/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_64.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.0/module_get_put-drivers-net-pppox.ko.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 14:26:33,980 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 14:26:33,984 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 14:26:34,002 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 14:26:34,002 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 14:26:34,004 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 14:26:34,006 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 14:26:34,017 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 14:26:34,021 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 14:26:34,024 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 14:26:34,026 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 14:26:34,028 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 14:26:34,028 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 14:26:34,030 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 14:26:34,032 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 14:26:34,033 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 14:26:34,034 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 14:26:34,036 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 14:26:34,038 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 14:26:34,043 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 14:26:34,048 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 14:26:34,051 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 14:26:34,052 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 14:26:34,053 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 14:26:34,055 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 14:26:34,055 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 14:26:34,055 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 14:26:34,058 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 14:26:34,058 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 14:26:34,059 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 14:26:34,059 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 14:26:34,060 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 14:26:34,061 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 14:26:34,062 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 14:26:34,063 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 14:26:34,063 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 14:26:34,064 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 14:26:34,064 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 14:26:34,065 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 14:26:34,065 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 14:26:34,067 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 14:26:34,068 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_64.epf [2020-07-07 14:26:34,087 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 14:26:34,088 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 14:26:34,089 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 14:26:34,089 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 14:26:34,089 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 14:26:34,089 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 14:26:34,090 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 14:26:34,090 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 14:26:34,090 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 14:26:34,090 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 14:26:34,090 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 14:26:34,091 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 14:26:34,091 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 14:26:34,091 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 14:26:34,091 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 14:26:34,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 14:26:34,092 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 14:26:34,092 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 14:26:34,092 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 14:26:34,092 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 14:26:34,365 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 14:26:34,382 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 14:26:34,386 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 14:26:34,388 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 14:26:34,388 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 14:26:34,389 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.0/module_get_put-drivers-net-pppox.ko.cil.out.i [2020-07-07 14:26:34,465 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a04e509f/f95c9f357f5143aba48c66683abd0aa8/FLAG680e825a7 [2020-07-07 14:26:35,182 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 14:26:35,183 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.0/module_get_put-drivers-net-pppox.ko.cil.out.i [2020-07-07 14:26:35,216 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a04e509f/f95c9f357f5143aba48c66683abd0aa8/FLAG680e825a7 [2020-07-07 14:26:35,324 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a04e509f/f95c9f357f5143aba48c66683abd0aa8 [2020-07-07 14:26:35,334 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 14:26:35,336 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 14:26:35,337 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 14:26:35,338 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 14:26:35,341 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 14:26:35,342 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 02:26:35" (1/1) ... [2020-07-07 14:26:35,346 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@582fec3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:26:35, skipping insertion in model container [2020-07-07 14:26:35,346 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 02:26:35" (1/1) ... [2020-07-07 14:26:35,354 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 14:26:35,447 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 14:26:36,186 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 14:26:36,204 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 14:26:36,491 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 14:26:36,543 INFO L208 MainTranslator]: Completed translation [2020-07-07 14:26:36,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:26:36 WrapperNode [2020-07-07 14:26:36,544 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 14:26:36,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 14:26:36,546 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 14:26:36,546 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 14:26:36,564 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:26:36" (1/1) ... [2020-07-07 14:26:36,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:26:36" (1/1) ... [2020-07-07 14:26:36,618 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:26:36" (1/1) ... [2020-07-07 14:26:36,620 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:26:36" (1/1) ... [2020-07-07 14:26:36,647 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:26:36" (1/1) ... [2020-07-07 14:26:36,655 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:26:36" (1/1) ... [2020-07-07 14:26:36,660 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:26:36" (1/1) ... [2020-07-07 14:26:36,668 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 14:26:36,668 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 14:26:36,669 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 14:26:36,669 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 14:26:36,670 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:26:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 14:26:36,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 14:26:36,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 14:26:36,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-07-07 14:26:36,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-07-07 14:26:36,769 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_sock [2020-07-07 14:26:36,769 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_sk [2020-07-07 14:26:36,769 INFO L138 BoogieDeclarations]: Found implementation of procedure register_pppox_proto [2020-07-07 14:26:36,770 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pppox_proto [2020-07-07 14:26:36,770 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_unbind_sock [2020-07-07 14:26:36,770 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_ioctl [2020-07-07 14:26:36,771 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_create [2020-07-07 14:26:36,771 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_init [2020-07-07 14:26:36,771 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_exit [2020-07-07 14:26:36,771 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 14:26:36,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2020-07-07 14:26:36,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2020-07-07 14:26:36,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2020-07-07 14:26:36,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2020-07-07 14:26:36,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2020-07-07 14:26:36,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2020-07-07 14:26:36,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-07-07 14:26:36,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_1 [2020-07-07 14:26:36,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_2 [2020-07-07 14:26:36,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_module [2020-07-07 14:26:36,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-07-07 14:26:36,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_int [2020-07-07 14:26:36,778 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_sock_nested [2020-07-07 14:26:36,778 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2020-07-07 14:26:36,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_index [2020-07-07 14:26:36,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unregister_channel [2020-07-07 14:26:36,779 INFO L138 BoogieDeclarations]: Found implementation of procedure release_sock [2020-07-07 14:26:36,779 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_register [2020-07-07 14:26:36,779 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_unregister [2020-07-07 14:26:36,779 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-07-07 14:26:36,780 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 14:26:36,781 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2020-07-07 14:26:36,781 INFO L130 BoogieDeclarations]: Found specification of procedure __request_module [2020-07-07 14:26:36,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_1 [2020-07-07 14:26:36,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_2 [2020-07-07 14:26:36,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2020-07-07 14:26:36,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2020-07-07 14:26:36,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2020-07-07 14:26:36,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2020-07-07 14:26:36,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2020-07-07 14:26:36,783 INFO L130 BoogieDeclarations]: Found specification of procedure sock_register [2020-07-07 14:26:36,783 INFO L130 BoogieDeclarations]: Found specification of procedure sock_unregister [2020-07-07 14:26:36,783 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_channel [2020-07-07 14:26:36,784 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_index [2020-07-07 14:26:36,784 INFO L130 BoogieDeclarations]: Found specification of procedure lock_sock_nested [2020-07-07 14:26:36,784 INFO L130 BoogieDeclarations]: Found specification of procedure lock_sock [2020-07-07 14:26:36,784 INFO L130 BoogieDeclarations]: Found specification of procedure release_sock [2020-07-07 14:26:36,784 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_sk [2020-07-07 14:26:36,785 INFO L130 BoogieDeclarations]: Found specification of procedure register_pppox_proto [2020-07-07 14:26:36,785 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pppox_proto [2020-07-07 14:26:36,785 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_unbind_sock [2020-07-07 14:26:36,785 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_ioctl [2020-07-07 14:26:36,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 14:26:36,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 14:26:36,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 14:26:36,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 14:26:36,789 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-07-07 14:26:36,789 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_create [2020-07-07 14:26:36,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 14:26:36,790 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-07-07 14:26:36,790 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_init [2020-07-07 14:26:36,790 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_exit [2020-07-07 14:26:36,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-07-07 14:26:36,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-07-07 14:26:36,791 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 14:26:36,791 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 14:26:36,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2020-07-07 14:26:36,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_int [2020-07-07 14:26:36,792 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 14:26:36,792 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-07-07 14:26:36,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 14:26:36,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 14:26:36,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-07-07 14:26:36,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-07 14:26:36,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 14:26:37,302 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-07 14:26:37,468 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2020-07-07 14:26:37,468 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2020-07-07 14:26:37,469 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-07-07 14:26:37,469 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-07-07 14:26:37,470 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-07 14:26:37,520 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2020-07-07 14:26:37,520 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2020-07-07 14:26:37,618 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2020-07-07 14:26:37,759 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 14:26:37,759 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-07 14:26:37,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 02:26:37 BoogieIcfgContainer [2020-07-07 14:26:37,764 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 14:26:37,765 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 14:26:37,765 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 14:26:37,768 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 14:26:37,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 02:26:35" (1/3) ... [2020-07-07 14:26:37,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@778ce64c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 02:26:37, skipping insertion in model container [2020-07-07 14:26:37,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:26:36" (2/3) ... [2020-07-07 14:26:37,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@778ce64c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 02:26:37, skipping insertion in model container [2020-07-07 14:26:37,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 02:26:37" (3/3) ... [2020-07-07 14:26:37,773 INFO L109 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-net-pppox.ko.cil.out.i [2020-07-07 14:26:37,784 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 14:26:37,792 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 14:26:37,807 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 14:26:37,829 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 14:26:37,829 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 14:26:37,829 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 14:26:37,830 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 14:26:37,830 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 14:26:37,830 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 14:26:37,830 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 14:26:37,830 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 14:26:37,848 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states. [2020-07-07 14:26:37,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-07 14:26:37,860 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 14:26:37,861 INFO L422 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] [2020-07-07 14:26:37,862 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 14:26:37,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 14:26:37,869 INFO L82 PathProgramCache]: Analyzing trace with hash -1095303050, now seen corresponding path program 1 times [2020-07-07 14:26:37,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 14:26:37,878 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1691462810] [2020-07-07 14:26:37,878 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 14:26:38,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:26:38,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:26:38,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:26:38,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:26:38,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:26:38,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 14:26:38,405 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 14:26:38,407 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1691462810] [2020-07-07 14:26:38,409 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 14:26:38,410 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 14:26:38,411 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296121371] [2020-07-07 14:26:38,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 14:26:38,418 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 14:26:38,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 14:26:38,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 14:26:38,436 INFO L87 Difference]: Start difference. First operand 169 states. Second operand 4 states. [2020-07-07 14:26:39,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 14:26:39,317 INFO L93 Difference]: Finished difference Result 426 states and 482 transitions. [2020-07-07 14:26:39,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 14:26:39,319 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-07-07 14:26:39,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 14:26:39,336 INFO L225 Difference]: With dead ends: 426 [2020-07-07 14:26:39,336 INFO L226 Difference]: Without dead ends: 291 [2020-07-07 14:26:39,341 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-07 14:26:39,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2020-07-07 14:26:39,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 287. [2020-07-07 14:26:39,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 287 states. [2020-07-07 14:26:39,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 313 transitions. [2020-07-07 14:26:39,452 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 313 transitions. Word has length 53 [2020-07-07 14:26:39,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 14:26:39,453 INFO L479 AbstractCegarLoop]: Abstraction has 287 states and 313 transitions. [2020-07-07 14:26:39,453 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 14:26:39,454 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 313 transitions. [2020-07-07 14:26:39,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-07-07 14:26:39,460 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 14:26:39,460 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 14:26:39,461 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 14:26:39,461 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 14:26:39,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 14:26:39,461 INFO L82 PathProgramCache]: Analyzing trace with hash 173654324, now seen corresponding path program 1 times [2020-07-07 14:26:39,462 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 14:26:39,462 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [671722835] [2020-07-07 14:26:39,462 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 14:26:39,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:26:39,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:26:39,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:26:39,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:26:39,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:26:39,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:26:39,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:26:39,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:26:39,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 14:26:39,876 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 14:26:39,876 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [671722835] [2020-07-07 14:26:39,876 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 14:26:39,877 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-07 14:26:39,877 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994771638] [2020-07-07 14:26:39,878 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-07 14:26:39,878 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 14:26:39,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-07 14:26:39,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-07-07 14:26:39,879 INFO L87 Difference]: Start difference. First operand 287 states and 313 transitions. Second operand 10 states. [2020-07-07 14:26:41,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 14:26:41,261 INFO L93 Difference]: Finished difference Result 495 states and 547 transitions. [2020-07-07 14:26:41,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-07 14:26:41,262 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 120 [2020-07-07 14:26:41,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 14:26:41,265 INFO L225 Difference]: With dead ends: 495 [2020-07-07 14:26:41,265 INFO L226 Difference]: Without dead ends: 257 [2020-07-07 14:26:41,269 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2020-07-07 14:26:41,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-07-07 14:26:41,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 244. [2020-07-07 14:26:41,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-07-07 14:26:41,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 264 transitions. [2020-07-07 14:26:41,352 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 264 transitions. Word has length 120 [2020-07-07 14:26:41,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 14:26:41,356 INFO L479 AbstractCegarLoop]: Abstraction has 244 states and 264 transitions. [2020-07-07 14:26:41,356 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-07 14:26:41,356 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 264 transitions. [2020-07-07 14:26:41,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-07 14:26:41,368 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 14:26:41,369 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 14:26:41,369 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 14:26:41,369 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 14:26:41,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 14:26:41,370 INFO L82 PathProgramCache]: Analyzing trace with hash -1108936363, now seen corresponding path program 1 times [2020-07-07 14:26:41,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 14:26:41,370 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [416913666] [2020-07-07 14:26:41,371 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 14:26:41,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:26:41,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:26:41,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:26:41,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:26:41,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:26:41,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:26:41,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:26:41,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:26:41,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:26:41,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:26:41,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:26:41,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 14:26:41,825 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 14:26:41,825 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [416913666] [2020-07-07 14:26:41,826 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 14:26:41,826 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-07 14:26:41,826 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996572911] [2020-07-07 14:26:41,828 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-07 14:26:41,829 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 14:26:41,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-07 14:26:41,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-07-07 14:26:41,830 INFO L87 Difference]: Start difference. First operand 244 states and 264 transitions. Second operand 10 states. [2020-07-07 14:26:42,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 14:26:42,732 INFO L93 Difference]: Finished difference Result 375 states and 407 transitions. [2020-07-07 14:26:42,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-07 14:26:42,733 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 129 [2020-07-07 14:26:42,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 14:26:42,739 INFO L225 Difference]: With dead ends: 375 [2020-07-07 14:26:42,739 INFO L226 Difference]: Without dead ends: 248 [2020-07-07 14:26:42,743 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2020-07-07 14:26:42,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2020-07-07 14:26:42,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 244. [2020-07-07 14:26:42,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-07-07 14:26:42,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 263 transitions. [2020-07-07 14:26:42,787 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 263 transitions. Word has length 129 [2020-07-07 14:26:42,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 14:26:42,788 INFO L479 AbstractCegarLoop]: Abstraction has 244 states and 263 transitions. [2020-07-07 14:26:42,788 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-07 14:26:42,788 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 263 transitions. [2020-07-07 14:26:42,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-07-07 14:26:42,791 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 14:26:42,791 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 14:26:42,792 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 14:26:42,793 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 14:26:42,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 14:26:42,793 INFO L82 PathProgramCache]: Analyzing trace with hash -268445373, now seen corresponding path program 1 times [2020-07-07 14:26:42,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 14:26:42,794 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1623339659] [2020-07-07 14:26:42,794 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 14:26:42,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:26:42,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:26:42,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:26:43,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:26:43,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:26:43,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:26:43,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:26:43,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:26:43,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:26:43,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 14:26:43,138 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 14:26:43,139 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1623339659] [2020-07-07 14:26:43,139 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 14:26:43,139 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-07 14:26:43,140 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814511070] [2020-07-07 14:26:43,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-07 14:26:43,143 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 14:26:43,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-07 14:26:43,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-07 14:26:43,149 INFO L87 Difference]: Start difference. First operand 244 states and 263 transitions. Second operand 7 states. [2020-07-07 14:26:44,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 14:26:44,192 INFO L93 Difference]: Finished difference Result 382 states and 413 transitions. [2020-07-07 14:26:44,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-07 14:26:44,193 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 131 [2020-07-07 14:26:44,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 14:26:44,196 INFO L225 Difference]: With dead ends: 382 [2020-07-07 14:26:44,196 INFO L226 Difference]: Without dead ends: 379 [2020-07-07 14:26:44,197 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-07-07 14:26:44,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2020-07-07 14:26:44,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 363. [2020-07-07 14:26:44,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2020-07-07 14:26:44,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 395 transitions. [2020-07-07 14:26:44,238 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 395 transitions. Word has length 131 [2020-07-07 14:26:44,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 14:26:44,239 INFO L479 AbstractCegarLoop]: Abstraction has 363 states and 395 transitions. [2020-07-07 14:26:44,239 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-07 14:26:44,239 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 395 transitions. [2020-07-07 14:26:44,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-07 14:26:44,241 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 14:26:44,241 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 14:26:44,241 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 14:26:44,242 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 14:26:44,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 14:26:44,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1178345674, now seen corresponding path program 1 times [2020-07-07 14:26:44,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 14:26:44,243 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [588927738] [2020-07-07 14:26:44,243 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 14:26:44,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:26:44,433 ERROR L253 erpolLogProxyWrapper]: Interpolant 35 not inductive [2020-07-07 14:26:44,436 ERROR L276 FreeRefinementEngine]: Caught unknown exception: generated interpolants did not pass sanity check [2020-07-07 14:26:44,436 WARN L341 FreeRefinementEngine]: Global settings require throwing the following exception [2020-07-07 14:26:44,437 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 14:26:44,437 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: generated interpolants did not pass sanity check at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:222) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:884) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:385) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:332) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:332) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:166) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:337) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:239) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:108) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.Interpolator.generateInterpolantsCraigNested(Interpolator.java:146) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.Interpolator.generateInterpolants(Interpolator.java:102) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.acceleratedInterpolationCore(AcceleratedInterpolation.java:266) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:184) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:144) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-07 14:26:44,446 INFO L168 Benchmark]: Toolchain (without parser) took 9109.54 ms. Allocated memory was 143.1 MB in the beginning and 346.0 MB in the end (delta: 202.9 MB). Free memory was 95.7 MB in the beginning and 104.0 MB in the end (delta: -8.3 MB). Peak memory consumption was 194.6 MB. Max. memory is 7.1 GB. [2020-07-07 14:26:44,449 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 143.1 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 14:26:44,450 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1208.41 ms. Allocated memory was 143.1 MB in the beginning and 208.1 MB in the end (delta: 65.0 MB). Free memory was 95.5 MB in the beginning and 129.2 MB in the end (delta: -33.7 MB). Peak memory consumption was 39.5 MB. Max. memory is 7.1 GB. [2020-07-07 14:26:44,452 INFO L168 Benchmark]: Boogie Preprocessor took 122.35 ms. Allocated memory is still 208.1 MB. Free memory was 129.2 MB in the beginning and 126.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2020-07-07 14:26:44,458 INFO L168 Benchmark]: RCFGBuilder took 1095.77 ms. Allocated memory was 208.1 MB in the beginning and 239.1 MB in the end (delta: 30.9 MB). Free memory was 125.4 MB in the beginning and 166.2 MB in the end (delta: -40.8 MB). Peak memory consumption was 51.7 MB. Max. memory is 7.1 GB. [2020-07-07 14:26:44,459 INFO L168 Benchmark]: TraceAbstraction took 6677.83 ms. Allocated memory was 239.1 MB in the beginning and 346.0 MB in the end (delta: 107.0 MB). Free memory was 166.2 MB in the beginning and 104.0 MB in the end (delta: 62.2 MB). Peak memory consumption was 169.2 MB. Max. memory is 7.1 GB. [2020-07-07 14:26:44,472 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 143.1 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1208.41 ms. Allocated memory was 143.1 MB in the beginning and 208.1 MB in the end (delta: 65.0 MB). Free memory was 95.5 MB in the beginning and 129.2 MB in the end (delta: -33.7 MB). Peak memory consumption was 39.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 122.35 ms. Allocated memory is still 208.1 MB. Free memory was 129.2 MB in the beginning and 126.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1095.77 ms. Allocated memory was 208.1 MB in the beginning and 239.1 MB in the end (delta: 30.9 MB). Free memory was 125.4 MB in the beginning and 166.2 MB in the end (delta: -40.8 MB). Peak memory consumption was 51.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6677.83 ms. Allocated memory was 239.1 MB in the beginning and 346.0 MB in the end (delta: 107.0 MB). Free memory was 166.2 MB in the beginning and 104.0 MB in the end (delta: 62.2 MB). Peak memory consumption was 169.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: generated interpolants did not pass sanity check de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: generated interpolants did not pass sanity check: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:222) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...