:21,531 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:18:21,531 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:18:21,537 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-21 02:18:21,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:18:21,742 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:18:21,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:18:21,743 INFO L85 PathProgramCache]: Analyzing trace with hash 196401453, now seen corresponding path program 1 times [2023-12-21 02:18:21,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:18:21,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393025631] [2023-12-21 02:18:21,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:18:21,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:18:21,799 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:18:21,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [249552709] [2023-12-21 02:18:21,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:18:21,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:18:21,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:18:21,814 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:18:21,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-21 02:18:21,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:18:22,002 INFO L262 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-21 02:18:22,007 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:18:22,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-12-21 02:18:22,096 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 02:18:22,097 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:18:22,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:18:22,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393025631] [2023-12-21 02:18:22,097 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:18:22,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [249552709] [2023-12-21 02:18:22,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [249552709] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:18:22,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:18:22,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 02:18:22,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310822443] [2023-12-21 02:18:22,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:18:22,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 02:18:22,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:18:22,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 02:18:22,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:18:22,101 INFO L87 Difference]: Start difference. First operand 86 states and 118 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:18:22,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:18:22,231 INFO L93 Difference]: Finished difference Result 252 states and 343 transitions. [2023-12-21 02:18:22,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 02:18:22,231 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 108 [2023-12-21 02:18:22,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:18:22,235 INFO L225 Difference]: With dead ends: 252 [2023-12-21 02:18:22,235 INFO L226 Difference]: Without dead ends: 167 [2023-12-21 02:18:22,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-12-21 02:18:22,238 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 154 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:18:22,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 560 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:18:22,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2023-12-21 02:18:22,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 149. [2023-12-21 02:18:22,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 124 states have (on average 1.282258064516129) internal successors, (159), 125 states have internal predecessors, (159), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-21 02:18:22,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 203 transitions. [2023-12-21 02:18:22,260 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 203 transitions. Word has length 108 [2023-12-21 02:18:22,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:18:22,260 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 203 transitions. [2023-12-21 02:18:22,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:18:22,261 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 203 transitions. [2023-12-21 02:18:22,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-21 02:18:22,262 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:18:22,262 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:18:22,274 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-21 02:18:22,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:18:22,475 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:18:22,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:18:22,476 INFO L85 PathProgramCache]: Analyzing trace with hash -538273384, now seen corresponding path program 1 times [2023-12-21 02:18:22,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:18:22,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367503231] [2023-12-21 02:18:22,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:18:22,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:18:22,507 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:18:22,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2092938769] [2023-12-21 02:18:22,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:18:22,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:18:22,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:18:22,519 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:18:22,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-21 02:18:22,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:18:22,675 INFO L262 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 02:18:22,678 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:18:22,701 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-12-21 02:18:22,710 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 02:18:22,710 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:18:22,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:18:22,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367503231] [2023-12-21 02:18:22,711 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:18:22,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2092938769] [2023-12-21 02:18:22,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2092938769] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:18:22,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:18:22,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:18:22,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787663003] [2023-12-21 02:18:22,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:18:22,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:18:22,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:18:22,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:18:22,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:18:22,712 INFO L87 Difference]: Start difference. First operand 149 states and 203 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:18:22,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:18:22,792 INFO L93 Difference]: Finished difference Result 491 states and 670 transitions. [2023-12-21 02:18:22,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 02:18:22,792 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 108 [2023-12-21 02:18:22,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:18:22,795 INFO L225 Difference]: With dead ends: 491 [2023-12-21 02:18:22,795 INFO L226 Difference]: Without dead ends: 343 [2023-12-21 02:18:22,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:18:22,797 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 161 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:18:22,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 516 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:18:22,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2023-12-21 02:18:22,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 166. [2023-12-21 02:18:22,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 141 states have (on average 1.3049645390070923) internal successors, (184), 142 states have internal predecessors, (184), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-21 02:18:22,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 228 transitions. [2023-12-21 02:18:22,815 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 228 transitions. Word has length 108 [2023-12-21 02:18:22,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:18:22,816 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 228 transitions. [2023-12-21 02:18:22,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:18:22,817 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 228 transitions. [2023-12-21 02:18:22,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-21 02:18:22,817 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:18:22,817 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:18:22,826 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-21 02:18:23,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:18:23,024 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:18:23,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:18:23,025 INFO L85 PathProgramCache]: Analyzing trace with hash 875914630, now seen corresponding path program 1 times [2023-12-21 02:18:23,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:18:23,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549010541] [2023-12-21 02:18:23,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:18:23,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:18:23,055 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:18:23,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [630219739] [2023-12-21 02:18:23,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:18:23,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:18:23,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:18:23,070 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:18:23,094 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-21 02:18:23,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:18:23,253 INFO L262 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-21 02:18:23,256 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:18:23,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-21 02:18:23,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-12-21 02:18:23,643 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2023-12-21 02:18:23,658 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-12-21 02:18:23,666 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 36 proven. 52 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2023-12-21 02:18:23,667 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 02:18:23,793 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2023-12-21 02:18:23,896 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 36 proven. 3 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-21 02:18:23,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:18:23,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549010541] [2023-12-21 02:18:23,896 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:18:23,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [630219739] [2023-12-21 02:18:23,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [630219739] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 02:18:23,896 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 02:18:23,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2023-12-21 02:18:23,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186515720] [2023-12-21 02:18:23,896 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 02:18:23,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-21 02:18:23,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:18:23,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-21 02:18:23,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2023-12-21 02:18:23,898 INFO L87 Difference]: Start difference. First operand 166 states and 228 transitions. Second operand has 15 states, 13 states have (on average 5.384615384615385) internal successors, (70), 14 states have internal predecessors, (70), 6 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 5 states have call predecessors, (28), 6 states have call successors, (28) [2023-12-21 02:18:24,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:18:24,382 INFO L93 Difference]: Finished difference Result 362 states and 497 transitions. [2023-12-21 02:18:24,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 02:18:24,383 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 5.384615384615385) internal successors, (70), 14 states have internal predecessors, (70), 6 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 5 states have call predecessors, (28), 6 states have call successors, (28) Word has length 109 [2023-12-21 02:18:24,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:18:24,384 INFO L225 Difference]: With dead ends: 362 [2023-12-21 02:18:24,384 INFO L226 Difference]: Without dead ends: 180 [2023-12-21 02:18:24,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=186, Invalid=464, Unknown=0, NotChecked=0, Total=650 [2023-12-21 02:18:24,386 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 266 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 02:18:24,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 467 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 02:18:24,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-12-21 02:18:24,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 173. [2023-12-21 02:18:24,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 135 states have (on average 1.237037037037037) internal successors, (167), 137 states have internal predecessors, (167), 34 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-21 02:18:24,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 235 transitions. [2023-12-21 02:18:24,399 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 235 transitions. Word has length 109 [2023-12-21 02:18:24,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:18:24,399 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 235 transitions. [2023-12-21 02:18:24,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 5.384615384615385) internal successors, (70), 14 states have internal predecessors, (70), 6 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 5 states have call predecessors, (28), 6 states have call successors, (28) [2023-12-21 02:18:24,399 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 235 transitions. [2023-12-21 02:18:24,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-21 02:18:24,400 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:18:24,400 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:18:24,410 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-21 02:18:24,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-12-21 02:18:24,608 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:18:24,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:18:24,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1610739743, now seen corresponding path program 1 times [2023-12-21 02:18:24,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:18:24,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948613601] [2023-12-21 02:18:24,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:18:24,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:18:24,637 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:18:24,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [918211874] [2023-12-21 02:18:24,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:18:24,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:18:24,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:18:24,639 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:18:24,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-21 02:18:24,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:18:24,842 INFO L262 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-21 02:18:24,850 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:18:25,102 INFO L349 Elim1Store]: treesize reduction 27, result has 35.7 percent of original size [2023-12-21 02:18:25,103 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 36 [2023-12-21 02:18:25,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2023-12-21 02:18:25,136 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2023-12-21 02:18:25,160 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 6 proven. 33 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-21 02:18:25,160 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 02:18:25,280 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 02:18:25,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:18:25,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948613601] [2023-12-21 02:18:25,280 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:18:25,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [918211874] [2023-12-21 02:18:25,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [918211874] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-21 02:18:25,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 02:18:25,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2023-12-21 02:18:25,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747915086] [2023-12-21 02:18:25,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:18:25,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 02:18:25,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:18:25,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 02:18:25,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2023-12-21 02:18:25,283 INFO L87 Difference]: Start difference. First operand 173 states and 235 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:18:25,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:18:25,431 INFO L93 Difference]: Finished difference Result 321 states and 433 transitions. [2023-12-21 02:18:25,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 02:18:25,433 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 110 [2023-12-21 02:18:25,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:18:25,435 INFO L225 Difference]: With dead ends: 321 [2023-12-21 02:18:25,435 INFO L226 Difference]: Without dead ends: 173 [2023-12-21 02:18:25,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2023-12-21 02:18:25,437 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 163 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:18:25,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 488 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:18:25,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2023-12-21 02:18:25,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2023-12-21 02:18:25,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 135 states have (on average 1.2222222222222223) internal successors, (165), 137 states have internal predecessors, (165), 34 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-21 02:18:25,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 233 transitions. [2023-12-21 02:18:25,452 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 233 transitions. Word has length 110 [2023-12-21 02:18:25,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:18:25,452 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 233 transitions. [2023-12-21 02:18:25,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:18:25,452 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 233 transitions. [2023-12-21 02:18:25,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-21 02:18:25,453 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:18:25,454 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:18:25,462 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-21 02:18:25,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:18:25,661 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:18:25,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:18:25,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1432588186, now seen corresponding path program 1 times [2023-12-21 02:18:25,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:18:25,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207007194] [2023-12-21 02:18:25,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:18:25,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:18:25,683 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:18:25,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [795329626] [2023-12-21 02:18:25,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:18:25,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:18:25,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:18:25,685 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:18:25,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-21 02:18:25,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:18:25,872 INFO L262 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-21 02:18:25,875 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:18:25,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-21 02:18:26,179 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-12-21 02:18:26,189 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 10 proven. 162 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2023-12-21 02:18:26,189 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 02:18:26,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2023-12-21 02:18:26,395 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 9 proven. 30 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-21 02:18:26,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:18:26,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207007194] [2023-12-21 02:18:26,396 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:18:26,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [795329626] [2023-12-21 02:18:26,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [795329626] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 02:18:26,396 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 02:18:26,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 16 [2023-12-21 02:18:26,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348762805] [2023-12-21 02:18:26,398 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 02:18:26,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-21 02:18:26,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:18:26,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-21 02:18:26,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2023-12-21 02:18:26,399 INFO L87 Difference]: Start difference. First operand 173 states and 233 transitions. Second operand has 16 states, 14 states have (on average 5.642857142857143) internal successors, (79), 15 states have internal predecessors, (79), 7 states have call successors, (28), 4 states have call predecessors, (28), 5 states have return successors, (28), 5 states have call predecessors, (28), 7 states have call successors, (28) [2023-12-21 02:18:26,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:18:26,656 INFO L93 Difference]: Finished difference Result 274 states and 356 transitions. [2023-12-21 02:18:26,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 02:18:26,657 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 5.642857142857143) internal successors, (79), 15 states have internal predecessors, (79), 7 states have call successors, (28), 4 states have call predecessors, (28), 5 states have return successors, (28), 5 states have call predecessors, (28), 7 states have call successors, (28) Word has length 113 [2023-12-21 02:18:26,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:18:26,658 INFO L225 Difference]: With dead ends: 274 [2023-12-21 02:18:26,658 INFO L226 Difference]: Without dead ends: 126 [2023-12-21 02:18:26,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=160, Invalid=440, Unknown=0, NotChecked=0, Total=600 [2023-12-21 02:18:26,659 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 121 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:18:26,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 355 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:18:26,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2023-12-21 02:18:26,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 122. [2023-12-21 02:18:26,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 90 states have (on average 1.1444444444444444) internal successors, (103), 91 states have internal predecessors, (103), 26 states have call successors, (26), 5 states have call predecessors, (26), 5 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-21 02:18:26,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 155 transitions. [2023-12-21 02:18:26,669 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 155 transitions. Word has length 113 [2023-12-21 02:18:26,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:18:26,670 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 155 transitions. [2023-12-21 02:18:26,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 5.642857142857143) internal successors, (79), 15 states have internal predecessors, (79), 7 states have call successors, (28), 4 states have call predecessors, (28), 5 states have return successors, (28), 5 states have call predecessors, (28), 7 states have call successors, (28) [2023-12-21 02:18:26,670 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 155 transitions. [2023-12-21 02:18:26,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-21 02:18:26,670 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:18:26,670 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:18:26,681 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-21 02:18:26,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-21 02:18:26,879 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:18:26,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:18:26,879 INFO L85 PathProgramCache]: Analyzing trace with hash -862587025, now seen corresponding path program 1 times [2023-12-21 02:18:26,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:18:26,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727266263] [2023-12-21 02:18:26,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:18:26,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:18:26,901 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:18:26,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1040998505] [2023-12-21 02:18:26,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:18:26,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:18:26,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:18:26,902 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:18:26,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-21 02:18:27,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:18:27,073 INFO L262 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-21 02:18:27,076 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:18:27,081 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-12-21 02:18:27,118 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 37 [2023-12-21 02:18:27,128 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 02:18:27,128 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:18:27,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:18:27,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727266263] [2023-12-21 02:18:27,129 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:18:27,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1040998505] [2023-12-21 02:18:27,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1040998505] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:18:27,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:18:27,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:18:27,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159469575] [2023-12-21 02:18:27,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:18:27,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:18:27,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:18:27,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:18:27,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:18:27,130 INFO L87 Difference]: Start difference. First operand 122 states and 155 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:18:27,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:18:27,175 INFO L93 Difference]: Finished difference Result 131 states and 163 transitions. [2023-12-21 02:18:27,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 02:18:27,176 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 114 [2023-12-21 02:18:27,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:18:27,177 INFO L225 Difference]: With dead ends: 131 [2023-12-21 02:18:27,177 INFO L226 Difference]: Without dead ends: 129 [2023-12-21 02:18:27,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:18:27,178 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 64 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:18:27,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 394 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:18:27,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2023-12-21 02:18:27,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 128. [2023-12-21 02:18:27,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 95 states have (on average 1.1368421052631579) internal successors, (108), 96 states have internal predecessors, (108), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-21 02:18:27,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 160 transitions. [2023-12-21 02:18:27,191 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 160 transitions. Word has length 114 [2023-12-21 02:18:27,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:18:27,193 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 160 transitions. [2023-12-21 02:18:27,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:18:27,193 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 160 transitions. [2023-12-21 02:18:27,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-21 02:18:27,193 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:18:27,193 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:18:27,202 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-21 02:18:27,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-21 02:18:27,401 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:18:27,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:18:27,401 INFO L85 PathProgramCache]: Analyzing trace with hash -862527443, now seen corresponding path program 1 times [2023-12-21 02:18:27,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:18:27,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030934469] [2023-12-21 02:18:27,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:18:27,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:18:27,421 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:18:27,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [763694245] [2023-12-21 02:18:27,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:18:27,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:18:27,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:18:27,422 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:18:27,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-21 02:18:27,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:18:27,594 INFO L262 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-21 02:18:27,597 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:18:27,609 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-12-21 02:18:27,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 37 [2023-12-21 02:18:27,647 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 02:18:27,647 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:18:27,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:18:27,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030934469] [2023-12-21 02:18:27,648 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:18:27,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763694245] [2023-12-21 02:18:27,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [763694245] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:18:27,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:18:27,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:18:27,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520358109] [2023-12-21 02:18:27,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:18:27,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:18:27,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:18:27,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:18:27,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:18:27,649 INFO L87 Difference]: Start difference. First operand 128 states and 160 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:18:27,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:18:27,703 INFO L93 Difference]: Finished difference Result 232 states and 284 transitions. [2023-12-21 02:18:27,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 02:18:27,703 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 114 [2023-12-21 02:18:27,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:18:27,704 INFO L225 Difference]: With dead ends: 232 [2023-12-21 02:18:27,704 INFO L226 Difference]: Without dead ends: 133 [2023-12-21 02:18:27,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:18:27,705 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 72 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:18:27,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 423 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:18:27,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2023-12-21 02:18:27,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 132. [2023-12-21 02:18:27,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 98 states have (on average 1.1224489795918366) internal successors, (110), 99 states have internal predecessors, (110), 26 states have call successors, (26), 7 states have call predecessors, (26), 7 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-21 02:18:27,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 162 transitions. [2023-12-21 02:18:27,716 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 162 transitions. Word has length 114 [2023-12-21 02:18:27,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:18:27,716 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 162 transitions. [2023-12-21 02:18:27,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:18:27,716 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 162 transitions. [2023-12-21 02:18:27,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-21 02:18:27,717 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:18:27,717 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:18:27,726 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-12-21 02:18:27,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-21 02:18:27,923 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:18:27,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:18:27,924 INFO L85 PathProgramCache]: Analyzing trace with hash -805269141, now seen corresponding path program 1 times [2023-12-21 02:18:27,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:18:27,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294469714] [2023-12-21 02:18:27,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:18:27,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:18:27,947 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:18:27,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [994342695] [2023-12-21 02:18:27,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:18:27,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:18:27,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:18:27,951 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:18:27,974 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-21 02:18:28,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:18:28,129 INFO L262 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-21 02:18:28,131 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:18:28,151 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-12-21 02:18:28,182 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 02:18:28,183 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:18:28,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:18:28,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294469714] [2023-12-21 02:18:28,183 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:18:28,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [994342695] [2023-12-21 02:18:28,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [994342695] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:18:28,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:18:28,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:18:28,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731218697] [2023-12-21 02:18:28,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:18:28,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:18:28,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:18:28,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:18:28,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:18:28,184 INFO L87 Difference]: Start difference. First operand 132 states and 162 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:18:28,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:18:28,230 INFO L93 Difference]: Finished difference Result 239 states and 287 transitions. [2023-12-21 02:18:28,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 02:18:28,231 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 114 [2023-12-21 02:18:28,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:18:28,231 INFO L225 Difference]: With dead ends: 239 [2023-12-21 02:18:28,231 INFO L226 Difference]: Without dead ends: 136 [2023-12-21 02:18:28,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:18:28,232 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 65 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:18:28,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 255 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:18:28,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2023-12-21 02:18:28,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2023-12-21 02:18:28,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 101 states have (on average 1.108910891089109) internal successors, (112), 102 states have internal predecessors, (112), 26 states have call successors, (26), 8 states have call predecessors, (26), 8 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-21 02:18:28,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 164 transitions. [2023-12-21 02:18:28,241 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 164 transitions. Word has length 114 [2023-12-21 02:18:28,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:18:28,241 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 164 transitions. [2023-12-21 02:18:28,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:18:28,241 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 164 transitions. [2023-12-21 02:18:28,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-21 02:18:28,242 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:18:28,242 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:18:28,250 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-12-21 02:18:28,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-12-21 02:18:28,448 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:18:28,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:18:28,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1614615767, now seen corresponding path program 1 times [2023-12-21 02:18:28,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:18:28,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801254605] [2023-12-21 02:18:28,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:18:28,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:18:28,465 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:18:28,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [968432409] [2023-12-21 02:18:28,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:18:28,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:18:28,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:18:28,466 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:18:28,490 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-21 02:18:28,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:18:28,644 INFO L262 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-21 02:18:28,647 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:18:28,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-12-21 02:18:28,676 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 02:18:28,676 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:18:28,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:18:28,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801254605] [2023-12-21 02:18:28,677 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:18:28,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [968432409] [2023-12-21 02:18:28,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [968432409] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:18:28,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:18:28,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 02:18:28,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729240139] [2023-12-21 02:18:28,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:18:28,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 02:18:28,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:18:28,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 02:18:28,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:18:28,678 INFO L87 Difference]: Start difference. First operand 136 states and 164 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:18:28,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:18:28,747 INFO L93 Difference]: Finished difference Result 310 states and 369 transitions. [2023-12-21 02:18:28,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 02:18:28,747 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 114 [2023-12-21 02:18:28,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:18:28,748 INFO L225 Difference]: With dead ends: 310 [2023-12-21 02:18:28,748 INFO L226 Difference]: Without dead ends: 207 [2023-12-21 02:18:28,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-21 02:18:28,749 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 83 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:18:28,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 506 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:18:28,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2023-12-21 02:18:28,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 199. [2023-12-21 02:18:28,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 156 states have (on average 1.1282051282051282) internal successors, (176), 158 states have internal predecessors, (176), 32 states have call successors, (32), 10 states have call predecessors, (32), 10 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-21 02:18:28,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 240 transitions. [2023-12-21 02:18:28,761 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 240 transitions. Word has length 114 [2023-12-21 02:18:28,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:18:28,762 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 240 transitions. [2023-12-21 02:18:28,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:18:28,762 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 240 transitions. [2023-12-21 02:18:28,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-21 02:18:28,762 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:18:28,762 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:18:28,771 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-12-21 02:18:28,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:18:28,969 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:18:28,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:18:28,970 INFO L85 PathProgramCache]: Analyzing trace with hash -955099930, now seen corresponding path program 1 times [2023-12-21 02:18:28,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:18:28,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432056400] [2023-12-21 02:18:28,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:18:28,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:18:28,991 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:18:28,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [682877210] [2023-12-21 02:18:28,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:18:28,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:18:28,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:18:28,992 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:18:29,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-21 02:18:29,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:18:29,188 INFO L262 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-21 02:18:29,191 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:18:29,239 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-21 02:18:29,521 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-12-21 02:18:29,529 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 10 proven. 162 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2023-12-21 02:18:29,529 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 02:18:29,713 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2023-12-21 02:18:29,737 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 9 proven. 30 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-21 02:18:29,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:18:29,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432056400] [2023-12-21 02:18:29,737 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:18:29,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [682877210] [2023-12-21 02:18:29,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [682877210] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 02:18:29,737 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 02:18:29,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 16 [2023-12-21 02:18:29,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776830490] [2023-12-21 02:18:29,738 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 02:18:29,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-21 02:18:29,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:18:29,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-21 02:18:29,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2023-12-21 02:18:29,739 INFO L87 Difference]: Start difference. First operand 199 states and 240 transitions. Second operand has 16 states, 14 states have (on average 6.357142857142857) internal successors, (89), 15 states have internal predecessors, (89), 7 states have call successors, (28), 4 states have call predecessors, (28), 5 states have return successors, (28), 5 states have call predecessors, (28), 7 states have call successors, (28) [2023-12-21 02:18:30,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:18:30,067 INFO L93 Difference]: Finished difference Result 349 states and 413 transitions. [2023-12-21 02:18:30,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 02:18:30,067 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 6.357142857142857) internal successors, (89), 15 states have internal predecessors, (89), 7 states have call successors, (28), 4 states have call predecessors, (28), 5 states have return successors, (28), 5 states have call predecessors, (28), 7 states have call successors, (28) Word has length 114 [2023-12-21 02:18:30,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:18:30,071 INFO L225 Difference]: With dead ends: 349 [2023-12-21 02:18:30,071 INFO L226 Difference]: Without dead ends: 183 [2023-12-21 02:18:30,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=160, Invalid=440, Unknown=0, NotChecked=0, Total=600 [2023-12-21 02:18:30,073 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 189 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:18:30,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 261 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:18:30,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2023-12-21 02:18:30,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 177. [2023-12-21 02:18:30,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 134 states have (on average 1.0746268656716418) internal successors, (144), 136 states have internal predecessors, (144), 32 states have call successors, (32), 10 states have call predecessors, (32), 10 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-21 02:18:30,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 208 transitions. [2023-12-21 02:18:30,084 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 208 transitions. Word has length 114 [2023-12-21 02:18:30,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:18:30,084 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 208 transitions. [2023-12-21 02:18:30,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 6.357142857142857) internal successors, (89), 15 states have internal predecessors, (89), 7 states have call successors, (28), 4 states have call predecessors, (28), 5 states have return successors, (28), 5 states have call predecessors, (28), 7 states have call successors, (28) [2023-12-21 02:18:30,085 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 208 transitions. [2023-12-21 02:18:30,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-21 02:18:30,085 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:18:30,085 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:18:30,092 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-12-21 02:18:30,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-12-21 02:18:30,291 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:18:30,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:18:30,292 INFO L85 PathProgramCache]: Analyzing trace with hash 95165677, now seen corresponding path program 1 times [2023-12-21 02:18:30,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:18:30,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244525582] [2023-12-21 02:18:30,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:18:30,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:18:30,316 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:18:30,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1596472607] [2023-12-21 02:18:30,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:18:30,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:18:30,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:18:30,318 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:18:30,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-21 02:18:30,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:18:30,634 INFO L262 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-21 02:18:30,636 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:18:30,679 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2023-12-21 02:18:30,682 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2023-12-21 02:18:30,688 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 02:18:30,688 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:18:30,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:18:30,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244525582] [2023-12-21 02:18:30,688 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:18:30,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1596472607] [2023-12-21 02:18:30,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1596472607] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:18:30,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:18:30,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:18:30,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890481667] [2023-12-21 02:18:30,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:18:30,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:18:30,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:18:30,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:18:30,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:18:30,690 INFO L87 Difference]: Start difference. First operand 177 states and 208 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:18:30,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:18:30,752 INFO L93 Difference]: Finished difference Result 358 states and 413 transitions. [2023-12-21 02:18:30,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 02:18:30,753 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 115 [2023-12-21 02:18:30,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:18:30,753 INFO L225 Difference]: With dead ends: 358 [2023-12-21 02:18:30,754 INFO L226 Difference]: Without dead ends: 214 [2023-12-21 02:18:30,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:18:30,754 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 34 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:18:30,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 362 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:18:30,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2023-12-21 02:18:30,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 188. [2023-12-21 02:18:30,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 145 states have (on average 1.0620689655172413) internal successors, (154), 147 states have internal predecessors, (154), 32 states have call successors, (32), 10 states have call predecessors, (32), 10 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-21 02:18:30,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 218 transitions. [2023-12-21 02:18:30,767 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 218 transitions. Word has length 115 [2023-12-21 02:18:30,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:18:30,767 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 218 transitions. [2023-12-21 02:18:30,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:18:30,767 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 218 transitions. [2023-12-21 02:18:30,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-21 02:18:30,768 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:18:30,768 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:18:30,788 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-12-21 02:18:30,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-12-21 02:18:30,975 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:18:30,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:18:30,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1981869764, now seen corresponding path program 1 times [2023-12-21 02:18:30,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:18:30,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013190664] [2023-12-21 02:18:30,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:18:30,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:18:30,992 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:18:30,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1155149546] [2023-12-21 02:18:30,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:18:30,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:18:30,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:18:30,993 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:18:31,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-12-21 02:18:31,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:18:31,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-21 02:18:31,304 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:18:31,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2023-12-21 02:18:31,360 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2023-12-21 02:18:31,369 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 02:18:31,369 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:18:31,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:18:31,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013190664] [2023-12-21 02:18:31,369 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:18:31,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155149546] [2023-12-21 02:18:31,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1155149546] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:18:31,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:18:31,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:18:31,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830152472] [2023-12-21 02:18:31,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:18:31,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:18:31,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:18:31,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:18:31,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:18:31,371 INFO L87 Difference]: Start difference. First operand 188 states and 218 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:18:31,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:18:31,430 INFO L93 Difference]: Finished difference Result 351 states and 401 transitions. [2023-12-21 02:18:31,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 02:18:31,444 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 116 [2023-12-21 02:18:31,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:18:31,445 INFO L225 Difference]: With dead ends: 351 [2023-12-21 02:18:31,445 INFO L226 Difference]: Without dead ends: 196 [2023-12-21 02:18:31,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:18:31,446 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 20 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:18:31,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 286 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:18:31,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2023-12-21 02:18:31,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 188. [2023-12-21 02:18:31,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 145 states have (on average 1.0551724137931036) internal successors, (153), 147 states have internal predecessors, (153), 32 states have call successors, (32), 10 states have call predecessors, (32), 10 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-21 02:18:31,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 217 transitions. [2023-12-21 02:18:31,462 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 217 transitions. Word has length 116 [2023-12-21 02:18:31,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:18:31,462 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 217 transitions. [2023-12-21 02:18:31,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:18:31,462 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 217 transitions. [2023-12-21 02:18:31,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-21 02:18:31,463 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:18:31,463 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:18:31,472 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-12-21 02:18:31,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-12-21 02:18:31,671 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:18:31,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:18:31,672 INFO L85 PathProgramCache]: Analyzing trace with hash 109363080, now seen corresponding path program 1 times [2023-12-21 02:18:31,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:18:31,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450645763] [2023-12-21 02:18:31,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:18:31,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:18:31,690 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:18:31,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [82826372] [2023-12-21 02:18:31,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:18:31,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:18:31,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:18:31,696 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:18:31,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-12-21 02:18:31,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:18:31,899 INFO L262 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-21 02:18:31,916 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:18:31,931 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17 [2023-12-21 02:18:31,976 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 6 proven. 33 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-21 02:18:31,976 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 02:18:32,033 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 02:18:32,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:18:32,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450645763] [2023-12-21 02:18:32,033 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:18:32,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82826372] [2023-12-21 02:18:32,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [82826372] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-21 02:18:32,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 02:18:32,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 11 [2023-12-21 02:18:32,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887105100] [2023-12-21 02:18:32,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:18:32,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 02:18:32,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:18:32,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 02:18:32,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-21 02:18:32,034 INFO L87 Difference]: Start difference. First operand 188 states and 217 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:18:32,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:18:32,163 INFO L93 Difference]: Finished difference Result 363 states and 412 transitions. [2023-12-21 02:18:32,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 02:18:32,163 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 117 [2023-12-21 02:18:32,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:18:32,164 INFO L225 Difference]: With dead ends: 363 [2023-12-21 02:18:32,164 INFO L226 Difference]: Without dead ends: 208 [2023-12-21 02:18:32,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2023-12-21 02:18:32,165 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 85 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:18:32,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 643 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:18:32,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2023-12-21 02:18:32,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 200. [2023-12-21 02:18:32,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 154 states have (on average 1.051948051948052) internal successors, (162), 156 states have internal predecessors, (162), 34 states have call successors, (34), 11 states have call predecessors, (34), 11 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-21 02:18:32,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 230 transitions. [2023-12-21 02:18:32,177 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 230 transitions. Word has length 117 [2023-12-21 02:18:32,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:18:32,178 INFO L495 AbstractCegarLoop]: Abstraction has 200 states and 230 transitions. [2023-12-21 02:18:32,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:18:32,178 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 230 transitions. [2023-12-21 02:18:32,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-21 02:18:32,179 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:18:32,179 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:18:32,208 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-12-21 02:18:32,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-12-21 02:18:32,385 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:18:32,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:18:32,386 INFO L85 PathProgramCache]: Analyzing trace with hash 367528518, now seen corresponding path program 1 times [2023-12-21 02:18:32,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:18:32,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696397119] [2023-12-21 02:18:32,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:18:32,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:18:32,411 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:18:32,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2074401033] [2023-12-21 02:18:32,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:18:32,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:18:32,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:18:32,412 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:18:32,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-12-21 02:18:32,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:18:32,723 INFO L262 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-21 02:18:32,726 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:18:32,731 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-21 02:18:32,777 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2023-12-21 02:18:32,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2023-12-21 02:18:32,781 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2023-12-21 02:18:32,789 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 02:18:32,789 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:18:32,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:18:32,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696397119] [2023-12-21 02:18:32,789 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:18:32,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074401033] [2023-12-21 02:18:32,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2074401033] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:18:32,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:18:32,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:18:32,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830128379] [2023-12-21 02:18:32,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:18:32,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:18:32,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:18:32,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:18:32,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:18:32,790 INFO L87 Difference]: Start difference. First operand 200 states and 230 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:18:32,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:18:32,892 INFO L93 Difference]: Finished difference Result 372 states and 421 transitions. [2023-12-21 02:18:32,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 02:18:32,893 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 117 [2023-12-21 02:18:32,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:18:32,893 INFO L225 Difference]: With dead ends: 372 [2023-12-21 02:18:32,893 INFO L226 Difference]: Without dead ends: 205 [2023-12-21 02:18:32,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:18:32,894 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 60 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:18:32,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 323 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:18:32,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2023-12-21 02:18:32,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 190. [2023-12-21 02:18:32,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 144 states have (on average 1.0347222222222223) internal successors, (149), 146 states have internal predecessors, (149), 34 states have call successors, (34), 11 states have call predecessors, (34), 11 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-21 02:18:32,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 217 transitions. [2023-12-21 02:18:32,907 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 217 transitions. Word has length 117 [2023-12-21 02:18:32,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:18:32,907 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 217 transitions. [2023-12-21 02:18:32,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:18:32,907 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 217 transitions. [2023-12-21 02:18:32,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-21 02:18:32,907 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:18:32,907 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:18:32,915 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-12-21 02:18:33,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:18:33,115 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:18:33,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:18:33,115 INFO L85 PathProgramCache]: Analyzing trace with hash -24650426, now seen corresponding path program 1 times [2023-12-21 02:18:33,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:18:33,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344651947] [2023-12-21 02:18:33,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:18:33,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:18:33,130 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:18:33,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1326922089] [2023-12-21 02:18:33,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:18:33,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:18:33,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:18:33,132 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:18:33,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-12-21 02:18:33,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:18:33,461 INFO L262 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-21 02:18:33,464 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:18:33,468 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-21 02:18:33,511 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 25 [2023-12-21 02:18:33,515 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2023-12-21 02:18:33,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2023-12-21 02:18:33,525 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 02:18:33,525 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:18:33,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:18:33,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344651947] [2023-12-21 02:18:33,525 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:18:33,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1326922089] [2023-12-21 02:18:33,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1326922089] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:18:33,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:18:33,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:18:33,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873940412] [2023-12-21 02:18:33,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:18:33,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:18:33,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:18:33,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:18:33,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:18:33,526 INFO L87 Difference]: Start difference. First operand 190 states and 217 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:18:33,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:18:33,680 INFO L93 Difference]: Finished difference Result 383 states and 432 transitions. [2023-12-21 02:18:33,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 02:18:33,681 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 117 [2023-12-21 02:18:33,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:18:33,682 INFO L225 Difference]: With dead ends: 383 [2023-12-21 02:18:33,682 INFO L226 Difference]: Without dead ends: 226 [2023-12-21 02:18:33,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:18:33,683 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 57 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:18:33,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 391 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:18:33,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2023-12-21 02:18:33,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 190. [2023-12-21 02:18:33,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 144 states have (on average 1.0277777777777777) internal successors, (148), 146 states have internal predecessors, (148), 34 states have call successors, (34), 11 states have call predecessors, (34), 11 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-21 02:18:33,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 216 transitions. [2023-12-21 02:18:33,698 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 216 transitions. Word has length 117 [2023-12-21 02:18:33,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:18:33,698 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 216 transitions. [2023-12-21 02:18:33,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:18:33,699 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 216 transitions. [2023-12-21 02:18:33,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-21 02:18:33,699 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:18:33,699 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:18:33,707 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-12-21 02:18:33,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:18:33,907 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:18:33,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:18:33,907 INFO L85 PathProgramCache]: Analyzing trace with hash 233515012, now seen corresponding path program 1 times [2023-12-21 02:18:33,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:18:33,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181461814] [2023-12-21 02:18:33,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:18:33,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:18:33,924 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:18:33,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1090861150] [2023-12-21 02:18:33,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:18:33,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:18:33,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:18:33,926 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:18:33,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-12-21 02:18:34,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:18:34,142 INFO L262 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-21 02:18:34,144 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:18:34,147 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-12-21 02:18:34,179 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 02:18:34,179 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:18:34,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:18:34,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181461814] [2023-12-21 02:18:34,180 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:18:34,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1090861150] [2023-12-21 02:18:34,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1090861150] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:18:34,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:18:34,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 02:18:34,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58962822] [2023-12-21 02:18:34,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:18:34,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 02:18:34,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:18:34,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 02:18:34,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:18:34,181 INFO L87 Difference]: Start difference. First operand 190 states and 216 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:18:34,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:18:34,280 INFO L93 Difference]: Finished difference Result 344 states and 386 transitions. [2023-12-21 02:18:34,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 02:18:34,280 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 117 [2023-12-21 02:18:34,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:18:34,280 INFO L225 Difference]: With dead ends: 344 [2023-12-21 02:18:34,280 INFO L226 Difference]: Without dead ends: 0 [2023-12-21 02:18:34,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2023-12-21 02:18:34,281 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 60 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:18:34,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 536 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:18:34,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-21 02:18:34,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-21 02:18:34,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 02:18:34,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-21 02:18:34,282 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 117 [2023-12-21 02:18:34,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:18:34,282 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-21 02:18:34,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 02:18:34,282 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-21 02:18:34,282 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-21 02:18:34,284 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-21 02:18:34,291 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-12-21 02:18:34,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:18:34,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-21 02:18:36,661 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-12-21 02:18:36,661 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-12-21 02:18:36,661 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-12-21 02:18:36,661 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-12-21 02:18:36,661 INFO L895 garLoopResultBuilder]: At program point L93(line 93) the Hoare annotation is: (and (<= (mod (select (select |#memory_int#3| ~var_1_4_Pointer~0.base) 0) 4294967296) 2147483647) (= |~#var_1_14~0.offset| 0) (= |~#var_1_14~0.base| ~var_1_14_Pointer~0.base) (= |~#var_1_4~0.base| ~var_1_4_Pointer~0.base) (= |~#var_1_4~0.offset| 0) (= ~var_1_14_Pointer~0.offset 0) (<= 1 (mod (select (select |#memory_int#11| ~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset) 256)) (= ~var_1_4_Pointer~0.offset 0)) [2023-12-21 02:18:36,661 INFO L899 garLoopResultBuilder]: For program point L93-1(line 93) no Hoare annotation was computed. [2023-12-21 02:18:36,662 INFO L899 garLoopResultBuilder]: For program point L60(lines 60 68) no Hoare annotation was computed. [2023-12-21 02:18:36,662 INFO L899 garLoopResultBuilder]: For program point L60-1(lines 60 68) no Hoare annotation was computed. [2023-12-21 02:18:36,662 INFO L895 garLoopResultBuilder]: At program point L85(line 85) the Hoare annotation is: (let ((.cse12 (select (select |#memory_int#11| ~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset)) (.cse10 (select (select |#memory_int#7| ~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset))) (let ((.cse0 (= |~#var_1_14~0.offset| 0)) (.cse1 (= |~#var_1_14~0.base| ~var_1_14_Pointer~0.base)) (.cse2 (= |~#var_1_4~0.base| ~var_1_4_Pointer~0.base)) (.cse3 (= (select (select |#memory_int#10| ~var_1_12_Pointer~0.base) ~var_1_12_Pointer~0.offset) .cse10)) (.cse4 (= |~#var_1_4~0.offset| 0)) (.cse5 (= |ULTIMATE.start_updateVariables_#t~mem43#1| (select (select |#memory_int#3| ~var_1_4_Pointer~0.base) 0))) (.cse6 (= ~var_1_14_Pointer~0.offset 0)) (.cse7 (<= 1 (mod .cse12 256))) (.cse11 (= ~var_1_4_Pointer~0.offset 0)) (.cse8 (select (select |#memory_int#8| ~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset)) (.cse9 (select (select |#memory_int#13| ~var_1_15_Pointer~0.base) ~var_1_15_Pointer~0.offset))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (<= (mod (+ 4294967295 .cse8) 4294967296) (mod (* .cse9 .cse10) 4294967296)) .cse11) (and (= (select (select |#memory_int#4| ~var_1_5_Pointer~0.base) ~var_1_5_Pointer~0.offset) .cse10) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (= .cse12 (select (select |#memory_int#12| ~var_1_14_Pointer~0.base) 0)) .cse11 (= .cse8 .cse9) (= (select (select |#memory_int#6| ~var_1_7_Pointer~0.base) ~var_1_7_Pointer~0.offset) (select (select |#memory_int#9| ~var_1_10_Pointer~0.base) ~var_1_10_Pointer~0.offset)))))) [2023-12-21 02:18:36,662 INFO L899 garLoopResultBuilder]: For program point L85-1(line 85) no Hoare annotation was computed. [2023-12-21 02:18:36,662 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-12-21 02:18:36,662 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-12-21 02:18:36,662 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-12-21 02:18:36,662 INFO L899 garLoopResultBuilder]: For program point L69(lines 69 77) no Hoare annotation was computed. [2023-12-21 02:18:36,662 INFO L895 garLoopResultBuilder]: At program point L94(line 94) the Hoare annotation is: (and (<= (mod (select (select |#memory_int#3| ~var_1_4_Pointer~0.base) 0) 4294967296) 2147483647) (= |~#var_1_14~0.offset| 0) (= |~#var_1_14~0.base| ~var_1_14_Pointer~0.base) (= |~#var_1_4~0.base| ~var_1_4_Pointer~0.base) (= |~#var_1_4~0.offset| 0) (= ~var_1_14_Pointer~0.offset 0) (<= 1 (mod (select (select |#memory_int#11| ~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset) 256)) (= ~var_1_4_Pointer~0.offset 0)) [2023-12-21 02:18:36,662 INFO L899 garLoopResultBuilder]: For program point L94-1(line 94) no Hoare annotation was computed. [2023-12-21 02:18:36,662 INFO L899 garLoopResultBuilder]: For program point L61(lines 61 65) no Hoare annotation was computed. [2023-12-21 02:18:36,662 INFO L899 garLoopResultBuilder]: For program point L70(lines 70 74) no Hoare annotation was computed. [2023-12-21 02:18:36,662 INFO L899 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2023-12-21 02:18:36,662 INFO L899 garLoopResultBuilder]: For program point L62-2(line 62) no Hoare annotation was computed. [2023-12-21 02:18:36,662 INFO L899 garLoopResultBuilder]: For program point L62-3(line 62) no Hoare annotation was computed. [2023-12-21 02:18:36,662 INFO L899 garLoopResultBuilder]: For program point L62-5(line 62) no Hoare annotation was computed. [2023-12-21 02:18:36,662 INFO L895 garLoopResultBuilder]: At program point L87(line 87) the Hoare annotation is: (let ((.cse9 (select (select |#memory_int#11| ~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset)) (.cse1 (select (select |#memory_int#7| ~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset))) (let ((.cse0 (<= (mod (select (select |#memory_int#3| ~var_1_4_Pointer~0.base) 0) 4294967296) 2147483647)) (.cse2 (= |~#var_1_14~0.offset| 0)) (.cse3 (= |~#var_1_14~0.base| ~var_1_14_Pointer~0.base)) (.cse4 (= |~#var_1_4~0.base| ~var_1_4_Pointer~0.base)) (.cse5 (= (select (select |#memory_int#10| ~var_1_12_Pointer~0.base) ~var_1_12_Pointer~0.offset) .cse1)) (.cse6 (= |~#var_1_4~0.offset| 0)) (.cse7 (= ~var_1_14_Pointer~0.offset 0)) (.cse8 (<= 1 (mod .cse9 256))) (.cse11 (select (select |#memory_int#8| ~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset)) (.cse12 (select (select |#memory_int#13| ~var_1_15_Pointer~0.base) ~var_1_15_Pointer~0.offset)) (.cse10 (= ~var_1_4_Pointer~0.offset 0))) (or (and .cse0 (= (select (select |#memory_int#4| ~var_1_5_Pointer~0.base) ~var_1_5_Pointer~0.offset) .cse1) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (= .cse9 (select (select |#memory_int#12| ~var_1_14_Pointer~0.base) 0)) .cse10 (= .cse11 .cse12) (= (select (select |#memory_int#6| ~var_1_7_Pointer~0.base) ~var_1_7_Pointer~0.offset) (select (select |#memory_int#9| ~var_1_10_Pointer~0.base) ~var_1_10_Pointer~0.offset))) (and .cse0 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (<= (mod (+ 4294967295 .cse11) 4294967296) (mod (* .cse12 .cse1) 4294967296)) .cse10)))) [2023-12-21 02:18:36,663 INFO L899 garLoopResultBuilder]: For program point L87-1(line 87) no Hoare annotation was computed. [2023-12-21 02:18:36,663 INFO L895 garLoopResultBuilder]: At program point L112-2(lines 112 118) the Hoare annotation is: (let ((.cse21 (select (select |#memory_int#3| ~var_1_4_Pointer~0.base) 0))) (let ((.cse17 (select (select |#memory_int#8| ~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset)) (.cse19 (select (select |#memory_int#13| ~var_1_15_Pointer~0.base) ~var_1_15_Pointer~0.offset)) (.cse20 (select (select |#memory_int#11| ~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset)) (.cse15 (select (select |#memory_int#2| ~var_1_3_Pointer~0.base) ~var_1_3_Pointer~0.offset)) (.cse18 (select (select |#memory_int#7| ~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset)) (.cse14 (mod .cse21 4294967296))) (let ((.cse0 (<= .cse14 2147483647)) (.cse1 (= (select (select |#memory_int#4| ~var_1_5_Pointer~0.base) ~var_1_5_Pointer~0.offset) .cse18)) (.cse2 (= |~#var_1_14~0.offset| 0)) (.cse3 (= |~#var_1_14~0.base| ~var_1_14_Pointer~0.base)) (.cse4 (= |~#var_1_4~0.base| ~var_1_4_Pointer~0.base)) (.cse5 (= (mod (+ .cse15 (* .cse21 4294967295)) 4294967296) (mod (select (select |#memory_int#1| ~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset) 4294967296))) (.cse6 (= (select (select |#memory_int#10| ~var_1_12_Pointer~0.base) ~var_1_12_Pointer~0.offset) .cse18)) (.cse7 (= |~#var_1_4~0.offset| 0)) (.cse8 (= ~var_1_14_Pointer~0.offset 0)) (.cse9 (<= 1 (mod .cse20 256))) (.cse10 (= .cse20 (select (select |#memory_int#12| ~var_1_14_Pointer~0.base) 0))) (.cse16 (<= (mod (+ 4294967295 .cse17) 4294967296) (mod (* .cse19 .cse18) 4294967296))) (.cse11 (= ~var_1_4_Pointer~0.offset 0)) (.cse12 (= .cse17 .cse19)) (.cse13 (select (select |#memory_int#9| ~var_1_10_Pointer~0.base) ~var_1_10_Pointer~0.offset))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 (= (select (select |#memory_int#6| ~var_1_7_Pointer~0.base) ~var_1_7_Pointer~0.offset) .cse13)) (and .cse0 (<= (+ .cse14 1) (mod (* .cse15 ~last_1_var_1_10~0) 4294967296)) .cse2 .cse3 .cse4 .cse6 .cse7 .cse8 .cse9 .cse16 .cse11) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse16 .cse11 .cse12 (= (+ .cse17 .cse13) .cse18)))))) [2023-12-21 02:18:36,663 INFO L899 garLoopResultBuilder]: For program point L112-3(lines 112 118) no Hoare annotation was computed. [2023-12-21 02:18:36,663 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-21 02:18:36,663 INFO L895 garLoopResultBuilder]: At program point L96(line 96) the Hoare annotation is: (and (<= (mod (select (select |#memory_int#3| ~var_1_4_Pointer~0.base) 0) 4294967296) 2147483647) (= |~#var_1_14~0.offset| 0) (= |~#var_1_14~0.base| ~var_1_14_Pointer~0.base) (= |~#var_1_4~0.base| ~var_1_4_Pointer~0.base) (= |~#var_1_4~0.offset| 0) (= ~var_1_14_Pointer~0.offset 0) (<= 1 (mod (select (select |#memory_int#11| ~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset) 256)) (= ~var_1_4_Pointer~0.offset 0)) [2023-12-21 02:18:36,663 INFO L899 garLoopResultBuilder]: For program point L96-1(line 96) no Hoare annotation was computed. [2023-12-21 02:18:36,663 INFO L895 garLoopResultBuilder]: At program point L88(line 88) the Hoare annotation is: (let ((.cse9 (select (select |#memory_int#11| ~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset)) (.cse1 (select (select |#memory_int#7| ~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset))) (let ((.cse0 (<= (mod (select (select |#memory_int#3| ~var_1_4_Pointer~0.base) 0) 4294967296) 2147483647)) (.cse2 (= |~#var_1_14~0.offset| 0)) (.cse3 (= |~#var_1_14~0.base| ~var_1_14_Pointer~0.base)) (.cse4 (= |~#var_1_4~0.base| ~var_1_4_Pointer~0.base)) (.cse5 (= (select (select |#memory_int#10| ~var_1_12_Pointer~0.base) ~var_1_12_Pointer~0.offset) .cse1)) (.cse6 (= |~#var_1_4~0.offset| 0)) (.cse7 (= ~var_1_14_Pointer~0.offset 0)) (.cse8 (<= 1 (mod .cse9 256))) (.cse11 (select (select |#memory_int#8| ~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset)) (.cse12 (select (select |#memory_int#13| ~var_1_15_Pointer~0.base) ~var_1_15_Pointer~0.offset)) (.cse10 (= ~var_1_4_Pointer~0.offset 0))) (or (and .cse0 (= (select (select |#memory_int#4| ~var_1_5_Pointer~0.base) ~var_1_5_Pointer~0.offset) .cse1) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (= .cse9 (select (select |#memory_int#12| ~var_1_14_Pointer~0.base) 0)) .cse10 (= .cse11 .cse12) (= (select (select |#memory_int#6| ~var_1_7_Pointer~0.base) ~var_1_7_Pointer~0.offset) (select (select |#memory_int#9| ~var_1_10_Pointer~0.base) ~var_1_10_Pointer~0.offset))) (and .cse0 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (<= (mod (+ 4294967295 .cse11) 4294967296) (mod (* .cse12 .cse1) 4294967296)) .cse10)))) [2023-12-21 02:18:36,663 INFO L899 garLoopResultBuilder]: For program point L88-1(line 88) no Hoare annotation was computed. [2023-12-21 02:18:36,663 INFO L899 garLoopResultBuilder]: For program point L55(lines 55 57) no Hoare annotation was computed. [2023-12-21 02:18:36,663 INFO L899 garLoopResultBuilder]: For program point L55-2(lines 55 57) no Hoare annotation was computed. [2023-12-21 02:18:36,663 INFO L895 garLoopResultBuilder]: At program point L97(line 97) the Hoare annotation is: (and (<= (mod (select (select |#memory_int#3| ~var_1_4_Pointer~0.base) 0) 4294967296) 2147483647) (= |~#var_1_14~0.offset| 0) (= |~#var_1_14~0.base| ~var_1_14_Pointer~0.base) (= |~#var_1_4~0.base| ~var_1_4_Pointer~0.base) (= |~#var_1_4~0.offset| 0) (= ~var_1_14_Pointer~0.offset 0) (<= 1 (mod (select (select |#memory_int#11| ~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset) 256)) (= ~var_1_4_Pointer~0.offset 0)) [2023-12-21 02:18:36,663 INFO L899 garLoopResultBuilder]: For program point L97-1(line 97) no Hoare annotation was computed. [2023-12-21 02:18:36,663 INFO L899 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2023-12-21 02:18:36,663 INFO L899 garLoopResultBuilder]: For program point L56-2(line 56) no Hoare annotation was computed. [2023-12-21 02:18:36,664 INFO L895 garLoopResultBuilder]: At program point L81(line 81) the Hoare annotation is: (let ((.cse9 (select (select |#memory_int#11| ~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset)) (.cse1 (select (select |#memory_int#7| ~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset))) (let ((.cse0 (<= (mod (select (select |#memory_int#3| ~var_1_4_Pointer~0.base) 0) 4294967296) 2147483647)) (.cse2 (= |~#var_1_14~0.offset| 0)) (.cse3 (= |~#var_1_14~0.base| ~var_1_14_Pointer~0.base)) (.cse4 (= |~#var_1_4~0.base| ~var_1_4_Pointer~0.base)) (.cse5 (= (select (select |#memory_int#10| ~var_1_12_Pointer~0.base) ~var_1_12_Pointer~0.offset) .cse1)) (.cse6 (= |~#var_1_4~0.offset| 0)) (.cse7 (= ~var_1_14_Pointer~0.offset 0)) (.cse8 (<= 1 (mod .cse9 256))) (.cse11 (select (select |#memory_int#8| ~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset)) (.cse12 (select (select |#memory_int#13| ~var_1_15_Pointer~0.base) ~var_1_15_Pointer~0.offset)) (.cse10 (= ~var_1_4_Pointer~0.offset 0))) (or (and .cse0 (= (select (select |#memory_int#4| ~var_1_5_Pointer~0.base) ~var_1_5_Pointer~0.offset) .cse1) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (= .cse9 (select (select |#memory_int#12| ~var_1_14_Pointer~0.base) 0)) .cse10 (= .cse11 .cse12) (= (select (select |#memory_int#6| ~var_1_7_Pointer~0.base) ~var_1_7_Pointer~0.offset) (select (select |#memory_int#9| ~var_1_10_Pointer~0.base) ~var_1_10_Pointer~0.offset))) (and .cse0 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (<= (mod (+ 4294967295 .cse11) 4294967296) (mod (* .cse12 .cse1) 4294967296)) .cse10)))) [2023-12-21 02:18:36,664 INFO L899 garLoopResultBuilder]: For program point L81-1(line 81) no Hoare annotation was computed. [2023-12-21 02:18:36,664 INFO L899 garLoopResultBuilder]: For program point L106(line 106) no Hoare annotation was computed. [2023-12-21 02:18:36,664 INFO L899 garLoopResultBuilder]: For program point L106-1(line 106) no Hoare annotation was computed. [2023-12-21 02:18:36,664 INFO L899 garLoopResultBuilder]: For program point L106-3(line 106) no Hoare annotation was computed. [2023-12-21 02:18:36,664 INFO L899 garLoopResultBuilder]: For program point L106-5(line 106) no Hoare annotation was computed. [2023-12-21 02:18:36,664 INFO L899 garLoopResultBuilder]: For program point L106-6(line 106) no Hoare annotation was computed. [2023-12-21 02:18:36,664 INFO L899 garLoopResultBuilder]: For program point L106-7(line 106) no Hoare annotation was computed. [2023-12-21 02:18:36,664 INFO L899 garLoopResultBuilder]: For program point L106-8(line 106) no Hoare annotation was computed. [2023-12-21 02:18:36,664 INFO L899 garLoopResultBuilder]: For program point L106-9(line 106) no Hoare annotation was computed. [2023-12-21 02:18:36,664 INFO L899 garLoopResultBuilder]: For program point L106-11(line 106) no Hoare annotation was computed. [2023-12-21 02:18:36,664 INFO L899 garLoopResultBuilder]: For program point L106-12(line 106) no Hoare annotation was computed. [2023-12-21 02:18:36,664 INFO L899 garLoopResultBuilder]: For program point L106-14(line 106) no Hoare annotation was computed. [2023-12-21 02:18:36,664 INFO L895 garLoopResultBuilder]: At program point L90(line 90) the Hoare annotation is: (let ((.cse9 (select (select |#memory_int#11| ~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset)) (.cse1 (select (select |#memory_int#7| ~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset))) (let ((.cse0 (<= (mod (select (select |#memory_int#3| ~var_1_4_Pointer~0.base) 0) 4294967296) 2147483647)) (.cse2 (= |~#var_1_14~0.offset| 0)) (.cse3 (= |~#var_1_14~0.base| ~var_1_14_Pointer~0.base)) (.cse4 (= |~#var_1_4~0.base| ~var_1_4_Pointer~0.base)) (.cse5 (= (select (select |#memory_int#10| ~var_1_12_Pointer~0.base) ~var_1_12_Pointer~0.offset) .cse1)) (.cse6 (= |~#var_1_4~0.offset| 0)) (.cse7 (= ~var_1_14_Pointer~0.offset 0)) (.cse8 (<= 1 (mod .cse9 256))) (.cse11 (select (select |#memory_int#8| ~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset)) (.cse12 (select (select |#memory_int#13| ~var_1_15_Pointer~0.base) ~var_1_15_Pointer~0.offset)) (.cse10 (= ~var_1_4_Pointer~0.offset 0))) (or (and .cse0 (= (select (select |#memory_int#4| ~var_1_5_Pointer~0.base) ~var_1_5_Pointer~0.offset) .cse1) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (= .cse9 (select (select |#memory_int#12| ~var_1_14_Pointer~0.base) 0)) .cse10 (= .cse11 .cse12)) (and .cse0 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (<= (mod (+ 4294967295 .cse11) 4294967296) (mod (* .cse12 .cse1) 4294967296)) .cse10)))) [2023-12-21 02:18:36,664 INFO L899 garLoopResultBuilder]: For program point L106-16(line 106) no Hoare annotation was computed. [2023-12-21 02:18:36,664 INFO L899 garLoopResultBuilder]: For program point L90-1(line 90) no Hoare annotation was computed. [2023-12-21 02:18:36,664 INFO L899 garLoopResultBuilder]: For program point L106-18(line 106) no Hoare annotation was computed. [2023-12-21 02:18:36,664 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-12-21 02:18:36,664 INFO L899 garLoopResultBuilder]: For program point L106-20(line 106) no Hoare annotation was computed. [2023-12-21 02:18:36,664 INFO L899 garLoopResultBuilder]: For program point L106-21(line 106) no Hoare annotation was computed. [2023-12-21 02:18:36,665 INFO L899 garLoopResultBuilder]: For program point L106-22(line 106) no Hoare annotation was computed. [2023-12-21 02:18:36,665 INFO L899 garLoopResultBuilder]: For program point L106-23(line 106) no Hoare annotation was computed. [2023-12-21 02:18:36,665 INFO L895 garLoopResultBuilder]: At program point L82(line 82) the Hoare annotation is: (let ((.cse9 (select (select |#memory_int#11| ~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset)) (.cse1 (select (select |#memory_int#7| ~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset))) (let ((.cse0 (<= (mod (select (select |#memory_int#3| ~var_1_4_Pointer~0.base) 0) 4294967296) 2147483647)) (.cse2 (= |~#var_1_14~0.offset| 0)) (.cse3 (= |~#var_1_14~0.base| ~var_1_14_Pointer~0.base)) (.cse4 (= |~#var_1_4~0.base| ~var_1_4_Pointer~0.base)) (.cse5 (= (select (select |#memory_int#10| ~var_1_12_Pointer~0.base) ~var_1_12_Pointer~0.offset) .cse1)) (.cse6 (= |~#var_1_4~0.offset| 0)) (.cse7 (= ~var_1_14_Pointer~0.offset 0)) (.cse8 (<= 1 (mod .cse9 256))) (.cse11 (select (select |#memory_int#8| ~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset)) (.cse12 (select (select |#memory_int#13| ~var_1_15_Pointer~0.base) ~var_1_15_Pointer~0.offset)) (.cse10 (= ~var_1_4_Pointer~0.offset 0))) (or (and .cse0 (= (select (select |#memory_int#4| ~var_1_5_Pointer~0.base) ~var_1_5_Pointer~0.offset) .cse1) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (= .cse9 (select (select |#memory_int#12| ~var_1_14_Pointer~0.base) 0)) .cse10 (= .cse11 .cse12) (= (select (select |#memory_int#6| ~var_1_7_Pointer~0.base) ~var_1_7_Pointer~0.offset) (select (select |#memory_int#9| ~var_1_10_Pointer~0.base) ~var_1_10_Pointer~0.offset))) (and .cse0 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (<= (mod (+ 4294967295 .cse11) 4294967296) (mod (* .cse12 .cse1) 4294967296)) .cse10)))) [2023-12-21 02:18:36,665 INFO L899 garLoopResultBuilder]: For program point L82-1(line 82) no Hoare annotation was computed. [2023-12-21 02:18:36,665 INFO L899 garLoopResultBuilder]: For program point L106-25(line 106) no Hoare annotation was computed. [2023-12-21 02:18:36,665 INFO L899 garLoopResultBuilder]: For program point L106-27(line 106) no Hoare annotation was computed. [2023-12-21 02:18:36,665 INFO L899 garLoopResultBuilder]: For program point L106-29(line 106) no Hoare annotation was computed. [2023-12-21 02:18:36,665 INFO L899 garLoopResultBuilder]: For program point L106-30(line 106) no Hoare annotation was computed. [2023-12-21 02:18:36,665 INFO L899 garLoopResultBuilder]: For program point L106-32(line 106) no Hoare annotation was computed. [2023-12-21 02:18:36,665 INFO L899 garLoopResultBuilder]: For program point L106-33(line 106) no Hoare annotation was computed. [2023-12-21 02:18:36,665 INFO L899 garLoopResultBuilder]: For program point L106-35(line 106) no Hoare annotation was computed. [2023-12-21 02:18:36,665 INFO L899 garLoopResultBuilder]: For program point L106-36(line 106) no Hoare annotation was computed. [2023-12-21 02:18:36,665 INFO L899 garLoopResultBuilder]: For program point L106-38(line 106) no Hoare annotation was computed. [2023-12-21 02:18:36,665 INFO L895 garLoopResultBuilder]: At program point L99(line 99) the Hoare annotation is: (and (<= (mod (select (select |#memory_int#3| ~var_1_4_Pointer~0.base) 0) 4294967296) 2147483647) (= |~#var_1_14~0.offset| 0) (= |~#var_1_14~0.base| ~var_1_14_Pointer~0.base) (= |~#var_1_4~0.base| ~var_1_4_Pointer~0.base) (= |~#var_1_4~0.offset| 0) (= ~var_1_14_Pointer~0.offset 0) (= |ULTIMATE.start_updateVariables_#t~mem57#1| (select (select |#memory_int#12| |~#var_1_14~0.base|) 0)) (<= 1 (mod (select (select |#memory_int#11| ~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset) 256)) (= ~var_1_4_Pointer~0.offset 0)) [2023-12-21 02:18:36,665 INFO L899 garLoopResultBuilder]: For program point L99-1(line 99) no Hoare annotation was computed. [2023-12-21 02:18:36,665 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-21 02:18:36,665 INFO L895 garLoopResultBuilder]: At program point L91(line 91) the Hoare annotation is: (let ((.cse9 (select (select |#memory_int#11| ~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset)) (.cse1 (select (select |#memory_int#7| ~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset))) (let ((.cse0 (<= (mod (select (select |#memory_int#3| ~var_1_4_Pointer~0.base) 0) 4294967296) 2147483647)) (.cse2 (= |~#var_1_14~0.offset| 0)) (.cse3 (= |~#var_1_14~0.base| ~var_1_14_Pointer~0.base)) (.cse4 (= |~#var_1_4~0.base| ~var_1_4_Pointer~0.base)) (.cse5 (= (select (select |#memory_int#10| ~var_1_12_Pointer~0.base) ~var_1_12_Pointer~0.offset) .cse1)) (.cse6 (= |~#var_1_4~0.offset| 0)) (.cse7 (= ~var_1_14_Pointer~0.offset 0)) (.cse8 (<= 1 (mod .cse9 256))) (.cse11 (select (select |#memory_int#8| ~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset)) (.cse12 (select (select |#memory_int#13| ~var_1_15_Pointer~0.base) ~var_1_15_Pointer~0.offset)) (.cse10 (= ~var_1_4_Pointer~0.offset 0))) (or (and .cse0 (= (select (select |#memory_int#4| ~var_1_5_Pointer~0.base) ~var_1_5_Pointer~0.offset) .cse1) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (= .cse9 (select (select |#memory_int#12| ~var_1_14_Pointer~0.base) 0)) .cse10 (= .cse11 .cse12)) (and .cse0 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (<= (mod (+ 4294967295 .cse11) 4294967296) (mod (* .cse12 .cse1) 4294967296)) .cse10)))) [2023-12-21 02:18:36,665 INFO L899 garLoopResultBuilder]: For program point L91-1(line 91) no Hoare annotation was computed. [2023-12-21 02:18:36,666 INFO L895 garLoopResultBuilder]: At program point L100(line 100) the Hoare annotation is: (and (<= (mod (select (select |#memory_int#3| ~var_1_4_Pointer~0.base) 0) 4294967296) 2147483647) (= |~#var_1_14~0.offset| 0) (= |~#var_1_14~0.base| ~var_1_14_Pointer~0.base) (= |~#var_1_4~0.base| ~var_1_4_Pointer~0.base) (= |~#var_1_4~0.offset| 0) (= ~var_1_14_Pointer~0.offset 0) (<= 1 (mod (select (select |#memory_int#12| |~#var_1_14~0.base|) 0) 256)) (<= 1 (mod (select (select |#memory_int#11| ~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset) 256)) (= ~var_1_4_Pointer~0.offset 0)) [2023-12-21 02:18:36,666 INFO L899 garLoopResultBuilder]: For program point L100-1(line 100) no Hoare annotation was computed. [2023-12-21 02:18:36,666 INFO L895 garLoopResultBuilder]: At program point L84(line 84) the Hoare annotation is: (let ((.cse11 (select (select |#memory_int#11| ~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset)) (.cse9 (select (select |#memory_int#7| ~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset))) (let ((.cse0 (= |~#var_1_14~0.offset| 0)) (.cse1 (= |~#var_1_14~0.base| ~var_1_14_Pointer~0.base)) (.cse2 (= |~#var_1_4~0.base| ~var_1_4_Pointer~0.base)) (.cse3 (= (select (select |#memory_int#10| ~var_1_12_Pointer~0.base) ~var_1_12_Pointer~0.offset) .cse9)) (.cse4 (= |~#var_1_4~0.offset| 0)) (.cse5 (= ~var_1_14_Pointer~0.offset 0)) (.cse6 (<= 1 (mod .cse11 256))) (.cse10 (= ~var_1_4_Pointer~0.offset 0)) (.cse7 (select (select |#memory_int#8| ~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset)) (.cse8 (select (select |#memory_int#13| ~var_1_15_Pointer~0.base) ~var_1_15_Pointer~0.offset))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (<= (mod (+ 4294967295 .cse7) 4294967296) (mod (* .cse8 .cse9) 4294967296)) .cse10) (and (= (select (select |#memory_int#4| ~var_1_5_Pointer~0.base) ~var_1_5_Pointer~0.offset) .cse9) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (= .cse11 (select (select |#memory_int#12| ~var_1_14_Pointer~0.base) 0)) .cse10 (= .cse7 .cse8) (= (select (select |#memory_int#6| ~var_1_7_Pointer~0.base) ~var_1_7_Pointer~0.offset) (select (select |#memory_int#9| ~var_1_10_Pointer~0.base) ~var_1_10_Pointer~0.offset)))))) [2023-12-21 02:18:36,666 INFO L899 garLoopResultBuilder]: For program point L84-1(line 84) no Hoare annotation was computed. [2023-12-21 02:18:36,666 INFO L899 garLoopResultBuilder]: For program point L51(lines 51 78) no Hoare annotation was computed. [2023-12-21 02:18:36,668 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:18:36,669 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-21 02:18:36,686 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated [2023-12-21 02:18:36,691 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~var_1_5_Pointer~0!base][~var_1_5_Pointer~0!offset] could not be translated [2023-12-21 02:18:36,691 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated [2023-12-21 02:18:36,692 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~var_1_3_Pointer~0!base][~var_1_3_Pointer~0!offset] could not be translated [2023-12-21 02:18:36,692 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated [2023-12-21 02:18:36,692 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~var_1_1_Pointer~0!base][~var_1_1_Pointer~0!offset] could not be translated [2023-12-21 02:18:36,692 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#10[~var_1_12_Pointer~0!base][~var_1_12_Pointer~0!offset] could not be translated [2023-12-21 02:18:36,692 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated [2023-12-21 02:18:36,693 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_13_Pointer~0!base][~var_1_13_Pointer~0!offset] could not be translated [2023-12-21 02:18:36,693 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_13_Pointer~0!base][~var_1_13_Pointer~0!offset] could not be translated [2023-12-21 02:18:36,693 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#12[~var_1_14_Pointer~0!base][0] could not be translated [2023-12-21 02:18:36,693 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#8[~var_1_9_Pointer~0!base][~var_1_9_Pointer~0!offset] could not be translated [2023-12-21 02:18:36,693 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#13[~var_1_15_Pointer~0!base][~var_1_15_Pointer~0!offset] could not be translated [2023-12-21 02:18:36,693 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#6[~var_1_7_Pointer~0!base][~var_1_7_Pointer~0!offset] could not be translated [2023-12-21 02:18:36,693 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#9[~var_1_10_Pointer~0!base][~var_1_10_Pointer~0!offset] could not be translated [2023-12-21 02:18:36,693 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated [2023-12-21 02:18:36,693 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated [2023-12-21 02:18:36,694 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~var_1_3_Pointer~0!base][~var_1_3_Pointer~0!offset] could not be translated [2023-12-21 02:18:36,694 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#10[~var_1_12_Pointer~0!base][~var_1_12_Pointer~0!offset] could not be translated [2023-12-21 02:18:36,694 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated [2023-12-21 02:18:36,694 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_13_Pointer~0!base][~var_1_13_Pointer~0!offset] could not be translated [2023-12-21 02:18:36,694 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#8[~var_1_9_Pointer~0!base][~var_1_9_Pointer~0!offset] could not be translated [2023-12-21 02:18:36,694 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#13[~var_1_15_Pointer~0!base][~var_1_15_Pointer~0!offset] could not be translated [2023-12-21 02:18:36,695 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated [2023-12-21 02:18:36,695 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated [2023-12-21 02:18:36,695 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~var_1_5_Pointer~0!base][~var_1_5_Pointer~0!offset] could not be translated [2023-12-21 02:18:36,695 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated [2023-12-21 02:18:36,695 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~var_1_3_Pointer~0!base][~var_1_3_Pointer~0!offset] could not be translated [2023-12-21 02:18:36,695 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated [2023-12-21 02:18:36,695 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~var_1_1_Pointer~0!base][~var_1_1_Pointer~0!offset] could not be translated [2023-12-21 02:18:36,695 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#10[~var_1_12_Pointer~0!base][~var_1_12_Pointer~0!offset] could not be translated [2023-12-21 02:18:36,695 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated [2023-12-21 02:18:36,696 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_13_Pointer~0!base][~var_1_13_Pointer~0!offset] could not be translated [2023-12-21 02:18:36,696 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_13_Pointer~0!base][~var_1_13_Pointer~0!offset] could not be translated [2023-12-21 02:18:36,696 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#12[~var_1_14_Pointer~0!base][0] could not be translated [2023-12-21 02:18:36,696 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#8[~var_1_9_Pointer~0!base][~var_1_9_Pointer~0!offset] could not be translated [2023-12-21 02:18:36,696 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#13[~var_1_15_Pointer~0!base][~var_1_15_Pointer~0!offset] could not be translated [2023-12-21 02:18:36,696 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated [2023-12-21 02:18:36,696 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#8[~var_1_9_Pointer~0!base][~var_1_9_Pointer~0!offset] could not be translated [2023-12-21 02:18:36,696 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#13[~var_1_15_Pointer~0!base][~var_1_15_Pointer~0!offset] could not be translated [2023-12-21 02:18:36,696 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#8[~var_1_9_Pointer~0!base][~var_1_9_Pointer~0!offset] could not be translated [2023-12-21 02:18:36,696 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#9[~var_1_10_Pointer~0!base][~var_1_10_Pointer~0!offset] could not be translated [2023-12-21 02:18:36,696 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated [2023-12-21 02:18:36,697 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 02:18:36 BoogieIcfgContainer [2023-12-21 02:18:36,697 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-21 02:18:36,697 INFO L158 Benchmark]: Toolchain (without parser) took 18938.87ms. Allocated memory was 289.4MB in the beginning and 453.0MB in the end (delta: 163.6MB). Free memory was 237.6MB in the beginning and 403.5MB in the end (delta: -165.9MB). Peak memory consumption was 251.4MB. Max. memory is 8.0GB. [2023-12-21 02:18:36,698 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 186.6MB. Free memory is still 132.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 02:18:36,698 INFO L158 Benchmark]: CACSL2BoogieTranslator took 212.89ms. Allocated memory is still 289.4MB. Free memory was 237.6MB in the beginning and 223.4MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-12-21 02:18:36,698 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.77ms. Allocated memory is still 289.4MB. Free memory was 223.4MB in the beginning and 220.3MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-21 02:18:36,699 INFO L158 Benchmark]: Boogie Preprocessor took 75.04ms. Allocated memory is still 289.4MB. Free memory was 220.3MB in the beginning and 216.6MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-21 02:18:36,699 INFO L158 Benchmark]: RCFGBuilder took 574.73ms. Allocated memory is still 289.4MB. Free memory was 216.6MB in the beginning and 250.4MB in the end (delta: -33.8MB). Peak memory consumption was 40.1MB. Max. memory is 8.0GB. [2023-12-21 02:18:36,699 INFO L158 Benchmark]: TraceAbstraction took 18013.03ms. Allocated memory was 289.4MB in the beginning and 453.0MB in the end (delta: 163.6MB). Free memory was 249.4MB in the beginning and 403.5MB in the end (delta: -154.1MB). Peak memory consumption was 262.7MB. Max. memory is 8.0GB. [2023-12-21 02:18:36,700 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 186.6MB. Free memory is still 132.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 212.89ms. Allocated memory is still 289.4MB. Free memory was 237.6MB in the beginning and 223.4MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 56.77ms. Allocated memory is still 289.4MB. Free memory was 223.4MB in the beginning and 220.3MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 75.04ms. Allocated memory is still 289.4MB. Free memory was 220.3MB in the beginning and 216.6MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 574.73ms. Allocated memory is still 289.4MB. Free memory was 216.6MB in the beginning and 250.4MB in the end (delta: -33.8MB). Peak memory consumption was 40.1MB. Max. memory is 8.0GB. * TraceAbstraction took 18013.03ms. Allocated memory was 289.4MB in the beginning and 453.0MB in the end (delta: 163.6MB). Free memory was 249.4MB in the beginning and 403.5MB in the end (delta: -154.1MB). Peak memory consumption was 262.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~var_1_5_Pointer~0!base][~var_1_5_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~var_1_3_Pointer~0!base][~var_1_3_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~var_1_1_Pointer~0!base][~var_1_1_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#10[~var_1_12_Pointer~0!base][~var_1_12_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_13_Pointer~0!base][~var_1_13_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_13_Pointer~0!base][~var_1_13_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#12[~var_1_14_Pointer~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#8[~var_1_9_Pointer~0!base][~var_1_9_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#13[~var_1_15_Pointer~0!base][~var_1_15_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#6[~var_1_7_Pointer~0!base][~var_1_7_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#9[~var_1_10_Pointer~0!base][~var_1_10_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~var_1_3_Pointer~0!base][~var_1_3_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#10[~var_1_12_Pointer~0!base][~var_1_12_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_13_Pointer~0!base][~var_1_13_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#8[~var_1_9_Pointer~0!base][~var_1_9_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#13[~var_1_15_Pointer~0!base][~var_1_15_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~var_1_5_Pointer~0!base][~var_1_5_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~var_1_3_Pointer~0!base][~var_1_3_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~var_1_1_Pointer~0!base][~var_1_1_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#10[~var_1_12_Pointer~0!base][~var_1_12_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_13_Pointer~0!base][~var_1_13_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_13_Pointer~0!base][~var_1_13_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#12[~var_1_14_Pointer~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#8[~var_1_9_Pointer~0!base][~var_1_9_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#13[~var_1_15_Pointer~0!base][~var_1_15_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#8[~var_1_9_Pointer~0!base][~var_1_9_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#13[~var_1_15_Pointer~0!base][~var_1_15_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#8[~var_1_9_Pointer~0!base][~var_1_9_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#9[~var_1_10_Pointer~0!base][~var_1_10_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 17.9s, OverallIterations: 21, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1745 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1745 mSDsluCounter, 8090 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5918 mSDsCounter, 192 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1899 IncrementalHoareTripleChecker+Invalid, 2091 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 192 mSolverCounterUnsat, 2172 mSDtfsCounter, 1899 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2953 GetRequests, 2777 SyntacticMatches, 2 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=200occurred in iteration=18, InterpolantAutomatonStates: 144, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 21 MinimizatonAttempts, 360 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 16 LocationsWithAnnotation, 409 PreInvPairs, 446 NumberOfFragments, 1857 HoareAnnotationTreeSize, 409 FormulaSimplifications, 4858 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 16 FormulaSimplificationsInter, 9450 FormulaSimplificationTreeSizeReductionInter, 1.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.8s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 2453 NumberOfCodeBlocks, 2453 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 2884 ConstructedInterpolants, 88 QuantifiedInterpolants, 10223 SizeOfPredicates, 169 NumberOfNonLiveVariables, 10502 ConjunctsInSsa, 275 ConjunctsInUnsatCore, 26 InterpolantComputations, 18 PerfectInterpolantSequences, 8959/9464 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 112]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2023-12-21 02:18:36,740 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...