/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf -i ../../../trunk/examples/svcomp/seq-pthread/cs_stateful-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 19:13:17,924 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 19:13:17,925 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 19:13:17,987 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 19:13:18,056 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf [2022-01-10 19:13:18,077 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 19:13:18,077 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 19:13:18,077 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 19:13:18,078 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 19:13:18,078 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 19:13:18,079 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 19:13:18,079 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 19:13:18,079 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 19:13:18,079 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 19:13:18,079 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 19:13:18,080 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 19:13:18,080 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 19:13:18,080 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 19:13:18,080 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 19:13:18,080 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 19:13:18,080 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 19:13:18,080 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 19:13:18,080 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 19:13:18,080 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 19:13:18,080 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 19:13:18,080 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 19:13:18,081 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 19:13:18,081 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 19:13:18,081 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 19:13:18,081 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 19:13:18,081 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 19:13:18,081 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 19:13:18,081 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 19:13:18,081 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 19:13:18,081 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 19:13:18,081 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 19:13:18,082 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 19:13:18,083 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 19:13:18,083 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_LAZY 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 19:13:18,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 19:13:18,249 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 19:13:18,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 19:13:18,251 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 19:13:18,252 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 19:13:18,252 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-pthread/cs_stateful-2.i [2022-01-10 19:13:18,291 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d0ce88df/bc19c853c5bb4815bd15cafb5acd63a3/FLAG8d64caf98 [2022-01-10 19:13:18,744 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 19:13:18,744 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-pthread/cs_stateful-2.i [2022-01-10 19:13:18,758 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d0ce88df/bc19c853c5bb4815bd15cafb5acd63a3/FLAG8d64caf98 [2022-01-10 19:13:19,276 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d0ce88df/bc19c853c5bb4815bd15cafb5acd63a3 [2022-01-10 19:13:19,279 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 19:13:19,280 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 19:13:19,281 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 19:13:19,281 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 19:13:19,283 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 19:13:19,284 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:13:19" (1/1) ... [2022-01-10 19:13:19,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a356172 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:13:19, skipping insertion in model container [2022-01-10 19:13:19,284 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:13:19" (1/1) ... [2022-01-10 19:13:19,289 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 19:13:19,317 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 19:13:19,576 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-pthread/cs_stateful-2.i[23607,23620] [2022-01-10 19:13:19,688 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 19:13:19,700 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 19:13:19,727 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-pthread/cs_stateful-2.i[23607,23620] [2022-01-10 19:13:19,755 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 19:13:19,797 INFO L208 MainTranslator]: Completed translation [2022-01-10 19:13:19,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:13:19 WrapperNode [2022-01-10 19:13:19,797 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 19:13:19,798 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 19:13:19,798 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 19:13:19,799 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 19:13:19,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:13:19" (1/1) ... [2022-01-10 19:13:19,833 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:13:19" (1/1) ... [2022-01-10 19:13:19,902 INFO L137 Inliner]: procedures = 149, calls = 245, calls flagged for inlining = 63, calls inlined = 241, statements flattened = 2800 [2022-01-10 19:13:19,903 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 19:13:19,903 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 19:13:19,903 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 19:13:19,904 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 19:13:19,910 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:13:19" (1/1) ... [2022-01-10 19:13:19,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:13:19" (1/1) ... [2022-01-10 19:13:19,923 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:13:19" (1/1) ... [2022-01-10 19:13:19,923 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:13:19" (1/1) ... [2022-01-10 19:13:19,960 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:13:19" (1/1) ... [2022-01-10 19:13:19,971 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:13:19" (1/1) ... [2022-01-10 19:13:19,978 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:13:19" (1/1) ... [2022-01-10 19:13:19,988 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 19:13:19,989 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 19:13:19,989 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 19:13:19,989 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 19:13:20,004 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:13:19" (1/1) ... [2022-01-10 19:13:20,010 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 19:13:20,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 19:13:20,045 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 19:13:20,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 19:13:20,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-01-10 19:13:20,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-01-10 19:13:20,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 19:13:20,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-10 19:13:20,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-01-10 19:13:20,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-01-10 19:13:20,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-01-10 19:13:20,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-10 19:13:20,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-01-10 19:13:20,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-01-10 19:13:20,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 19:13:20,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-01-10 19:13:20,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 19:13:20,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 19:13:20,203 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 19:13:20,204 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 19:13:20,221 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 19:13:20,222 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 19:13:20,247 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 19:13:20,248 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 19:13:20,270 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 19:13:20,270 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 19:13:25,027 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##645: assume !(0bv32 == assume_abort_if_not_~cond#1); [2022-01-10 19:13:25,027 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##644: assume 0bv32 == assume_abort_if_not_~cond#1;assume false; [2022-01-10 19:13:25,027 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##638: assume !(0bv32 == assume_abort_if_not_~cond#1); [2022-01-10 19:13:25,027 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##637: assume 0bv32 == assume_abort_if_not_~cond#1;assume false; [2022-01-10 19:13:25,027 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5-12: assume { :end_inline_assume_abort_if_not } true;~__CS_round~0 := ~bvadd32(~zero_extendFrom8To32(~__CS_round~0), ~zero_extendFrom8To32(__CS_cs_~k~0#1))[8:0]; [2022-01-10 19:13:25,028 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5-13: assume { :end_inline_assume_abort_if_not } true;~__CS_round~0 := ~bvadd32(~zero_extendFrom8To32(~__CS_round~0), ~zero_extendFrom8To32(__CS_cs_~k~0#1))[8:0]; [2022-01-10 19:13:25,028 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5-14: assume { :end_inline_assume_abort_if_not } true;~__CS_round~0 := ~bvadd32(~zero_extendFrom8To32(~__CS_round~0), ~zero_extendFrom8To32(__CS_cs_~k~0#1))[8:0]; [2022-01-10 19:13:25,028 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5-42: assume { :end_inline_assume_abort_if_not } true;~__CS_round~0 := ~bvadd32(~zero_extendFrom8To32(~__CS_round~0), ~zero_extendFrom8To32(__CS_cs_~k~0#1))[8:0]; [2022-01-10 19:13:25,028 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5-43: assume { :end_inline_assume_abort_if_not } true;~__CS_round~0 := ~bvadd32(~zero_extendFrom8To32(~__CS_round~0), ~zero_extendFrom8To32(__CS_cs_~k~0#1))[8:0]; [2022-01-10 19:13:25,028 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5-44: assume { :end_inline_assume_abort_if_not } true;~__CS_round~0 := ~bvadd32(~zero_extendFrom8To32(~__CS_round~0), ~zero_extendFrom8To32(__CS_cs_~k~0#1))[8:0]; [2022-01-10 19:13:25,028 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6-24: assume 0bv32 == assume_abort_if_not_~cond#1;assume false; [2022-01-10 19:13:25,028 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6-24: assume !(0bv32 == assume_abort_if_not_~cond#1); [2022-01-10 19:13:25,028 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5-72: assume { :end_inline_assume_abort_if_not } true;~__CS_round~0 := ~bvadd32(~zero_extendFrom8To32(~__CS_round~0), ~zero_extendFrom8To32(__CS_cs_~k~0#1))[8:0]; [2022-01-10 19:13:25,028 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5-73: assume { :end_inline_assume_abort_if_not } true;~__CS_round~0 := ~bvadd32(~zero_extendFrom8To32(~__CS_round~0), ~zero_extendFrom8To32(__CS_cs_~k~0#1))[8:0]; [2022-01-10 19:13:25,028 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5-74: assume { :end_inline_assume_abort_if_not } true;~__CS_round~0 := ~bvadd32(~zero_extendFrom8To32(~__CS_round~0), ~zero_extendFrom8To32(__CS_cs_~k~0#1))[8:0]; [2022-01-10 19:13:25,029 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6-80: assume 0bv32 == assume_abort_if_not_~cond#1;assume false; [2022-01-10 19:13:25,029 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6-80: assume !(0bv32 == assume_abort_if_not_~cond#1); [2022-01-10 19:13:25,029 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6-136: assume 0bv32 == assume_abort_if_not_~cond#1;assume false; [2022-01-10 19:13:25,029 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L6-136: assume !(0bv32 == assume_abort_if_not_~cond#1); [2022-01-10 19:13:25,029 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##378: assume !(0bv32 == assume_abort_if_not_~cond#1); [2022-01-10 19:13:25,029 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##377: assume 0bv32 == assume_abort_if_not_~cond#1;assume false; [2022-01-10 19:13:25,029 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##385: assume !(0bv32 == assume_abort_if_not_~cond#1); [2022-01-10 19:13:25,029 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##384: assume 0bv32 == assume_abort_if_not_~cond#1;assume false; [2022-01-10 19:13:25,029 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L562-10: assume { :end_inline___CS_cs } true; [2022-01-10 19:13:25,029 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L562-11: assume { :end_inline___CS_cs } true; [2022-01-10 19:13:25,029 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L562-12: assume { :end_inline___CS_cs } true; [2022-01-10 19:13:25,030 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L562-38: assume { :end_inline___CS_cs } true; [2022-01-10 19:13:25,030 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L562-39: assume { :end_inline___CS_cs } true; [2022-01-10 19:13:25,030 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L562-40: assume { :end_inline___CS_cs } true; [2022-01-10 19:13:25,030 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L562-66: assume { :end_inline___CS_cs } true; [2022-01-10 19:13:25,030 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L562-67: assume { :end_inline___CS_cs } true; [2022-01-10 19:13:25,030 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L562-68: assume { :end_inline___CS_cs } true; [2022-01-10 19:13:25,030 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L567-30: assume 0bv32 != __CS_cs_#t~nondet4#1 && 1bv32 == ~zero_extendFrom8To32(~__CS_round~0);__CS_cs_#t~ite5#1 := ~zero_extendFrom8To32(~__CS_ret_PREEMPTED~0); [2022-01-10 19:13:25,030 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L567-30: assume !(0bv32 != __CS_cs_#t~nondet4#1 && 1bv32 == ~zero_extendFrom8To32(~__CS_round~0));__CS_cs_#t~ite5#1 := ~zero_extendFrom8To32(~__CS_ret~0); [2022-01-10 19:13:25,030 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L567-32: ~__CS_ret~0 := __CS_cs_#t~ite5#1[8:0];havoc __CS_cs_#t~nondet4#1;havoc __CS_cs_#t~ite5#1; [2022-01-10 19:13:25,030 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L567-33: assume 0bv32 != __CS_cs_#t~nondet4#1 && 1bv32 == ~zero_extendFrom8To32(~__CS_round~0);__CS_cs_#t~ite5#1 := ~zero_extendFrom8To32(~__CS_ret_PREEMPTED~0); [2022-01-10 19:13:25,030 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L567-33: assume !(0bv32 != __CS_cs_#t~nondet4#1 && 1bv32 == ~zero_extendFrom8To32(~__CS_round~0));__CS_cs_#t~ite5#1 := ~zero_extendFrom8To32(~__CS_ret~0); [2022-01-10 19:13:25,031 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L567-35: ~__CS_ret~0 := __CS_cs_#t~ite5#1[8:0];havoc __CS_cs_#t~nondet4#1;havoc __CS_cs_#t~ite5#1; [2022-01-10 19:13:25,031 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L567-36: assume 0bv32 != __CS_cs_#t~nondet4#1 && 1bv32 == ~zero_extendFrom8To32(~__CS_round~0);__CS_cs_#t~ite5#1 := ~zero_extendFrom8To32(~__CS_ret_PREEMPTED~0); [2022-01-10 19:13:25,031 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L567-36: assume !(0bv32 != __CS_cs_#t~nondet4#1 && 1bv32 == ~zero_extendFrom8To32(~__CS_round~0));__CS_cs_#t~ite5#1 := ~zero_extendFrom8To32(~__CS_ret~0); [2022-01-10 19:13:25,031 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L567-38: ~__CS_ret~0 := __CS_cs_#t~ite5#1[8:0];havoc __CS_cs_#t~nondet4#1;havoc __CS_cs_#t~ite5#1; [2022-01-10 19:13:25,031 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L567-114: assume 0bv32 != __CS_cs_#t~nondet4#1 && 1bv32 == ~zero_extendFrom8To32(~__CS_round~0);__CS_cs_#t~ite5#1 := ~zero_extendFrom8To32(~__CS_ret_PREEMPTED~0); [2022-01-10 19:13:25,031 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L567-114: assume !(0bv32 != __CS_cs_#t~nondet4#1 && 1bv32 == ~zero_extendFrom8To32(~__CS_round~0));__CS_cs_#t~ite5#1 := ~zero_extendFrom8To32(~__CS_ret~0); [2022-01-10 19:13:25,031 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L567-116: ~__CS_ret~0 := __CS_cs_#t~ite5#1[8:0];havoc __CS_cs_#t~nondet4#1;havoc __CS_cs_#t~ite5#1; [2022-01-10 19:13:25,031 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L567-117: assume 0bv32 != __CS_cs_#t~nondet4#1 && 1bv32 == ~zero_extendFrom8To32(~__CS_round~0);__CS_cs_#t~ite5#1 := ~zero_extendFrom8To32(~__CS_ret_PREEMPTED~0); [2022-01-10 19:13:25,031 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L567-117: assume !(0bv32 != __CS_cs_#t~nondet4#1 && 1bv32 == ~zero_extendFrom8To32(~__CS_round~0));__CS_cs_#t~ite5#1 := ~zero_extendFrom8To32(~__CS_ret~0); [2022-01-10 19:13:25,031 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L567-119: ~__CS_ret~0 := __CS_cs_#t~ite5#1[8:0];havoc __CS_cs_#t~nondet4#1;havoc __CS_cs_#t~ite5#1; [2022-01-10 19:13:25,031 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L567-120: assume 0bv32 != __CS_cs_#t~nondet4#1 && 1bv32 == ~zero_extendFrom8To32(~__CS_round~0);__CS_cs_#t~ite5#1 := ~zero_extendFrom8To32(~__CS_ret_PREEMPTED~0); [2022-01-10 19:13:25,032 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L567-120: assume !(0bv32 != __CS_cs_#t~nondet4#1 && 1bv32 == ~zero_extendFrom8To32(~__CS_round~0));__CS_cs_#t~ite5#1 := ~zero_extendFrom8To32(~__CS_ret~0); [2022-01-10 19:13:25,032 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L567-122: ~__CS_ret~0 := __CS_cs_#t~ite5#1[8:0];havoc __CS_cs_#t~nondet4#1;havoc __CS_cs_#t~ite5#1; [2022-01-10 19:13:25,032 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L567-198: assume 0bv32 != __CS_cs_#t~nondet4#1 && 1bv32 == ~zero_extendFrom8To32(~__CS_round~0);__CS_cs_#t~ite5#1 := ~zero_extendFrom8To32(~__CS_ret_PREEMPTED~0); [2022-01-10 19:13:25,032 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L567-198: assume !(0bv32 != __CS_cs_#t~nondet4#1 && 1bv32 == ~zero_extendFrom8To32(~__CS_round~0));__CS_cs_#t~ite5#1 := ~zero_extendFrom8To32(~__CS_ret~0); [2022-01-10 19:13:25,032 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L567-200: ~__CS_ret~0 := __CS_cs_#t~ite5#1[8:0];havoc __CS_cs_#t~nondet4#1;havoc __CS_cs_#t~ite5#1; [2022-01-10 19:13:25,032 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L567-201: assume 0bv32 != __CS_cs_#t~nondet4#1 && 1bv32 == ~zero_extendFrom8To32(~__CS_round~0);__CS_cs_#t~ite5#1 := ~zero_extendFrom8To32(~__CS_ret_PREEMPTED~0); [2022-01-10 19:13:25,032 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L567-201: assume !(0bv32 != __CS_cs_#t~nondet4#1 && 1bv32 == ~zero_extendFrom8To32(~__CS_round~0));__CS_cs_#t~ite5#1 := ~zero_extendFrom8To32(~__CS_ret~0); [2022-01-10 19:13:25,032 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L567-203: ~__CS_ret~0 := __CS_cs_#t~ite5#1[8:0];havoc __CS_cs_#t~nondet4#1;havoc __CS_cs_#t~ite5#1; [2022-01-10 19:13:25,032 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L567-204: assume 0bv32 != __CS_cs_#t~nondet4#1 && 1bv32 == ~zero_extendFrom8To32(~__CS_round~0);__CS_cs_#t~ite5#1 := ~zero_extendFrom8To32(~__CS_ret_PREEMPTED~0); [2022-01-10 19:13:25,032 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L567-204: assume !(0bv32 != __CS_cs_#t~nondet4#1 && 1bv32 == ~zero_extendFrom8To32(~__CS_round~0));__CS_cs_#t~ite5#1 := ~zero_extendFrom8To32(~__CS_ret~0); [2022-01-10 19:13:25,033 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L567-206: ~__CS_ret~0 := __CS_cs_#t~ite5#1[8:0];havoc __CS_cs_#t~nondet4#1;havoc __CS_cs_#t~ite5#1; [2022-01-10 19:13:25,033 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L746: assume 0bv32 != ~zero_extendFrom8To32(~__CS_ret~0);main_thread_#res#1.base, main_thread_#res#1.offset := 0bv64, 0bv64;call ULTIMATE.dealloc(main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset);havoc main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset);havoc main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset; [2022-01-10 19:13:25,033 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L746: assume !(0bv32 != ~zero_extendFrom8To32(~__CS_ret~0)); [2022-01-10 19:13:25,033 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L746-2: assume 0bv32 != ~zero_extendFrom8To32(~__CS_ret~0);main_thread_#res#1.base, main_thread_#res#1.offset := 0bv64, 0bv64;call ULTIMATE.dealloc(main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset);havoc main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset);havoc main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset; [2022-01-10 19:13:25,033 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L746-2: assume !(0bv32 != ~zero_extendFrom8To32(~__CS_ret~0)); [2022-01-10 19:13:25,033 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L746-4: assume 0bv32 != ~zero_extendFrom8To32(~__CS_ret~0);main_thread_#res#1.base, main_thread_#res#1.offset := 0bv64, 0bv64;call ULTIMATE.dealloc(main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset);havoc main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset);havoc main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset; [2022-01-10 19:13:25,033 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L746-4: assume !(0bv32 != ~zero_extendFrom8To32(~__CS_ret~0)); [2022-01-10 19:13:25,033 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L748: assume 0bv32 != ~zero_extendFrom8To32(~__CS_ret~0);main_thread_#res#1.base, main_thread_#res#1.offset := 0bv64, 0bv64;call ULTIMATE.dealloc(main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset);havoc main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset);havoc main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset; [2022-01-10 19:13:25,033 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L748: assume !(0bv32 != ~zero_extendFrom8To32(~__CS_ret~0));assume { :begin_inline___CS_cs } true;havoc __CS_cs_#t~nondet3#1, __CS_cs_#t~nondet4#1, __CS_cs_#t~ite5#1, __CS_cs_~k~0#1;__CS_cs_~k~0#1 := __CS_cs_#t~nondet3#1;havoc __CS_cs_#t~nondet3#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := (if ~bvslt32(~bvadd32(~zero_extendFrom8To32(~__CS_round~0), ~zero_extendFrom8To32(__CS_cs_~k~0#1)), 2bv32) then 1bv32 else 0bv32);havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; [2022-01-10 19:13:25,034 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L748-2: assume 0bv32 != ~zero_extendFrom8To32(~__CS_ret~0);main_thread_#res#1.base, main_thread_#res#1.offset := 0bv64, 0bv64;call ULTIMATE.dealloc(main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset);havoc main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset);havoc main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset; [2022-01-10 19:13:25,034 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L748-2: assume !(0bv32 != ~zero_extendFrom8To32(~__CS_ret~0));assume { :begin_inline___CS_cs } true;havoc __CS_cs_#t~nondet3#1, __CS_cs_#t~nondet4#1, __CS_cs_#t~ite5#1, __CS_cs_~k~0#1;__CS_cs_~k~0#1 := __CS_cs_#t~nondet3#1;havoc __CS_cs_#t~nondet3#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := (if ~bvslt32(~bvadd32(~zero_extendFrom8To32(~__CS_round~0), ~zero_extendFrom8To32(__CS_cs_~k~0#1)), 2bv32) then 1bv32 else 0bv32);havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; [2022-01-10 19:13:25,034 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L748-4: assume 0bv32 != ~zero_extendFrom8To32(~__CS_ret~0);main_thread_#res#1.base, main_thread_#res#1.offset := 0bv64, 0bv64;call ULTIMATE.dealloc(main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset);havoc main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset);havoc main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset; [2022-01-10 19:13:25,034 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L748-4: assume !(0bv32 != ~zero_extendFrom8To32(~__CS_ret~0));assume { :begin_inline___CS_cs } true;havoc __CS_cs_#t~nondet3#1, __CS_cs_#t~nondet4#1, __CS_cs_#t~ite5#1, __CS_cs_~k~0#1;__CS_cs_~k~0#1 := __CS_cs_#t~nondet3#1;havoc __CS_cs_#t~nondet3#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := (if ~bvslt32(~bvadd32(~zero_extendFrom8To32(~__CS_round~0), ~zero_extendFrom8To32(__CS_cs_~k~0#1)), 2bv32) then 1bv32 else 0bv32);havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; [2022-01-10 19:13:25,034 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L750: assume 0bv32 != ~zero_extendFrom8To32(~__CS_ret~0);main_thread_#res#1.base, main_thread_#res#1.offset := 0bv64, 0bv64;call ULTIMATE.dealloc(main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset);havoc main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset);havoc main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset; [2022-01-10 19:13:25,034 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L750: assume !(0bv32 != ~zero_extendFrom8To32(~__CS_ret~0)); [2022-01-10 19:13:25,034 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L750-2: assume 0bv32 != ~zero_extendFrom8To32(~__CS_ret~0);main_thread_#res#1.base, main_thread_#res#1.offset := 0bv64, 0bv64;call ULTIMATE.dealloc(main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset);havoc main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset);havoc main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset; [2022-01-10 19:13:25,034 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L750-2: assume !(0bv32 != ~zero_extendFrom8To32(~__CS_ret~0)); [2022-01-10 19:13:25,034 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L750-4: assume 0bv32 != ~zero_extendFrom8To32(~__CS_ret~0);main_thread_#res#1.base, main_thread_#res#1.offset := 0bv64, 0bv64;call ULTIMATE.dealloc(main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset);havoc main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset);havoc main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset; [2022-01-10 19:13:25,034 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L750-4: assume !(0bv32 != ~zero_extendFrom8To32(~__CS_ret~0)); [2022-01-10 19:13:25,035 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##118: assume !(0bv32 == assume_abort_if_not_~cond#1); [2022-01-10 19:13:25,035 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##117: assume 0bv32 == assume_abort_if_not_~cond#1;assume false; [2022-01-10 19:13:25,035 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##125: assume !(0bv32 == assume_abort_if_not_~cond#1); [2022-01-10 19:13:25,035 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##124: assume 0bv32 == assume_abort_if_not_~cond#1;assume false; [2022-01-10 19:13:25,035 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 19:13:25,046 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 19:13:25,046 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-10 19:13:25,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:13:25 BoogieIcfgContainer [2022-01-10 19:13:25,048 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 19:13:25,049 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 19:13:25,049 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 19:13:25,050 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 19:13:25,052 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:13:25" (1/1) ... [2022-01-10 19:13:25,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 07:13:25 BasicIcfg [2022-01-10 19:13:25,442 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 19:13:25,443 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 19:13:25,443 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 19:13:25,445 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 19:13:25,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 07:13:19" (1/4) ... [2022-01-10 19:13:25,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c305df5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 07:13:25, skipping insertion in model container [2022-01-10 19:13:25,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:13:19" (2/4) ... [2022-01-10 19:13:25,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c305df5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 07:13:25, skipping insertion in model container [2022-01-10 19:13:25,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:13:25" (3/4) ... [2022-01-10 19:13:25,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c305df5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 07:13:25, skipping insertion in model container [2022-01-10 19:13:25,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 07:13:25" (4/4) ... [2022-01-10 19:13:25,457 INFO L111 eAbstractionObserver]: Analyzing ICFG cs_stateful-2.iTransformedIcfg [2022-01-10 19:13:25,461 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 19:13:25,466 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 19:13:25,507 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 19:13:25,514 INFO L339 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=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 19:13:25,514 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 19:13:25,539 INFO L276 IsEmpty]: Start isEmpty. Operand has 646 states, 644 states have (on average 1.4953416149068324) internal successors, (963), 645 states have internal predecessors, (963), 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) [2022-01-10 19:13:25,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-01-10 19:13:25,553 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:13:25,554 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:13:25,554 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:13:25,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:13:25,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1936553444, now seen corresponding path program 1 times [2022-01-10 19:13:25,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:13:25,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433553872] [2022-01-10 19:13:25,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:13:25,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:13:25,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:13:25,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:13:25,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:13:25,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433553872] [2022-01-10 19:13:25,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433553872] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:13:25,963 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:13:25,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:13:25,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391168476] [2022-01-10 19:13:25,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:13:25,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 19:13:25,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:13:25,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 19:13:25,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 19:13:25,998 INFO L87 Difference]: Start difference. First operand has 646 states, 644 states have (on average 1.4953416149068324) internal successors, (963), 645 states have internal predecessors, (963), 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) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 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) [2022-01-10 19:13:26,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:13:26,045 INFO L93 Difference]: Finished difference Result 1290 states and 1924 transitions. [2022-01-10 19:13:26,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 19:13:26,060 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-01-10 19:13:26,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:13:26,078 INFO L225 Difference]: With dead ends: 1290 [2022-01-10 19:13:26,078 INFO L226 Difference]: Without dead ends: 642 [2022-01-10 19:13:26,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 19:13:26,087 INFO L933 BasicCegarLoop]: 869 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:13:26,088 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 869 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:13:26,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2022-01-10 19:13:26,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 642. [2022-01-10 19:13:26,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 641 states have (on average 1.3494539781591264) internal successors, (865), 641 states have internal predecessors, (865), 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) [2022-01-10 19:13:26,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 865 transitions. [2022-01-10 19:13:26,156 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 865 transitions. Word has length 32 [2022-01-10 19:13:26,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:13:26,156 INFO L470 AbstractCegarLoop]: Abstraction has 642 states and 865 transitions. [2022-01-10 19:13:26,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 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) [2022-01-10 19:13:26,156 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 865 transitions. [2022-01-10 19:13:26,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-01-10 19:13:26,158 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:13:26,158 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:13:26,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 19:13:26,158 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:13:26,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:13:26,159 INFO L85 PathProgramCache]: Analyzing trace with hash -808137607, now seen corresponding path program 1 times [2022-01-10 19:13:26,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:13:26,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446669485] [2022-01-10 19:13:26,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:13:26,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:13:27,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:13:27,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:13:27,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:13:27,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446669485] [2022-01-10 19:13:27,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446669485] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:13:27,368 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:13:27,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:13:27,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939415909] [2022-01-10 19:13:27,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:13:27,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 19:13:27,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:13:27,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 19:13:27,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 19:13:27,370 INFO L87 Difference]: Start difference. First operand 642 states and 865 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 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) [2022-01-10 19:13:27,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:13:27,561 INFO L93 Difference]: Finished difference Result 1176 states and 1581 transitions. [2022-01-10 19:13:27,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 19:13:27,562 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-01-10 19:13:27,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:13:27,565 INFO L225 Difference]: With dead ends: 1176 [2022-01-10 19:13:27,566 INFO L226 Difference]: Without dead ends: 1125 [2022-01-10 19:13:27,566 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 19:13:27,567 INFO L933 BasicCegarLoop]: 1254 mSDtfsCounter, 807 mSDsluCounter, 1945 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 3199 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 19:13:27,568 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [807 Valid, 3199 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 19:13:27,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1125 states. [2022-01-10 19:13:27,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1125 to 1122. [2022-01-10 19:13:27,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1122 states, 1121 states have (on average 1.3336306868867083) internal successors, (1495), 1121 states have internal predecessors, (1495), 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) [2022-01-10 19:13:27,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 1495 transitions. [2022-01-10 19:13:27,605 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 1495 transitions. Word has length 32 [2022-01-10 19:13:27,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:13:27,605 INFO L470 AbstractCegarLoop]: Abstraction has 1122 states and 1495 transitions. [2022-01-10 19:13:27,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 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) [2022-01-10 19:13:27,606 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 1495 transitions. [2022-01-10 19:13:27,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-10 19:13:27,621 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:13:27,621 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:13:27,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 19:13:27,621 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:13:27,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:13:27,622 INFO L85 PathProgramCache]: Analyzing trace with hash -941281239, now seen corresponding path program 1 times [2022-01-10 19:13:27,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:13:27,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753141114] [2022-01-10 19:13:27,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:13:27,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:13:28,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:13:28,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:13:28,631 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:13:28,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753141114] [2022-01-10 19:13:28,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753141114] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:13:28,631 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:13:28,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 19:13:28,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689642053] [2022-01-10 19:13:28,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:13:28,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 19:13:28,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:13:28,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 19:13:28,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 19:13:28,633 INFO L87 Difference]: Start difference. First operand 1122 states and 1495 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 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) [2022-01-10 19:13:29,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:13:29,204 INFO L93 Difference]: Finished difference Result 2926 states and 3871 transitions. [2022-01-10 19:13:29,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 19:13:29,205 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-01-10 19:13:29,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:13:29,210 INFO L225 Difference]: With dead ends: 2926 [2022-01-10 19:13:29,210 INFO L226 Difference]: Without dead ends: 2025 [2022-01-10 19:13:29,212 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-10 19:13:29,213 INFO L933 BasicCegarLoop]: 937 mSDtfsCounter, 2171 mSDsluCounter, 993 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2171 SdHoareTripleChecker+Valid, 1930 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 19:13:29,214 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2171 Valid, 1930 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 19:13:29,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2025 states. [2022-01-10 19:13:29,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2025 to 1038. [2022-01-10 19:13:29,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1038 states, 1037 states have (on average 1.3326904532304724) internal successors, (1382), 1037 states have internal predecessors, (1382), 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) [2022-01-10 19:13:29,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1038 states to 1038 states and 1382 transitions. [2022-01-10 19:13:29,242 INFO L78 Accepts]: Start accepts. Automaton has 1038 states and 1382 transitions. Word has length 66 [2022-01-10 19:13:29,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:13:29,243 INFO L470 AbstractCegarLoop]: Abstraction has 1038 states and 1382 transitions. [2022-01-10 19:13:29,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 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) [2022-01-10 19:13:29,243 INFO L276 IsEmpty]: Start isEmpty. Operand 1038 states and 1382 transitions. [2022-01-10 19:13:29,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-10 19:13:29,244 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:13:29,244 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:13:29,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 19:13:29,245 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:13:29,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:13:29,245 INFO L85 PathProgramCache]: Analyzing trace with hash 799235120, now seen corresponding path program 1 times [2022-01-10 19:13:29,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:13:29,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564126414] [2022-01-10 19:13:29,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:13:29,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:13:29,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:13:30,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:13:30,105 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:13:30,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564126414] [2022-01-10 19:13:30,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564126414] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:13:30,105 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:13:30,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 19:13:30,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529795848] [2022-01-10 19:13:30,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:13:30,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 19:13:30,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:13:30,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 19:13:30,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 19:13:30,107 INFO L87 Difference]: Start difference. First operand 1038 states and 1382 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 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) [2022-01-10 19:13:32,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:13:32,065 INFO L93 Difference]: Finished difference Result 2633 states and 3451 transitions. [2022-01-10 19:13:32,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 19:13:32,065 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-01-10 19:13:32,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:13:32,069 INFO L225 Difference]: With dead ends: 2633 [2022-01-10 19:13:32,070 INFO L226 Difference]: Without dead ends: 1521 [2022-01-10 19:13:32,071 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-10 19:13:32,072 INFO L933 BasicCegarLoop]: 586 mSDtfsCounter, 1183 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 869 mSolverCounterSat, 398 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1183 SdHoareTripleChecker+Valid, 1439 SdHoareTripleChecker+Invalid, 1267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 398 IncrementalHoareTripleChecker+Valid, 869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-01-10 19:13:32,072 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1183 Valid, 1439 Invalid, 1267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [398 Valid, 869 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-01-10 19:13:32,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2022-01-10 19:13:32,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 1437. [2022-01-10 19:13:32,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1437 states, 1436 states have (on average 1.2374651810584958) internal successors, (1777), 1436 states have internal predecessors, (1777), 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) [2022-01-10 19:13:32,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1437 states to 1437 states and 1777 transitions. [2022-01-10 19:13:32,104 INFO L78 Accepts]: Start accepts. Automaton has 1437 states and 1777 transitions. Word has length 66 [2022-01-10 19:13:32,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:13:32,104 INFO L470 AbstractCegarLoop]: Abstraction has 1437 states and 1777 transitions. [2022-01-10 19:13:32,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 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) [2022-01-10 19:13:32,105 INFO L276 IsEmpty]: Start isEmpty. Operand 1437 states and 1777 transitions. [2022-01-10 19:13:32,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-10 19:13:32,107 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:13:32,107 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:13:32,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 19:13:32,108 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:13:32,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:13:32,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1296861256, now seen corresponding path program 1 times [2022-01-10 19:13:32,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:13:32,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003360849] [2022-01-10 19:13:32,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:13:32,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:13:32,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:13:32,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:13:32,823 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:13:32,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003360849] [2022-01-10 19:13:32,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003360849] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:13:32,823 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:13:32,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 19:13:32,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681866353] [2022-01-10 19:13:32,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:13:32,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 19:13:32,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:13:32,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 19:13:32,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 19:13:32,824 INFO L87 Difference]: Start difference. First operand 1437 states and 1777 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2022-01-10 19:13:33,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:13:33,507 INFO L93 Difference]: Finished difference Result 3877 states and 4772 transitions. [2022-01-10 19:13:33,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 19:13:33,508 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-01-10 19:13:33,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:13:33,516 INFO L225 Difference]: With dead ends: 3877 [2022-01-10 19:13:33,516 INFO L226 Difference]: Without dead ends: 2633 [2022-01-10 19:13:33,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 19:13:33,521 INFO L933 BasicCegarLoop]: 891 mSDtfsCounter, 1339 mSDsluCounter, 993 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1339 SdHoareTripleChecker+Valid, 1884 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 19:13:33,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1339 Valid, 1884 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 19:13:33,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2633 states. [2022-01-10 19:13:33,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2633 to 1307. [2022-01-10 19:13:33,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1307 states, 1306 states have (on average 1.2366003062787136) internal successors, (1615), 1306 states have internal predecessors, (1615), 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) [2022-01-10 19:13:33,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1307 states to 1307 states and 1615 transitions. [2022-01-10 19:13:33,594 INFO L78 Accepts]: Start accepts. Automaton has 1307 states and 1615 transitions. Word has length 67 [2022-01-10 19:13:33,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:13:33,595 INFO L470 AbstractCegarLoop]: Abstraction has 1307 states and 1615 transitions. [2022-01-10 19:13:33,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2022-01-10 19:13:33,595 INFO L276 IsEmpty]: Start isEmpty. Operand 1307 states and 1615 transitions. [2022-01-10 19:13:33,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-10 19:13:33,596 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:13:33,596 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:13:33,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 19:13:33,596 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:13:33,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:13:33,597 INFO L85 PathProgramCache]: Analyzing trace with hash 559179143, now seen corresponding path program 1 times [2022-01-10 19:13:33,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:13:33,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239430178] [2022-01-10 19:13:33,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:13:33,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:13:34,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:13:34,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:13:34,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:13:34,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239430178] [2022-01-10 19:13:34,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239430178] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:13:34,181 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:13:34,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:13:34,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015472358] [2022-01-10 19:13:34,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:13:34,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 19:13:34,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:13:34,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 19:13:34,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 19:13:34,182 INFO L87 Difference]: Start difference. First operand 1307 states and 1615 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 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) [2022-01-10 19:13:36,207 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 19:13:37,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:13:37,133 INFO L93 Difference]: Finished difference Result 3295 states and 4043 transitions. [2022-01-10 19:13:37,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 19:13:37,148 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-01-10 19:13:37,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:13:37,154 INFO L225 Difference]: With dead ends: 3295 [2022-01-10 19:13:37,154 INFO L226 Difference]: Without dead ends: 2622 [2022-01-10 19:13:37,157 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 19:13:37,160 INFO L933 BasicCegarLoop]: 857 mSDtfsCounter, 995 mSDsluCounter, 1535 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 995 SdHoareTripleChecker+Valid, 2392 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-01-10 19:13:37,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [995 Valid, 2392 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 1 Unknown, 0 Unchecked, 2.8s Time] [2022-01-10 19:13:37,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2622 states. [2022-01-10 19:13:37,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2622 to 1457. [2022-01-10 19:13:37,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1457 states, 1456 states have (on average 1.2438186813186813) internal successors, (1811), 1456 states have internal predecessors, (1811), 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) [2022-01-10 19:13:37,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1457 states to 1457 states and 1811 transitions. [2022-01-10 19:13:37,197 INFO L78 Accepts]: Start accepts. Automaton has 1457 states and 1811 transitions. Word has length 67 [2022-01-10 19:13:37,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:13:37,198 INFO L470 AbstractCegarLoop]: Abstraction has 1457 states and 1811 transitions. [2022-01-10 19:13:37,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 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) [2022-01-10 19:13:37,198 INFO L276 IsEmpty]: Start isEmpty. Operand 1457 states and 1811 transitions. [2022-01-10 19:13:37,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-10 19:13:37,199 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:13:37,199 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:13:37,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 19:13:37,199 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:13:37,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:13:37,200 INFO L85 PathProgramCache]: Analyzing trace with hash -877211604, now seen corresponding path program 1 times [2022-01-10 19:13:37,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:13:37,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477970019] [2022-01-10 19:13:37,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:13:37,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:13:43,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:13:43,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:13:43,406 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:13:43,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477970019] [2022-01-10 19:13:43,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477970019] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:13:43,406 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:13:43,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:13:43,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901077589] [2022-01-10 19:13:43,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:13:43,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:13:43,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:13:43,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:13:43,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:13:43,407 INFO L87 Difference]: Start difference. First operand 1457 states and 1811 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2022-01-10 19:13:43,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:13:43,516 INFO L93 Difference]: Finished difference Result 2912 states and 3620 transitions. [2022-01-10 19:13:43,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:13:43,518 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-01-10 19:13:43,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:13:43,521 INFO L225 Difference]: With dead ends: 2912 [2022-01-10 19:13:43,521 INFO L226 Difference]: Without dead ends: 1461 [2022-01-10 19:13:43,522 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:13:43,522 INFO L933 BasicCegarLoop]: 717 mSDtfsCounter, 4 mSDsluCounter, 715 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1432 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 19:13:43,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 1432 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 19:13:43,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1461 states. [2022-01-10 19:13:43,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1461 to 1458. [2022-01-10 19:13:43,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1458 states, 1457 states have (on average 1.2436513383665064) internal successors, (1812), 1457 states have internal predecessors, (1812), 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) [2022-01-10 19:13:43,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 1812 transitions. [2022-01-10 19:13:43,570 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 1812 transitions. Word has length 67 [2022-01-10 19:13:43,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:13:43,570 INFO L470 AbstractCegarLoop]: Abstraction has 1458 states and 1812 transitions. [2022-01-10 19:13:43,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2022-01-10 19:13:43,571 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 1812 transitions. [2022-01-10 19:13:43,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-01-10 19:13:43,572 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:13:43,572 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:13:43,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 19:13:43,572 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:13:43,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:13:43,572 INFO L85 PathProgramCache]: Analyzing trace with hash -523618427, now seen corresponding path program 1 times [2022-01-10 19:13:43,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:13:43,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283944422] [2022-01-10 19:13:43,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:13:43,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:13:50,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:13:50,152 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:13:50,152 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:13:50,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283944422] [2022-01-10 19:13:50,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283944422] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:13:50,152 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:13:50,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:13:50,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053872267] [2022-01-10 19:13:50,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:13:50,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:13:50,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:13:50,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:13:50,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:13:50,153 INFO L87 Difference]: Start difference. First operand 1458 states and 1812 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2022-01-10 19:13:50,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:13:50,190 INFO L93 Difference]: Finished difference Result 2915 states and 3624 transitions. [2022-01-10 19:13:50,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:13:50,191 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2022-01-10 19:13:50,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:13:50,194 INFO L225 Difference]: With dead ends: 2915 [2022-01-10 19:13:50,194 INFO L226 Difference]: Without dead ends: 1460 [2022-01-10 19:13:50,195 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:13:50,196 INFO L933 BasicCegarLoop]: 718 mSDtfsCounter, 1 mSDsluCounter, 715 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1433 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:13:50,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1433 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:13:50,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1460 states. [2022-01-10 19:13:50,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1460 to 1459. [2022-01-10 19:13:50,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1459 states, 1458 states have (on average 1.2434842249657065) internal successors, (1813), 1458 states have internal predecessors, (1813), 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) [2022-01-10 19:13:50,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1459 states to 1459 states and 1813 transitions. [2022-01-10 19:13:50,224 INFO L78 Accepts]: Start accepts. Automaton has 1459 states and 1813 transitions. Word has length 70 [2022-01-10 19:13:50,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:13:50,225 INFO L470 AbstractCegarLoop]: Abstraction has 1459 states and 1813 transitions. [2022-01-10 19:13:50,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2022-01-10 19:13:50,225 INFO L276 IsEmpty]: Start isEmpty. Operand 1459 states and 1813 transitions. [2022-01-10 19:13:50,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-01-10 19:13:50,226 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:13:50,226 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:13:50,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 19:13:50,226 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:13:50,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:13:50,227 INFO L85 PathProgramCache]: Analyzing trace with hash 490920161, now seen corresponding path program 1 times [2022-01-10 19:13:50,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:13:50,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859903804] [2022-01-10 19:13:50,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:13:50,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:13:54,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:13:54,234 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:13:54,234 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:13:54,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859903804] [2022-01-10 19:13:54,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859903804] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 19:13:54,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [321130474] [2022-01-10 19:13:54,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:13:54,235 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 19:13:54,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 19:13:54,236 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) [2022-01-10 19:13:54,239 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process