/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 true -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 [2023-12-19 15:41:59,124 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 15:41:59,188 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 15:41:59,191 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 15:41:59,192 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 15:41:59,217 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 15:41:59,218 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 15:41:59,218 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 15:41:59,219 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 15:41:59,221 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 15:41:59,222 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 15:41:59,222 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 15:41:59,222 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 15:41:59,223 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 15:41:59,223 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 15:41:59,223 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 15:41:59,223 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 15:41:59,224 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 15:41:59,224 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 15:41:59,225 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 15:41:59,225 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 15:41:59,225 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 15:41:59,225 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 15:41:59,225 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 15:41:59,226 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 15:41:59,226 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 15:41:59,226 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 15:41:59,226 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 15:41:59,226 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 15:41:59,227 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 15:41:59,227 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 15:41:59,227 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 15:41:59,227 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 15:41:59,228 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 15:41:59,228 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 15:41:59,228 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 15:41:59,228 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 15:41:59,228 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 15:41:59,228 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 15:41:59,228 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 15:41:59,228 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 15:41:59,229 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 15:41:59,229 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 15:41:59,229 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 15:41:59,427 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 15:41:59,444 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 15:41:59,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 15:41:59,446 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 15:41:59,447 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 15:41:59,447 INFO L431 ainManager$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 [2023-12-19 15:42:00,432 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 15:42:00,613 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 15:42:00,614 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-87.i [2023-12-19 15:42:00,621 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5ee55291/bcd1dc4377894484b9059e4cc06e458f/FLAGbad0804f5 [2023-12-19 15:42:00,636 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5ee55291/bcd1dc4377894484b9059e4cc06e458f [2023-12-19 15:42:00,638 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 15:42:00,639 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 15:42:00,641 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 15:42:00,641 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 15:42:00,644 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 15:42:00,645 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 03:42:00" (1/1) ... [2023-12-19 15:42:00,646 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46a35d09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:42:00, skipping insertion in model container [2023-12-19 15:42:00,646 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 03:42:00" (1/1) ... [2023-12-19 15:42:00,674 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 15:42:00,775 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] [2023-12-19 15:42:00,801 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 15:42:00,810 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 15:42:00,818 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] [2023-12-19 15:42:00,834 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 15:42:00,850 INFO L206 MainTranslator]: Completed translation [2023-12-19 15:42:00,851 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:42:00 WrapperNode [2023-12-19 15:42:00,851 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 15:42:00,852 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 15:42:00,852 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 15:42:00,852 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 15:42:00,856 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:42:00" (1/1) ... [2023-12-19 15:42:00,863 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:42:00" (1/1) ... [2023-12-19 15:42:00,890 INFO L138 Inliner]: procedures = 26, calls = 157, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 444 [2023-12-19 15:42:00,891 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 15:42:00,891 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 15:42:00,891 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 15:42:00,891 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 15:42:00,904 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:42:00" (1/1) ... [2023-12-19 15:42:00,904 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:42:00" (1/1) ... [2023-12-19 15:42:00,911 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:42:00" (1/1) ... [2023-12-19 15:42:00,935 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]. [2023-12-19 15:42:00,936 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:42:00" (1/1) ... [2023-12-19 15:42:00,936 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:42:00" (1/1) ... [2023-12-19 15:42:00,948 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:42:00" (1/1) ... [2023-12-19 15:42:00,951 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:42:00" (1/1) ... [2023-12-19 15:42:00,953 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:42:00" (1/1) ... [2023-12-19 15:42:00,954 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:42:00" (1/1) ... [2023-12-19 15:42:00,957 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 15:42:00,958 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 15:42:00,958 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 15:42:00,958 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 15:42:00,958 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:42:00" (1/1) ... [2023-12-19 15:42:00,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 15:42:00,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:42:00,978 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) [2023-12-19 15:42:01,001 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 [2023-12-19 15:42:01,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 15:42:01,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-19 15:42:01,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-19 15:42:01,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-12-19 15:42:01,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-12-19 15:42:01,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-12-19 15:42:01,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-12-19 15:42:01,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-12-19 15:42:01,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-12-19 15:42:01,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-12-19 15:42:01,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-12-19 15:42:01,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-12-19 15:42:01,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-12-19 15:42:01,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-12-19 15:42:01,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-12-19 15:42:01,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-19 15:42:01,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-19 15:42:01,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-12-19 15:42:01,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-12-19 15:42:01,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-12-19 15:42:01,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-12-19 15:42:01,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-12-19 15:42:01,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-12-19 15:42:01,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-12-19 15:42:01,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-12-19 15:42:01,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-12-19 15:42:01,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-12-19 15:42:01,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-12-19 15:42:01,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-12-19 15:42:01,018 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-19 15:42:01,018 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-19 15:42:01,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 15:42:01,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-19 15:42:01,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-19 15:42:01,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-19 15:42:01,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-19 15:42:01,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-19 15:42:01,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-19 15:42:01,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-19 15:42:01,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-19 15:42:01,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-19 15:42:01,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-19 15:42:01,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-19 15:42:01,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-12-19 15:42:01,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-12-19 15:42:01,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 15:42:01,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 15:42:01,152 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 15:42:01,154 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 15:42:01,459 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 15:42:01,501 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 15:42:01,501 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 15:42:01,502 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:42:01 BoogieIcfgContainer [2023-12-19 15:42:01,502 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 15:42:01,503 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 15:42:01,503 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 15:42:01,505 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 15:42:01,505 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 03:42:00" (1/3) ... [2023-12-19 15:42:01,506 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@184436bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 03:42:01, skipping insertion in model container [2023-12-19 15:42:01,506 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:42:00" (2/3) ... [2023-12-19 15:42:01,506 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@184436bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 03:42:01, skipping insertion in model container [2023-12-19 15:42:01,506 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:42:01" (3/3) ... [2023-12-19 15:42:01,507 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-87.i [2023-12-19 15:42:01,518 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 15:42:01,518 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 15:42:01,549 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 15:42:01,553 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;@46c208c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 15:42:01,553 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 15:42:01,556 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) [2023-12-19 15:42:01,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-19 15:42:01,572 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:01,572 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] [2023-12-19 15:42:01,573 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:01,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:01,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1495594445, now seen corresponding path program 1 times [2023-12-19 15:42:01,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:01,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549858949] [2023-12-19 15:42:01,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:01,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:01,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:01,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:01,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549858949] [2023-12-19 15:42:01,724 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-19 15:42:01,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [982508329] [2023-12-19 15:42:01,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:01,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:42:01,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:42:01,730 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) [2023-12-19 15:42:01,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 15:42:01,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:01,931 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-19 15:42:01,940 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:42:01,972 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2023-12-19 15:42:01,972 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:42:01,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [982508329] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:01,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:01,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 15:42:01,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081726096] [2023-12-19 15:42:01,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:02,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 15:42:02,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:02,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 15:42:02,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 15:42:02,035 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) [2023-12-19 15:42:02,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:02,080 INFO L93 Difference]: Finished difference Result 157 states and 246 transitions. [2023-12-19 15:42:02,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 15:42:02,083 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 [2023-12-19 15:42:02,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:02,089 INFO L225 Difference]: With dead ends: 157 [2023-12-19 15:42:02,089 INFO L226 Difference]: Without dead ends: 78 [2023-12-19 15:42:02,092 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 [2023-12-19 15:42:02,094 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 [2023-12-19 15:42:02,095 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] [2023-12-19 15:42:02,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-12-19 15:42:02,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2023-12-19 15:42:02,127 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) [2023-12-19 15:42:02,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 110 transitions. [2023-12-19 15:42:02,132 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 110 transitions. Word has length 106 [2023-12-19 15:42:02,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:02,133 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 110 transitions. [2023-12-19 15:42:02,133 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) [2023-12-19 15:42:02,133 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 110 transitions. [2023-12-19 15:42:02,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-19 15:42:02,140 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:02,140 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] [2023-12-19 15:42:02,148 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-19 15:42:02,346 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 [2023-12-19 15:42:02,346 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:02,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:02,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1477731561, now seen corresponding path program 1 times [2023-12-19 15:42:02,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:02,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744583377] [2023-12-19 15:42:02,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:02,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:02,395 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:42:02,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [53147057] [2023-12-19 15:42:02,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:02,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:42:02,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:42:02,400 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) [2023-12-19 15:42:02,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 15:42:02,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:02,570 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 15:42:02,577 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:42:02,619 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:02,619 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:42:02,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:02,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744583377] [2023-12-19 15:42:02,620 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:42:02,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53147057] [2023-12-19 15:42:02,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [53147057] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:02,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:02,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 15:42:02,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008117489] [2023-12-19 15:42:02,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:02,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 15:42:02,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:02,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 15:42:02,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 15:42:02,625 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) [2023-12-19 15:42:02,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:02,679 INFO L93 Difference]: Finished difference Result 167 states and 236 transitions. [2023-12-19 15:42:02,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 15:42:02,683 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 [2023-12-19 15:42:02,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:02,684 INFO L225 Difference]: With dead ends: 167 [2023-12-19 15:42:02,684 INFO L226 Difference]: Without dead ends: 90 [2023-12-19 15:42:02,684 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 [2023-12-19 15:42:02,685 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 [2023-12-19 15:42:02,685 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] [2023-12-19 15:42:02,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-12-19 15:42:02,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 80. [2023-12-19 15:42:02,691 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) [2023-12-19 15:42:02,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 112 transitions. [2023-12-19 15:42:02,692 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 112 transitions. Word has length 106 [2023-12-19 15:42:02,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:02,693 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 112 transitions. [2023-12-19 15:42:02,693 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) [2023-12-19 15:42:02,693 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 112 transitions. [2023-12-19 15:42:02,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-19 15:42:02,695 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:02,695 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] [2023-12-19 15:42:02,701 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-19 15:42:02,900 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 [2023-12-19 15:42:02,901 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:02,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:02,901 INFO L85 PathProgramCache]: Analyzing trace with hash 2007889109, now seen corresponding path program 1 times [2023-12-19 15:42:02,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:02,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996980552] [2023-12-19 15:42:02,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:02,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:02,948 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:42:02,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1797339812] [2023-12-19 15:42:02,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:02,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:42:02,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:42:02,950 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) [2023-12-19 15:42:02,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-19 15:42:03,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:03,106 INFO L262 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 15:42:03,110 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:42:03,124 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:03,124 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:42:03,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:03,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996980552] [2023-12-19 15:42:03,124 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:42:03,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1797339812] [2023-12-19 15:42:03,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1797339812] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:03,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:03,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 15:42:03,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852134982] [2023-12-19 15:42:03,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:03,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 15:42:03,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:03,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 15:42:03,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 15:42:03,126 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) [2023-12-19 15:42:03,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:03,165 INFO L93 Difference]: Finished difference Result 167 states and 234 transitions. [2023-12-19 15:42:03,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 15:42:03,166 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 [2023-12-19 15:42:03,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:03,167 INFO L225 Difference]: With dead ends: 167 [2023-12-19 15:42:03,167 INFO L226 Difference]: Without dead ends: 88 [2023-12-19 15:42:03,168 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 [2023-12-19 15:42:03,168 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 [2023-12-19 15:42:03,171 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] [2023-12-19 15:42:03,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2023-12-19 15:42:03,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 82. [2023-12-19 15:42:03,176 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) [2023-12-19 15:42:03,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 114 transitions. [2023-12-19 15:42:03,177 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 114 transitions. Word has length 106 [2023-12-19 15:42:03,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:03,177 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 114 transitions. [2023-12-19 15:42:03,177 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) [2023-12-19 15:42:03,178 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 114 transitions. [2023-12-19 15:42:03,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-19 15:42:03,178 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:03,178 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] [2023-12-19 15:42:03,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-19 15:42:03,387 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 [2023-12-19 15:42:03,389 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:03,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:03,390 INFO L85 PathProgramCache]: Analyzing trace with hash 2065147411, now seen corresponding path program 1 times [2023-12-19 15:42:03,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:03,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986497958] [2023-12-19 15:42:03,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:03,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:03,413 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:42:03,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1253380461] [2023-12-19 15:42:03,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:03,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:42:03,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:42:03,415 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) [2023-12-19 15:42:03,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-19 15:42:03,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:03,564 INFO L262 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 15:42:03,566 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:42:03,605 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:03,605 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:42:03,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:03,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986497958] [2023-12-19 15:42:03,605 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:42:03,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1253380461] [2023-12-19 15:42:03,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1253380461] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:03,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:03,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 15:42:03,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650339145] [2023-12-19 15:42:03,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:03,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 15:42:03,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:03,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 15:42:03,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 15:42:03,607 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) [2023-12-19 15:42:03,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:03,629 INFO L93 Difference]: Finished difference Result 167 states and 232 transitions. [2023-12-19 15:42:03,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 15:42:03,629 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 [2023-12-19 15:42:03,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:03,630 INFO L225 Difference]: With dead ends: 167 [2023-12-19 15:42:03,630 INFO L226 Difference]: Without dead ends: 86 [2023-12-19 15:42:03,631 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 [2023-12-19 15:42:03,631 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 3 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:03,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 307 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:42:03,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-12-19 15:42:03,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 84. [2023-12-19 15:42:03,636 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) [2023-12-19 15:42:03,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 116 transitions. [2023-12-19 15:42:03,637 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 116 transitions. Word has length 106 [2023-12-19 15:42:03,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:03,637 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 116 transitions. [2023-12-19 15:42:03,637 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) [2023-12-19 15:42:03,637 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 116 transitions. [2023-12-19 15:42:03,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-19 15:42:03,638 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:03,638 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] [2023-12-19 15:42:03,654 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-19 15:42:03,843 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 [2023-12-19 15:42:03,844 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:03,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:03,844 INFO L85 PathProgramCache]: Analyzing trace with hash 2065206993, now seen corresponding path program 1 times [2023-12-19 15:42:03,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:03,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872084239] [2023-12-19 15:42:03,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:03,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:03,866 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:42:03,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [50685598] [2023-12-19 15:42:03,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:03,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:42:03,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:42:03,868 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) [2023-12-19 15:42:03,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-19 15:42:04,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:04,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 15:42:04,047 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:42:04,064 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:04,064 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:42:04,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:04,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872084239] [2023-12-19 15:42:04,065 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:42:04,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [50685598] [2023-12-19 15:42:04,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [50685598] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:04,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:04,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 15:42:04,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497174661] [2023-12-19 15:42:04,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:04,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 15:42:04,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:04,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 15:42:04,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 15:42:04,067 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) [2023-12-19 15:42:04,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:04,092 INFO L93 Difference]: Finished difference Result 196 states and 271 transitions. [2023-12-19 15:42:04,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 15:42:04,093 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 [2023-12-19 15:42:04,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:04,093 INFO L225 Difference]: With dead ends: 196 [2023-12-19 15:42:04,093 INFO L226 Difference]: Without dead ends: 113 [2023-12-19 15:42:04,094 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 [2023-12-19 15:42:04,094 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 [2023-12-19 15:42:04,095 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] [2023-12-19 15:42:04,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-12-19 15:42:04,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 86. [2023-12-19 15:42:04,099 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) [2023-12-19 15:42:04,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 118 transitions. [2023-12-19 15:42:04,099 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 118 transitions. Word has length 106 [2023-12-19 15:42:04,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:04,100 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 118 transitions. [2023-12-19 15:42:04,100 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) [2023-12-19 15:42:04,100 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 118 transitions. [2023-12-19 15:42:04,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-19 15:42:04,101 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:04,101 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] [2023-12-19 15:42:04,108 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-19 15:42:04,306 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 [2023-12-19 15:42:04,307 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:04,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:04,307 INFO L85 PathProgramCache]: Analyzing trace with hash 196401453, now seen corresponding path program 1 times [2023-12-19 15:42:04,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:04,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532314087] [2023-12-19 15:42:04,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:04,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:04,330 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:42:04,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1018834466] [2023-12-19 15:42:04,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:04,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:42:04,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:42:04,331 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) [2023-12-19 15:42:04,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-19 15:42:04,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:04,495 INFO L262 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-19 15:42:04,498 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:42:04,520 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 [2023-12-19 15:42:04,552 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:04,552 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:42:04,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:04,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532314087] [2023-12-19 15:42:04,552 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:42:04,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018834466] [2023-12-19 15:42:04,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1018834466] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:04,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:04,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 15:42:04,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789746975] [2023-12-19 15:42:04,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:04,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 15:42:04,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:04,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 15:42:04,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:42:04,554 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) [2023-12-19 15:42:04,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:04,642 INFO L93 Difference]: Finished difference Result 252 states and 343 transitions. [2023-12-19 15:42:04,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 15:42:04,643 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 [2023-12-19 15:42:04,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:04,644 INFO L225 Difference]: With dead ends: 252 [2023-12-19 15:42:04,644 INFO L226 Difference]: Without dead ends: 167 [2023-12-19 15:42:04,644 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 [2023-12-19 15:42:04,644 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 154 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 [2023-12-19 15:42:04,645 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] [2023-12-19 15:42:04,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2023-12-19 15:42:04,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 149. [2023-12-19 15:42:04,651 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) [2023-12-19 15:42:04,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 203 transitions. [2023-12-19 15:42:04,652 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 203 transitions. Word has length 108 [2023-12-19 15:42:04,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:04,652 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 203 transitions. [2023-12-19 15:42:04,652 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) [2023-12-19 15:42:04,653 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 203 transitions. [2023-12-19 15:42:04,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-19 15:42:04,653 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:04,653 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] [2023-12-19 15:42:04,662 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-19 15:42:04,859 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 [2023-12-19 15:42:04,860 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:04,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:04,860 INFO L85 PathProgramCache]: Analyzing trace with hash -538273384, now seen corresponding path program 1 times [2023-12-19 15:42:04,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:04,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850519760] [2023-12-19 15:42:04,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:04,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:04,889 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:42:04,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [865792971] [2023-12-19 15:42:04,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:04,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:42:04,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:42:04,890 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) [2023-12-19 15:42:04,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-19 15:42:05,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:05,040 INFO L262 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-19 15:42:05,050 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:42:05,069 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 [2023-12-19 15:42:05,078 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:05,078 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:42:05,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:05,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850519760] [2023-12-19 15:42:05,078 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:42:05,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [865792971] [2023-12-19 15:42:05,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [865792971] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:05,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:05,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:42:05,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530260339] [2023-12-19 15:42:05,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:05,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:42:05,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:05,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:42:05,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:42:05,079 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) [2023-12-19 15:42:05,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:05,161 INFO L93 Difference]: Finished difference Result 491 states and 670 transitions. [2023-12-19 15:42:05,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 15:42:05,161 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 [2023-12-19 15:42:05,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:05,164 INFO L225 Difference]: With dead ends: 491 [2023-12-19 15:42:05,164 INFO L226 Difference]: Without dead ends: 343 [2023-12-19 15:42:05,164 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 [2023-12-19 15:42:05,165 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 [2023-12-19 15:42:05,165 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] [2023-12-19 15:42:05,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2023-12-19 15:42:05,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 166. [2023-12-19 15:42:05,173 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) [2023-12-19 15:42:05,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 228 transitions. [2023-12-19 15:42:05,174 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 228 transitions. Word has length 108 [2023-12-19 15:42:05,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:05,175 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 228 transitions. [2023-12-19 15:42:05,175 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) [2023-12-19 15:42:05,175 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 228 transitions. [2023-12-19 15:42:05,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-19 15:42:05,176 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:05,176 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] [2023-12-19 15:42:05,181 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-19 15:42:05,381 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 [2023-12-19 15:42:05,382 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:05,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:05,382 INFO L85 PathProgramCache]: Analyzing trace with hash 875914630, now seen corresponding path program 1 times [2023-12-19 15:42:05,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:05,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864673255] [2023-12-19 15:42:05,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:05,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:05,402 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:42:05,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1504511630] [2023-12-19 15:42:05,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:05,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:42:05,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:42:05,403 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) [2023-12-19 15:42:05,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-19 15:42:05,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:05,559 INFO L262 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-19 15:42:05,562 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:42:05,831 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 [2023-12-19 15:42:05,908 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 [2023-12-19 15:42:05,910 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 [2023-12-19 15:42:05,925 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 [2023-12-19 15:42:05,932 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 36 proven. 52 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2023-12-19 15:42:05,932 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 15:42:06,069 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 [2023-12-19 15:42:06,170 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 36 proven. 3 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-19 15:42:06,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:06,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864673255] [2023-12-19 15:42:06,170 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:42:06,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504511630] [2023-12-19 15:42:06,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1504511630] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 15:42:06,170 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 15:42:06,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2023-12-19 15:42:06,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330235874] [2023-12-19 15:42:06,171 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 15:42:06,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-19 15:42:06,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:06,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-19 15:42:06,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2023-12-19 15:42:06,172 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) [2023-12-19 15:42:06,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:06,556 INFO L93 Difference]: Finished difference Result 362 states and 497 transitions. [2023-12-19 15:42:06,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-19 15:42:06,557 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 [2023-12-19 15:42:06,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:06,558 INFO L225 Difference]: With dead ends: 362 [2023-12-19 15:42:06,558 INFO L226 Difference]: Without dead ends: 180 [2023-12-19 15:42:06,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=186, Invalid=464, Unknown=0, NotChecked=0, Total=650 [2023-12-19 15:42:06,559 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, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:06,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 467 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:42:06,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-12-19 15:42:06,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 173. [2023-12-19 15:42:06,567 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) [2023-12-19 15:42:06,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 235 transitions. [2023-12-19 15:42:06,568 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 235 transitions. Word has length 109 [2023-12-19 15:42:06,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:06,568 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 235 transitions. [2023-12-19 15:42:06,568 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) [2023-12-19 15:42:06,568 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 235 transitions. [2023-12-19 15:42:06,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-19 15:42:06,569 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:06,569 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] [2023-12-19 15:42:06,590 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-19 15:42:06,775 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 [2023-12-19 15:42:06,776 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:06,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:06,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1610739743, now seen corresponding path program 1 times [2023-12-19 15:42:06,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:06,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471066038] [2023-12-19 15:42:06,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:06,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:06,793 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:42:06,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [444698280] [2023-12-19 15:42:06,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:06,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:42:06,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:42:06,794 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) [2023-12-19 15:42:06,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-19 15:42:06,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:06,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-19 15:42:06,969 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:42:07,119 INFO L349 Elim1Store]: treesize reduction 27, result has 35.7 percent of original size [2023-12-19 15:42:07,119 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 [2023-12-19 15:42:07,135 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 [2023-12-19 15:42:07,145 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 [2023-12-19 15:42:07,176 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 6 proven. 33 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-19 15:42:07,176 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 15:42:07,311 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:07,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:07,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471066038] [2023-12-19 15:42:07,312 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:42:07,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444698280] [2023-12-19 15:42:07,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [444698280] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-19 15:42:07,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 15:42:07,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2023-12-19 15:42:07,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946555999] [2023-12-19 15:42:07,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:07,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 15:42:07,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:07,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 15:42:07,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2023-12-19 15:42:07,313 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) [2023-12-19 15:42:07,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:07,441 INFO L93 Difference]: Finished difference Result 321 states and 433 transitions. [2023-12-19 15:42:07,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 15:42:07,442 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 [2023-12-19 15:42:07,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:07,442 INFO L225 Difference]: With dead ends: 321 [2023-12-19 15:42:07,442 INFO L226 Difference]: Without dead ends: 173 [2023-12-19 15:42:07,443 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 [2023-12-19 15:42:07,443 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 163 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 [2023-12-19 15:42:07,444 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] [2023-12-19 15:42:07,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2023-12-19 15:42:07,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2023-12-19 15:42:07,453 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) [2023-12-19 15:42:07,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 233 transitions. [2023-12-19 15:42:07,454 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 233 transitions. Word has length 110 [2023-12-19 15:42:07,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:07,454 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 233 transitions. [2023-12-19 15:42:07,454 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) [2023-12-19 15:42:07,454 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 233 transitions. [2023-12-19 15:42:07,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-19 15:42:07,455 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:07,455 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] [2023-12-19 15:42:07,464 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-19 15:42:07,662 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 [2023-12-19 15:42:07,662 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:07,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:07,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1432588186, now seen corresponding path program 1 times [2023-12-19 15:42:07,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:07,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771937432] [2023-12-19 15:42:07,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:07,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:07,679 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:42:07,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [284111904] [2023-12-19 15:42:07,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:07,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:42:07,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:42:07,681 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) [2023-12-19 15:42:07,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-19 15:42:07,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:07,815 INFO L262 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-19 15:42:07,818 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:42:07,867 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 [2023-12-19 15:42:08,085 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 [2023-12-19 15:42:08,094 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 10 proven. 162 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2023-12-19 15:42:08,094 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 15:42:08,275 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 [2023-12-19 15:42:08,302 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 9 proven. 30 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-19 15:42:08,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:08,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771937432] [2023-12-19 15:42:08,302 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:42:08,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [284111904] [2023-12-19 15:42:08,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [284111904] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 15:42:08,302 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 15:42:08,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 16 [2023-12-19 15:42:08,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017957867] [2023-12-19 15:42:08,303 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 15:42:08,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-19 15:42:08,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:08,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-19 15:42:08,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2023-12-19 15:42:08,306 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) [2023-12-19 15:42:08,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:08,572 INFO L93 Difference]: Finished difference Result 274 states and 356 transitions. [2023-12-19 15:42:08,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-19 15:42:08,573 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 [2023-12-19 15:42:08,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:08,573 INFO L225 Difference]: With dead ends: 274 [2023-12-19 15:42:08,574 INFO L226 Difference]: Without dead ends: 126 [2023-12-19 15:42:08,574 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 [2023-12-19 15:42:08,574 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 [2023-12-19 15:42:08,575 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] [2023-12-19 15:42:08,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2023-12-19 15:42:08,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 122. [2023-12-19 15:42:08,582 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) [2023-12-19 15:42:08,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 155 transitions. [2023-12-19 15:42:08,583 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 155 transitions. Word has length 113 [2023-12-19 15:42:08,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:08,583 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 155 transitions. [2023-12-19 15:42:08,583 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) [2023-12-19 15:42:08,583 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 155 transitions. [2023-12-19 15:42:08,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-19 15:42:08,584 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:08,584 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] [2023-12-19 15:42:08,621 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-12-19 15:42:08,820 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 [2023-12-19 15:42:08,820 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:08,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:08,821 INFO L85 PathProgramCache]: Analyzing trace with hash -862587025, now seen corresponding path program 1 times [2023-12-19 15:42:08,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:08,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649084711] [2023-12-19 15:42:08,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:08,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:08,837 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:42:08,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [717593842] [2023-12-19 15:42:08,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:08,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:42:08,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:42:08,840 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) [2023-12-19 15:42:08,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-19 15:42:09,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:09,002 INFO L262 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-19 15:42:09,004 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:42:09,008 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 [2023-12-19 15:42:09,040 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 [2023-12-19 15:42:09,048 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:09,048 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:42:09,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:09,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649084711] [2023-12-19 15:42:09,048 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:42:09,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [717593842] [2023-12-19 15:42:09,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [717593842] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:09,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:09,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:42:09,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643956682] [2023-12-19 15:42:09,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:09,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:42:09,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:09,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:42:09,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:42:09,049 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) [2023-12-19 15:42:09,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:09,089 INFO L93 Difference]: Finished difference Result 131 states and 163 transitions. [2023-12-19 15:42:09,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 15:42:09,089 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 [2023-12-19 15:42:09,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:09,090 INFO L225 Difference]: With dead ends: 131 [2023-12-19 15:42:09,090 INFO L226 Difference]: Without dead ends: 129 [2023-12-19 15:42:09,090 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 [2023-12-19 15:42:09,091 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 [2023-12-19 15:42:09,091 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] [2023-12-19 15:42:09,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2023-12-19 15:42:09,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 128. [2023-12-19 15:42:09,098 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) [2023-12-19 15:42:09,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 160 transitions. [2023-12-19 15:42:09,098 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 160 transitions. Word has length 114 [2023-12-19 15:42:09,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:09,099 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 160 transitions. [2023-12-19 15:42:09,099 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) [2023-12-19 15:42:09,099 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 160 transitions. [2023-12-19 15:42:09,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-19 15:42:09,099 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:09,099 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] [2023-12-19 15:42:09,106 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-19 15:42:09,306 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 [2023-12-19 15:42:09,306 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:09,306 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:09,307 INFO L85 PathProgramCache]: Analyzing trace with hash -862527443, now seen corresponding path program 1 times [2023-12-19 15:42:09,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:09,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60933466] [2023-12-19 15:42:09,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:09,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:09,333 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:42:09,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1012440656] [2023-12-19 15:42:09,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:09,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:42:09,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:42:09,358 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) [2023-12-19 15:42:09,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-19 15:42:09,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:09,539 INFO L262 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-19 15:42:09,541 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:42:09,553 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 [2023-12-19 15:42:09,585 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 [2023-12-19 15:42:09,592 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:09,592 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:42:09,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:09,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60933466] [2023-12-19 15:42:09,592 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:42:09,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1012440656] [2023-12-19 15:42:09,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1012440656] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:09,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:09,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:42:09,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874408036] [2023-12-19 15:42:09,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:09,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:42:09,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:09,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:42:09,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:42:09,594 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) [2023-12-19 15:42:09,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:09,642 INFO L93 Difference]: Finished difference Result 232 states and 284 transitions. [2023-12-19 15:42:09,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 15:42:09,642 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 [2023-12-19 15:42:09,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:09,643 INFO L225 Difference]: With dead ends: 232 [2023-12-19 15:42:09,643 INFO L226 Difference]: Without dead ends: 133 [2023-12-19 15:42:09,643 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 [2023-12-19 15:42:09,644 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 [2023-12-19 15:42:09,644 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] [2023-12-19 15:42:09,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2023-12-19 15:42:09,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 132. [2023-12-19 15:42:09,651 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) [2023-12-19 15:42:09,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 162 transitions. [2023-12-19 15:42:09,652 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 162 transitions. Word has length 114 [2023-12-19 15:42:09,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:09,652 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 162 transitions. [2023-12-19 15:42:09,652 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) [2023-12-19 15:42:09,652 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 162 transitions. [2023-12-19 15:42:09,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-19 15:42:09,653 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:09,653 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] [2023-12-19 15:42:09,660 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-12-19 15:42:09,858 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 [2023-12-19 15:42:09,859 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:09,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:09,859 INFO L85 PathProgramCache]: Analyzing trace with hash -805269141, now seen corresponding path program 1 times [2023-12-19 15:42:09,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:09,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737783740] [2023-12-19 15:42:09,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:09,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:09,874 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:42:09,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1558553058] [2023-12-19 15:42:09,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:09,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:42:09,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:42:09,892 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) [2023-12-19 15:42:09,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-19 15:42:10,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:10,083 INFO L262 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-19 15:42:10,086 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:42:10,094 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 [2023-12-19 15:42:10,127 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:10,128 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:42:10,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:10,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737783740] [2023-12-19 15:42:10,128 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:42:10,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558553058] [2023-12-19 15:42:10,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1558553058] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:10,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:10,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:42:10,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279783773] [2023-12-19 15:42:10,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:10,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:42:10,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:10,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:42:10,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:42:10,130 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) [2023-12-19 15:42:10,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:10,187 INFO L93 Difference]: Finished difference Result 239 states and 287 transitions. [2023-12-19 15:42:10,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 15:42:10,187 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 [2023-12-19 15:42:10,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:10,188 INFO L225 Difference]: With dead ends: 239 [2023-12-19 15:42:10,188 INFO L226 Difference]: Without dead ends: 136 [2023-12-19 15:42:10,188 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 [2023-12-19 15:42:10,189 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 [2023-12-19 15:42:10,189 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] [2023-12-19 15:42:10,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2023-12-19 15:42:10,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2023-12-19 15:42:10,198 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) [2023-12-19 15:42:10,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 164 transitions. [2023-12-19 15:42:10,198 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 164 transitions. Word has length 114 [2023-12-19 15:42:10,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:10,198 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 164 transitions. [2023-12-19 15:42:10,199 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) [2023-12-19 15:42:10,199 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 164 transitions. [2023-12-19 15:42:10,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-19 15:42:10,199 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:10,199 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] [2023-12-19 15:42:10,224 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-12-19 15:42:10,405 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 [2023-12-19 15:42:10,406 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:10,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:10,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1614615767, now seen corresponding path program 1 times [2023-12-19 15:42:10,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:10,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060738275] [2023-12-19 15:42:10,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:10,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:10,428 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:42:10,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [408118407] [2023-12-19 15:42:10,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:10,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:42:10,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:42:10,445 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) [2023-12-19 15:42:10,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-19 15:42:10,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:10,649 INFO L262 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-19 15:42:10,651 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:42:10,655 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 [2023-12-19 15:42:10,679 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:10,679 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:42:10,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:10,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060738275] [2023-12-19 15:42:10,680 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:42:10,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [408118407] [2023-12-19 15:42:10,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [408118407] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:10,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:10,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 15:42:10,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621432337] [2023-12-19 15:42:10,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:10,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 15:42:10,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:10,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 15:42:10,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:42:10,681 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) [2023-12-19 15:42:10,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:10,746 INFO L93 Difference]: Finished difference Result 310 states and 369 transitions. [2023-12-19 15:42:10,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 15:42:10,746 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 [2023-12-19 15:42:10,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:10,747 INFO L225 Difference]: With dead ends: 310 [2023-12-19 15:42:10,747 INFO L226 Difference]: Without dead ends: 207 [2023-12-19 15:42:10,747 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 [2023-12-19 15:42:10,748 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 [2023-12-19 15:42:10,748 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] [2023-12-19 15:42:10,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2023-12-19 15:42:10,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 199. [2023-12-19 15:42:10,758 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) [2023-12-19 15:42:10,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 240 transitions. [2023-12-19 15:42:10,759 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 240 transitions. Word has length 114 [2023-12-19 15:42:10,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:10,759 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 240 transitions. [2023-12-19 15:42:10,759 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) [2023-12-19 15:42:10,759 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 240 transitions. [2023-12-19 15:42:10,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-19 15:42:10,760 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:10,760 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] [2023-12-19 15:42:10,765 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-12-19 15:42:10,966 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 [2023-12-19 15:42:10,966 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:10,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:10,966 INFO L85 PathProgramCache]: Analyzing trace with hash -955099930, now seen corresponding path program 1 times [2023-12-19 15:42:10,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:10,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170079736] [2023-12-19 15:42:10,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:10,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:10,981 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:42:10,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1740828925] [2023-12-19 15:42:10,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:10,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:42:10,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:42:10,982 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) [2023-12-19 15:42:10,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-19 15:42:11,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:11,165 INFO L262 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-19 15:42:11,167 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:42:11,215 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 [2023-12-19 15:42:11,456 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 [2023-12-19 15:42:11,463 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 10 proven. 162 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2023-12-19 15:42:11,463 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 15:42:11,627 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 [2023-12-19 15:42:11,658 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 9 proven. 30 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-19 15:42:11,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:11,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170079736] [2023-12-19 15:42:11,658 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:42:11,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740828925] [2023-12-19 15:42:11,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1740828925] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 15:42:11,658 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 15:42:11,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 16 [2023-12-19 15:42:11,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763409916] [2023-12-19 15:42:11,658 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 15:42:11,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-19 15:42:11,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:11,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-19 15:42:11,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2023-12-19 15:42:11,659 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) [2023-12-19 15:42:11,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:11,897 INFO L93 Difference]: Finished difference Result 349 states and 413 transitions. [2023-12-19 15:42:11,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-19 15:42:11,897 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 [2023-12-19 15:42:11,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:11,898 INFO L225 Difference]: With dead ends: 349 [2023-12-19 15:42:11,898 INFO L226 Difference]: Without dead ends: 183 [2023-12-19 15:42:11,898 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 [2023-12-19 15:42:11,899 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 189 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:42:11,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 261 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:42:11,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2023-12-19 15:42:11,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 177. [2023-12-19 15:42:11,918 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) [2023-12-19 15:42:11,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 208 transitions. [2023-12-19 15:42:11,918 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 208 transitions. Word has length 114 [2023-12-19 15:42:11,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:11,919 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 208 transitions. [2023-12-19 15:42:11,919 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) [2023-12-19 15:42:11,919 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 208 transitions. [2023-12-19 15:42:11,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-19 15:42:11,919 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:11,919 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] [2023-12-19 15:42:11,933 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-12-19 15:42:12,126 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 [2023-12-19 15:42:12,126 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:12,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:12,127 INFO L85 PathProgramCache]: Analyzing trace with hash 95165677, now seen corresponding path program 1 times [2023-12-19 15:42:12,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:12,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161981380] [2023-12-19 15:42:12,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:12,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:12,142 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:42:12,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1570977733] [2023-12-19 15:42:12,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:12,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:42:12,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:42:12,143 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) [2023-12-19 15:42:12,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-19 15:42:12,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:12,457 INFO L262 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-19 15:42:12,459 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:42:12,496 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 [2023-12-19 15:42:12,498 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 [2023-12-19 15:42:12,505 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:12,505 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:42:12,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:12,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161981380] [2023-12-19 15:42:12,505 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:42:12,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570977733] [2023-12-19 15:42:12,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570977733] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:12,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:12,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:42:12,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923014027] [2023-12-19 15:42:12,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:12,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:42:12,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:12,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:42:12,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:42:12,506 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) [2023-12-19 15:42:12,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:12,573 INFO L93 Difference]: Finished difference Result 358 states and 413 transitions. [2023-12-19 15:42:12,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 15:42:12,573 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 [2023-12-19 15:42:12,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:12,574 INFO L225 Difference]: With dead ends: 358 [2023-12-19 15:42:12,574 INFO L226 Difference]: Without dead ends: 214 [2023-12-19 15:42:12,574 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 [2023-12-19 15:42:12,575 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 [2023-12-19 15:42:12,575 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] [2023-12-19 15:42:12,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2023-12-19 15:42:12,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 188. [2023-12-19 15:42:12,593 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) [2023-12-19 15:42:12,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 218 transitions. [2023-12-19 15:42:12,593 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 218 transitions. Word has length 115 [2023-12-19 15:42:12,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:12,593 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 218 transitions. [2023-12-19 15:42:12,593 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) [2023-12-19 15:42:12,594 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 218 transitions. [2023-12-19 15:42:12,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-19 15:42:12,594 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:12,594 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] [2023-12-19 15:42:12,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-12-19 15:42:12,801 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 [2023-12-19 15:42:12,801 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:12,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:12,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1981869764, now seen corresponding path program 1 times [2023-12-19 15:42:12,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:12,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516676719] [2023-12-19 15:42:12,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:12,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:12,818 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:42:12,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [714958925] [2023-12-19 15:42:12,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:12,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:42:12,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:42:12,819 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) [2023-12-19 15:42:12,843 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-12-19 15:42:13,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:13,114 INFO L262 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-19 15:42:13,116 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:42:13,151 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 [2023-12-19 15:42:13,153 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 [2023-12-19 15:42:13,159 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:13,159 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:42:13,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:13,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516676719] [2023-12-19 15:42:13,160 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:42:13,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [714958925] [2023-12-19 15:42:13,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [714958925] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:13,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:13,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:42:13,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874215484] [2023-12-19 15:42:13,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:13,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:42:13,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:13,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:42:13,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:42:13,161 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) [2023-12-19 15:42:13,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:13,217 INFO L93 Difference]: Finished difference Result 351 states and 401 transitions. [2023-12-19 15:42:13,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 15:42:13,218 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 [2023-12-19 15:42:13,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:13,218 INFO L225 Difference]: With dead ends: 351 [2023-12-19 15:42:13,218 INFO L226 Difference]: Without dead ends: 196 [2023-12-19 15:42:13,219 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 [2023-12-19 15:42:13,219 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 [2023-12-19 15:42:13,219 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] [2023-12-19 15:42:13,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2023-12-19 15:42:13,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 188. [2023-12-19 15:42:13,229 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) [2023-12-19 15:42:13,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 217 transitions. [2023-12-19 15:42:13,230 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 217 transitions. Word has length 116 [2023-12-19 15:42:13,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:13,230 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 217 transitions. [2023-12-19 15:42:13,230 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) [2023-12-19 15:42:13,230 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 217 transitions. [2023-12-19 15:42:13,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-19 15:42:13,231 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:13,231 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] [2023-12-19 15:42:13,260 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-12-19 15:42:13,438 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 [2023-12-19 15:42:13,438 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:13,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:13,439 INFO L85 PathProgramCache]: Analyzing trace with hash 109363080, now seen corresponding path program 1 times [2023-12-19 15:42:13,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:13,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986866042] [2023-12-19 15:42:13,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:13,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:13,470 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:42:13,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1422798179] [2023-12-19 15:42:13,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:13,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:42:13,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:42:13,472 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) [2023-12-19 15:42:13,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-12-19 15:42:13,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:13,671 INFO L262 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-19 15:42:13,673 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:42:13,683 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 [2023-12-19 15:42:13,726 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 6 proven. 33 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-19 15:42:13,726 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 15:42:13,791 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:13,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:13,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986866042] [2023-12-19 15:42:13,791 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:42:13,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422798179] [2023-12-19 15:42:13,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422798179] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-19 15:42:13,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 15:42:13,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 11 [2023-12-19 15:42:13,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618677929] [2023-12-19 15:42:13,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:13,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 15:42:13,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:13,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 15:42:13,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-19 15:42:13,792 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) [2023-12-19 15:42:13,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:13,904 INFO L93 Difference]: Finished difference Result 363 states and 412 transitions. [2023-12-19 15:42:13,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 15:42:13,904 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 [2023-12-19 15:42:13,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:13,905 INFO L225 Difference]: With dead ends: 363 [2023-12-19 15:42:13,905 INFO L226 Difference]: Without dead ends: 208 [2023-12-19 15:42:13,905 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 [2023-12-19 15:42:13,906 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 [2023-12-19 15:42:13,906 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] [2023-12-19 15:42:13,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2023-12-19 15:42:13,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 200. [2023-12-19 15:42:13,916 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) [2023-12-19 15:42:13,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 230 transitions. [2023-12-19 15:42:13,917 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 230 transitions. Word has length 117 [2023-12-19 15:42:13,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:13,917 INFO L495 AbstractCegarLoop]: Abstraction has 200 states and 230 transitions. [2023-12-19 15:42:13,917 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) [2023-12-19 15:42:13,917 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 230 transitions. [2023-12-19 15:42:13,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-19 15:42:13,918 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:13,918 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] [2023-12-19 15:42:13,931 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-12-19 15:42:14,124 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 [2023-12-19 15:42:14,124 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:14,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:14,124 INFO L85 PathProgramCache]: Analyzing trace with hash 367528518, now seen corresponding path program 1 times [2023-12-19 15:42:14,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:14,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332089289] [2023-12-19 15:42:14,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:14,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:14,140 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:42:14,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2025587274] [2023-12-19 15:42:14,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:14,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:42:14,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:42:14,141 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) [2023-12-19 15:42:14,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-12-19 15:42:14,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:14,437 INFO L262 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-19 15:42:14,440 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:42:14,444 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 [2023-12-19 15:42:14,489 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 [2023-12-19 15:42:14,492 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 [2023-12-19 15:42:14,494 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 [2023-12-19 15:42:14,502 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:14,502 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:42:14,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:14,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332089289] [2023-12-19 15:42:14,502 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:42:14,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025587274] [2023-12-19 15:42:14,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2025587274] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:14,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:14,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:42:14,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465961118] [2023-12-19 15:42:14,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:14,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:42:14,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:14,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:42:14,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:42:14,503 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) [2023-12-19 15:42:14,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:14,606 INFO L93 Difference]: Finished difference Result 372 states and 421 transitions. [2023-12-19 15:42:14,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 15:42:14,607 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 [2023-12-19 15:42:14,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:14,608 INFO L225 Difference]: With dead ends: 372 [2023-12-19 15:42:14,608 INFO L226 Difference]: Without dead ends: 205 [2023-12-19 15:42:14,608 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 [2023-12-19 15:42:14,608 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 [2023-12-19 15:42:14,609 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] [2023-12-19 15:42:14,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2023-12-19 15:42:14,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 190. [2023-12-19 15:42:14,649 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) [2023-12-19 15:42:14,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 217 transitions. [2023-12-19 15:42:14,649 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 217 transitions. Word has length 117 [2023-12-19 15:42:14,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:14,649 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 217 transitions. [2023-12-19 15:42:14,650 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) [2023-12-19 15:42:14,650 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 217 transitions. [2023-12-19 15:42:14,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-19 15:42:14,651 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:14,651 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] [2023-12-19 15:42:14,674 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-12-19 15:42:14,858 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 [2023-12-19 15:42:14,859 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:14,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:14,859 INFO L85 PathProgramCache]: Analyzing trace with hash -24650426, now seen corresponding path program 1 times [2023-12-19 15:42:14,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:14,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574610992] [2023-12-19 15:42:14,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:14,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:14,877 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:42:14,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1097582925] [2023-12-19 15:42:14,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:14,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:42:14,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:42:14,906 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) [2023-12-19 15:42:14,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-12-19 15:42:15,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:15,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-19 15:42:15,241 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:42:15,245 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 [2023-12-19 15:42:15,291 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 [2023-12-19 15:42:15,295 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 [2023-12-19 15:42:15,296 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 [2023-12-19 15:42:15,303 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:15,303 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:42:15,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:15,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574610992] [2023-12-19 15:42:15,303 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:42:15,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1097582925] [2023-12-19 15:42:15,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1097582925] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:15,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:15,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:42:15,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861763526] [2023-12-19 15:42:15,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:15,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:42:15,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:15,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:42:15,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:42:15,305 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) [2023-12-19 15:42:15,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:15,418 INFO L93 Difference]: Finished difference Result 383 states and 432 transitions. [2023-12-19 15:42:15,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 15:42:15,419 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 [2023-12-19 15:42:15,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:15,420 INFO L225 Difference]: With dead ends: 383 [2023-12-19 15:42:15,420 INFO L226 Difference]: Without dead ends: 226 [2023-12-19 15:42:15,420 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 [2023-12-19 15:42:15,421 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 [2023-12-19 15:42:15,421 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] [2023-12-19 15:42:15,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2023-12-19 15:42:15,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 190. [2023-12-19 15:42:15,435 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) [2023-12-19 15:42:15,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 216 transitions. [2023-12-19 15:42:15,435 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 216 transitions. Word has length 117 [2023-12-19 15:42:15,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:15,436 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 216 transitions. [2023-12-19 15:42:15,436 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) [2023-12-19 15:42:15,436 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 216 transitions. [2023-12-19 15:42:15,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-19 15:42:15,436 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:42:15,436 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] [2023-12-19 15:42:15,456 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-12-19 15:42:15,643 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 [2023-12-19 15:42:15,644 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:42:15,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:42:15,644 INFO L85 PathProgramCache]: Analyzing trace with hash 233515012, now seen corresponding path program 1 times [2023-12-19 15:42:15,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:42:15,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292679122] [2023-12-19 15:42:15,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:15,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:42:15,674 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:42:15,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [19286492] [2023-12-19 15:42:15,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:42:15,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:42:15,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:42:15,688 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) [2023-12-19 15:42:15,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-12-19 15:42:15,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:42:15,910 INFO L262 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-19 15:42:15,913 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:42:15,917 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 [2023-12-19 15:42:15,947 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-19 15:42:15,947 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:42:15,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:42:15,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292679122] [2023-12-19 15:42:15,947 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:42:15,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [19286492] [2023-12-19 15:42:15,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [19286492] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:42:15,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:42:15,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 15:42:15,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136478401] [2023-12-19 15:42:15,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:42:15,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 15:42:15,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:42:15,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 15:42:15,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:42:15,948 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) [2023-12-19 15:42:16,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:42:16,055 INFO L93 Difference]: Finished difference Result 344 states and 386 transitions. [2023-12-19 15:42:16,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-19 15:42:16,055 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 [2023-12-19 15:42:16,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:42:16,055 INFO L225 Difference]: With dead ends: 344 [2023-12-19 15:42:16,056 INFO L226 Difference]: Without dead ends: 0 [2023-12-19 15:42:16,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2023-12-19 15:42:16,057 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 [2023-12-19 15:42:16,057 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] [2023-12-19 15:42:16,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-19 15:42:16,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-19 15:42:16,057 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) [2023-12-19 15:42:16,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-19 15:42:16,057 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 117 [2023-12-19 15:42:16,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:42:16,058 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-19 15:42:16,058 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) [2023-12-19 15:42:16,058 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-19 15:42:16,058 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-19 15:42:16,060 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 15:42:16,066 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-12-19 15:42:16,265 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 [2023-12-19 15:42:16,267 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-19 15:42:18,251 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-12-19 15:42:18,251 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-12-19 15:42:18,251 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-12-19 15:42:18,251 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-12-19 15:42:18,251 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)) [2023-12-19 15:42:18,251 INFO L899 garLoopResultBuilder]: For program point L93-1(line 93) no Hoare annotation was computed. [2023-12-19 15:42:18,251 INFO L899 garLoopResultBuilder]: For program point L60(lines 60 68) no Hoare annotation was computed. [2023-12-19 15:42:18,251 INFO L899 garLoopResultBuilder]: For program point L60-1(lines 60 68) no Hoare annotation was computed. [2023-12-19 15:42:18,251 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)))))) [2023-12-19 15:42:18,251 INFO L899 garLoopResultBuilder]: For program point L85-1(line 85) no Hoare annotation was computed. [2023-12-19 15:42:18,251 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-12-19 15:42:18,251 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-12-19 15:42:18,251 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-12-19 15:42:18,252 INFO L899 garLoopResultBuilder]: For program point L69(lines 69 77) no Hoare annotation was computed. [2023-12-19 15:42:18,252 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)) [2023-12-19 15:42:18,252 INFO L899 garLoopResultBuilder]: For program point L94-1(line 94) no Hoare annotation was computed. [2023-12-19 15:42:18,252 INFO L899 garLoopResultBuilder]: For program point L61(lines 61 65) no Hoare annotation was computed. [2023-12-19 15:42:18,252 INFO L899 garLoopResultBuilder]: For program point L70(lines 70 74) no Hoare annotation was computed. [2023-12-19 15:42:18,252 INFO L899 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2023-12-19 15:42:18,252 INFO L899 garLoopResultBuilder]: For program point L62-2(line 62) no Hoare annotation was computed. [2023-12-19 15:42:18,252 INFO L899 garLoopResultBuilder]: For program point L62-3(line 62) no Hoare annotation was computed. [2023-12-19 15:42:18,252 INFO L899 garLoopResultBuilder]: For program point L62-5(line 62) no Hoare annotation was computed. [2023-12-19 15:42:18,252 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)))) [2023-12-19 15:42:18,252 INFO L899 garLoopResultBuilder]: For program point L87-1(line 87) no Hoare annotation was computed. [2023-12-19 15:42:18,252 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)))))) [2023-12-19 15:42:18,252 INFO L899 garLoopResultBuilder]: For program point L112-3(lines 112 118) no Hoare annotation was computed. [2023-12-19 15:42:18,252 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-19 15:42:18,252 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)) [2023-12-19 15:42:18,252 INFO L899 garLoopResultBuilder]: For program point L96-1(line 96) no Hoare annotation was computed. [2023-12-19 15:42:18,253 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)))) [2023-12-19 15:42:18,253 INFO L899 garLoopResultBuilder]: For program point L88-1(line 88) no Hoare annotation was computed. [2023-12-19 15:42:18,253 INFO L899 garLoopResultBuilder]: For program point L55(lines 55 57) no Hoare annotation was computed. [2023-12-19 15:42:18,253 INFO L899 garLoopResultBuilder]: For program point L55-2(lines 55 57) no Hoare annotation was computed. [2023-12-19 15:42:18,253 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)) [2023-12-19 15:42:18,253 INFO L899 garLoopResultBuilder]: For program point L97-1(line 97) no Hoare annotation was computed. [2023-12-19 15:42:18,253 INFO L899 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2023-12-19 15:42:18,253 INFO L899 garLoopResultBuilder]: For program point L56-2(line 56) no Hoare annotation was computed. [2023-12-19 15:42:18,253 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)))) [2023-12-19 15:42:18,253 INFO L899 garLoopResultBuilder]: For program point L81-1(line 81) no Hoare annotation was computed. [2023-12-19 15:42:18,253 INFO L899 garLoopResultBuilder]: For program point L106(line 106) no Hoare annotation was computed. [2023-12-19 15:42:18,253 INFO L899 garLoopResultBuilder]: For program point L106-1(line 106) no Hoare annotation was computed. [2023-12-19 15:42:18,253 INFO L899 garLoopResultBuilder]: For program point L106-3(line 106) no Hoare annotation was computed. [2023-12-19 15:42:18,253 INFO L899 garLoopResultBuilder]: For program point L106-5(line 106) no Hoare annotation was computed. [2023-12-19 15:42:18,253 INFO L899 garLoopResultBuilder]: For program point L106-6(line 106) no Hoare annotation was computed. [2023-12-19 15:42:18,253 INFO L899 garLoopResultBuilder]: For program point L106-7(line 106) no Hoare annotation was computed. [2023-12-19 15:42:18,253 INFO L899 garLoopResultBuilder]: For program point L106-8(line 106) no Hoare annotation was computed. [2023-12-19 15:42:18,253 INFO L899 garLoopResultBuilder]: For program point L106-9(line 106) no Hoare annotation was computed. [2023-12-19 15:42:18,254 INFO L899 garLoopResultBuilder]: For program point L106-11(line 106) no Hoare annotation was computed. [2023-12-19 15:42:18,254 INFO L899 garLoopResultBuilder]: For program point L106-12(line 106) no Hoare annotation was computed. [2023-12-19 15:42:18,254 INFO L899 garLoopResultBuilder]: For program point L106-14(line 106) no Hoare annotation was computed. [2023-12-19 15:42:18,254 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)))) [2023-12-19 15:42:18,254 INFO L899 garLoopResultBuilder]: For program point L106-16(line 106) no Hoare annotation was computed. [2023-12-19 15:42:18,254 INFO L899 garLoopResultBuilder]: For program point L90-1(line 90) no Hoare annotation was computed. [2023-12-19 15:42:18,254 INFO L899 garLoopResultBuilder]: For program point L106-18(line 106) no Hoare annotation was computed. [2023-12-19 15:42:18,254 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-12-19 15:42:18,254 INFO L899 garLoopResultBuilder]: For program point L106-20(line 106) no Hoare annotation was computed. [2023-12-19 15:42:18,254 INFO L899 garLoopResultBuilder]: For program point L106-21(line 106) no Hoare annotation was computed. [2023-12-19 15:42:18,254 INFO L899 garLoopResultBuilder]: For program point L106-22(line 106) no Hoare annotation was computed. [2023-12-19 15:42:18,254 INFO L899 garLoopResultBuilder]: For program point L106-23(line 106) no Hoare annotation was computed. [2023-12-19 15:42:18,254 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)))) [2023-12-19 15:42:18,254 INFO L899 garLoopResultBuilder]: For program point L82-1(line 82) no Hoare annotation was computed. [2023-12-19 15:42:18,254 INFO L899 garLoopResultBuilder]: For program point L106-25(line 106) no Hoare annotation was computed. [2023-12-19 15:42:18,254 INFO L899 garLoopResultBuilder]: For program point L106-27(line 106) no Hoare annotation was computed. [2023-12-19 15:42:18,254 INFO L899 garLoopResultBuilder]: For program point L106-29(line 106) no Hoare annotation was computed. [2023-12-19 15:42:18,254 INFO L899 garLoopResultBuilder]: For program point L106-30(line 106) no Hoare annotation was computed. [2023-12-19 15:42:18,255 INFO L899 garLoopResultBuilder]: For program point L106-32(line 106) no Hoare annotation was computed. [2023-12-19 15:42:18,255 INFO L899 garLoopResultBuilder]: For program point L106-33(line 106) no Hoare annotation was computed. [2023-12-19 15:42:18,255 INFO L899 garLoopResultBuilder]: For program point L106-35(line 106) no Hoare annotation was computed. [2023-12-19 15:42:18,255 INFO L899 garLoopResultBuilder]: For program point L106-36(line 106) no Hoare annotation was computed. [2023-12-19 15:42:18,255 INFO L899 garLoopResultBuilder]: For program point L106-38(line 106) no Hoare annotation was computed. [2023-12-19 15:42:18,255 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)) [2023-12-19 15:42:18,255 INFO L899 garLoopResultBuilder]: For program point L99-1(line 99) no Hoare annotation was computed. [2023-12-19 15:42:18,255 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-19 15:42:18,255 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)))) [2023-12-19 15:42:18,255 INFO L899 garLoopResultBuilder]: For program point L91-1(line 91) no Hoare annotation was computed. [2023-12-19 15:42:18,255 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)) [2023-12-19 15:42:18,255 INFO L899 garLoopResultBuilder]: For program point L100-1(line 100) no Hoare annotation was computed. [2023-12-19 15:42:18,255 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)))))) [2023-12-19 15:42:18,256 INFO L899 garLoopResultBuilder]: For program point L84-1(line 84) no Hoare annotation was computed. [2023-12-19 15:42:18,256 INFO L899 garLoopResultBuilder]: For program point L51(lines 51 78) no Hoare annotation was computed. [2023-12-19 15:42:18,258 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] [2023-12-19 15:42:18,259 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 15:42:18,266 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated [2023-12-19 15:42:18,268 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 [2023-12-19 15:42:18,268 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 [2023-12-19 15:42:18,269 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 [2023-12-19 15:42:18,269 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated [2023-12-19 15:42:18,269 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 [2023-12-19 15:42:18,269 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 [2023-12-19 15:42:18,269 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 [2023-12-19 15:42:18,269 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 [2023-12-19 15:42:18,269 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 [2023-12-19 15:42:18,269 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#12[~var_1_14_Pointer~0!base][0] could not be translated [2023-12-19 15:42:18,270 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 [2023-12-19 15:42:18,270 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 [2023-12-19 15:42:18,270 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 [2023-12-19 15:42:18,270 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 [2023-12-19 15:42:18,270 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated [2023-12-19 15:42:18,270 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated [2023-12-19 15:42:18,270 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 [2023-12-19 15:42:18,270 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 [2023-12-19 15:42:18,270 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 [2023-12-19 15:42:18,270 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 [2023-12-19 15:42:18,270 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 [2023-12-19 15:42:18,270 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 [2023-12-19 15:42:18,270 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 [2023-12-19 15:42:18,271 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated [2023-12-19 15:42:18,271 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 [2023-12-19 15:42:18,271 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 [2023-12-19 15:42:18,271 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 [2023-12-19 15:42:18,271 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated [2023-12-19 15:42:18,271 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 [2023-12-19 15:42:18,271 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 [2023-12-19 15:42:18,271 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 [2023-12-19 15:42:18,271 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 [2023-12-19 15:42:18,271 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 [2023-12-19 15:42:18,271 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#12[~var_1_14_Pointer~0!base][0] could not be translated [2023-12-19 15:42:18,271 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 [2023-12-19 15:42:18,271 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 [2023-12-19 15:42:18,271 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 [2023-12-19 15:42:18,272 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 [2023-12-19 15:42:18,272 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 [2023-12-19 15:42:18,272 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 [2023-12-19 15:42:18,272 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 [2023-12-19 15:42:18,272 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 [2023-12-19 15:42:18,272 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 03:42:18 BoogieIcfgContainer [2023-12-19 15:42:18,272 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 15:42:18,273 INFO L158 Benchmark]: Toolchain (without parser) took 17633.76ms. Allocated memory was 222.3MB in the beginning and 273.7MB in the end (delta: 51.4MB). Free memory was 181.8MB in the beginning and 135.3MB in the end (delta: 46.6MB). Peak memory consumption was 155.1MB. Max. memory is 8.0GB. [2023-12-19 15:42:18,273 INFO L158 Benchmark]: CDTParser took 1.23ms. Allocated memory is still 165.7MB. Free memory is still 113.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 15:42:18,273 INFO L158 Benchmark]: CACSL2BoogieTranslator took 209.98ms. Allocated memory is still 222.3MB. Free memory was 181.3MB in the beginning and 167.9MB in the end (delta: 13.4MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-12-19 15:42:18,273 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.10ms. Allocated memory is still 222.3MB. Free memory was 167.9MB in the beginning and 164.7MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-19 15:42:18,273 INFO L158 Benchmark]: Boogie Preprocessor took 66.02ms. Allocated memory is still 222.3MB. Free memory was 164.7MB in the beginning and 161.1MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-19 15:42:18,273 INFO L158 Benchmark]: RCFGBuilder took 544.07ms. Allocated memory is still 222.3MB. Free memory was 160.6MB in the beginning and 124.9MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. [2023-12-19 15:42:18,273 INFO L158 Benchmark]: TraceAbstraction took 16769.15ms. Allocated memory was 222.3MB in the beginning and 273.7MB in the end (delta: 51.4MB). Free memory was 124.4MB in the beginning and 135.3MB in the end (delta: -10.9MB). Peak memory consumption was 98.4MB. Max. memory is 8.0GB. [2023-12-19 15:42:18,274 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.23ms. Allocated memory is still 165.7MB. Free memory is still 113.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 209.98ms. Allocated memory is still 222.3MB. Free memory was 181.3MB in the beginning and 167.9MB in the end (delta: 13.4MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 39.10ms. Allocated memory is still 222.3MB. Free memory was 167.9MB in the beginning and 164.7MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 66.02ms. Allocated memory is still 222.3MB. Free memory was 164.7MB in the beginning and 161.1MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 544.07ms. Allocated memory is still 222.3MB. Free memory was 160.6MB in the beginning and 124.9MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. * TraceAbstraction took 16769.15ms. Allocated memory was 222.3MB in the beginning and 273.7MB in the end (delta: 51.4MB). Free memory was 124.4MB in the beginning and 135.3MB in the end (delta: -10.9MB). Peak memory consumption was 98.4MB. 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: 16.7s, OverallIterations: 21, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1745 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1745 mSDsluCounter, 8090 SdHoareTripleChecker+Invalid, 1.1s 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, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2953 GetRequests, 2777 SyntacticMatches, 2 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 1.1s 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, 1.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.8s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 2.8s 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! [2023-12-19 15:42:18,297 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...