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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/float-benchs/mea8000.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 01:35:54,555 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 01:35:54,558 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 01:35:54,573 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 01:35:54,573 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 01:35:54,575 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 01:35:54,577 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 01:35:54,583 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 01:35:54,584 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 01:35:54,588 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 01:35:54,591 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 01:35:54,592 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 01:35:54,592 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 01:35:54,595 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 01:35:54,596 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 01:35:54,597 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 01:35:54,599 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 01:35:54,603 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 01:35:54,605 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 01:35:54,609 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 01:35:54,611 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 01:35:54,613 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 01:35:54,614 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 01:35:54,616 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 01:35:54,618 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 01:35:54,618 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 01:35:54,618 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 01:35:54,619 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 01:35:54,619 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 01:35:54,620 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 01:35:54,621 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 01:35:54,621 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 01:35:54,622 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 01:35:54,623 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 01:35:54,624 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 01:35:54,624 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 01:35:54,624 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 01:35:54,625 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 01:35:54,625 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 01:35:54,626 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 01:35:54,626 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 01:35:54,627 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 01:35:54,647 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 01:35:54,647 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 01:35:54,647 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 01:35:54,648 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 01:35:54,649 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 01:35:54,649 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 01:35:54,649 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 01:35:54,650 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 01:35:54,650 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 01:35:54,650 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 01:35:54,651 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 01:35:54,651 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 01:35:54,651 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 01:35:54,651 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 01:35:54,651 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 01:35:54,652 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 01:35:54,652 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 01:35:54,652 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 01:35:54,653 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 01:35:54,653 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 01:35:54,654 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 01:35:54,654 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 01:35:54,654 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 01:35:54,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:35:54,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 01:35:54,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 01:35:54,655 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 01:35:54,655 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 01:35:54,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 01:35:54,656 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 01:35:54,706 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 01:35:54,719 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 01:35:54,723 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 01:35:54,724 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 01:35:54,725 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 01:35:54,726 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/mea8000.c [2019-09-10 01:35:54,786 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63772f2a7/71bddc27fdc1483bbcdafb19659788bf/FLAG0b915e15e [2019-09-10 01:35:55,286 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 01:35:55,289 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/mea8000.c [2019-09-10 01:35:55,307 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63772f2a7/71bddc27fdc1483bbcdafb19659788bf/FLAG0b915e15e [2019-09-10 01:35:55,608 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63772f2a7/71bddc27fdc1483bbcdafb19659788bf [2019-09-10 01:35:55,617 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 01:35:55,618 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 01:35:55,619 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 01:35:55,620 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 01:35:55,623 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 01:35:55,624 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:35:55" (1/1) ... [2019-09-10 01:35:55,627 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17c39781 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:35:55, skipping insertion in model container [2019-09-10 01:35:55,627 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:35:55" (1/1) ... [2019-09-10 01:35:55,633 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 01:35:55,669 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 01:35:56,056 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:35:56,327 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 01:35:56,405 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:35:56,819 INFO L192 MainTranslator]: Completed translation [2019-09-10 01:35:56,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:35:56 WrapperNode [2019-09-10 01:35:56,820 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 01:35:56,821 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 01:35:56,821 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 01:35:56,821 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 01:35:56,835 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:35:56" (1/1) ... [2019-09-10 01:35:56,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:35:56" (1/1) ... [2019-09-10 01:35:57,001 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:35:56" (1/1) ... [2019-09-10 01:35:57,001 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:35:56" (1/1) ... [2019-09-10 01:35:57,408 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:35:56" (1/1) ... [2019-09-10 01:35:57,483 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:35:56" (1/1) ... [2019-09-10 01:35:57,587 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:35:56" (1/1) ... [2019-09-10 01:35:57,697 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 01:35:57,697 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 01:35:57,698 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 01:35:57,698 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 01:35:57,699 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:35:56" (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 [2019-09-10 01:35:57,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 01:35:57,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 01:35:57,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-10 01:35:57,768 INFO L138 BoogieDeclarations]: Found implementation of procedure cos [2019-09-10 01:35:57,769 INFO L138 BoogieDeclarations]: Found implementation of procedure exp [2019-09-10 01:35:57,769 INFO L138 BoogieDeclarations]: Found implementation of procedure rand [2019-09-10 01:35:57,769 INFO L138 BoogieDeclarations]: Found implementation of procedure write_signed16 [2019-09-10 01:35:57,769 INFO L138 BoogieDeclarations]: Found implementation of procedure device_start [2019-09-10 01:35:57,769 INFO L138 BoogieDeclarations]: Found implementation of procedure device_reset [2019-09-10 01:35:57,770 INFO L138 BoogieDeclarations]: Found implementation of procedure accept_byte [2019-09-10 01:35:57,770 INFO L138 BoogieDeclarations]: Found implementation of procedure update_req [2019-09-10 01:35:57,771 INFO L138 BoogieDeclarations]: Found implementation of procedure init_tables [2019-09-10 01:35:57,771 INFO L138 BoogieDeclarations]: Found implementation of procedure interp [2019-09-10 01:35:57,772 INFO L138 BoogieDeclarations]: Found implementation of procedure filter_step [2019-09-10 01:35:57,772 INFO L138 BoogieDeclarations]: Found implementation of procedure noise_gen [2019-09-10 01:35:57,773 INFO L138 BoogieDeclarations]: Found implementation of procedure freq_gen [2019-09-10 01:35:57,773 INFO L138 BoogieDeclarations]: Found implementation of procedure compute_sample [2019-09-10 01:35:57,773 INFO L138 BoogieDeclarations]: Found implementation of procedure shift_frame [2019-09-10 01:35:57,773 INFO L138 BoogieDeclarations]: Found implementation of procedure decode_frame [2019-09-10 01:35:57,773 INFO L138 BoogieDeclarations]: Found implementation of procedure start_frame [2019-09-10 01:35:57,773 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_frame [2019-09-10 01:35:57,774 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_expire [2019-09-10 01:35:57,774 INFO L138 BoogieDeclarations]: Found implementation of procedure read [2019-09-10 01:35:57,774 INFO L138 BoogieDeclarations]: Found implementation of procedure write [2019-09-10 01:35:57,775 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 01:35:57,775 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 01:35:57,775 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 01:35:57,775 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_unsigned_char [2019-09-10 01:35:57,776 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2019-09-10 01:35:57,776 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-10 01:35:57,776 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-10 01:35:57,776 INFO L130 BoogieDeclarations]: Found specification of procedure cos [2019-09-10 01:35:57,776 INFO L130 BoogieDeclarations]: Found specification of procedure exp [2019-09-10 01:35:57,777 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-09-10 01:35:57,777 INFO L130 BoogieDeclarations]: Found specification of procedure write_signed16 [2019-09-10 01:35:57,777 INFO L130 BoogieDeclarations]: Found specification of procedure device_start [2019-09-10 01:35:57,777 INFO L130 BoogieDeclarations]: Found specification of procedure device_reset [2019-09-10 01:35:57,777 INFO L130 BoogieDeclarations]: Found specification of procedure accept_byte [2019-09-10 01:35:57,777 INFO L130 BoogieDeclarations]: Found specification of procedure update_req [2019-09-10 01:35:57,777 INFO L130 BoogieDeclarations]: Found specification of procedure init_tables [2019-09-10 01:35:57,778 INFO L130 BoogieDeclarations]: Found specification of procedure interp [2019-09-10 01:35:57,778 INFO L130 BoogieDeclarations]: Found specification of procedure filter_step [2019-09-10 01:35:57,778 INFO L130 BoogieDeclarations]: Found specification of procedure noise_gen [2019-09-10 01:35:57,778 INFO L130 BoogieDeclarations]: Found specification of procedure freq_gen [2019-09-10 01:35:57,778 INFO L130 BoogieDeclarations]: Found specification of procedure compute_sample [2019-09-10 01:35:57,778 INFO L130 BoogieDeclarations]: Found specification of procedure shift_frame [2019-09-10 01:35:57,779 INFO L130 BoogieDeclarations]: Found specification of procedure decode_frame [2019-09-10 01:35:57,779 INFO L130 BoogieDeclarations]: Found specification of procedure start_frame [2019-09-10 01:35:57,779 INFO L130 BoogieDeclarations]: Found specification of procedure stop_frame [2019-09-10 01:35:57,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-09-10 01:35:57,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 01:35:57,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-09-10 01:35:57,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 01:35:57,780 INFO L130 BoogieDeclarations]: Found specification of procedure timer_expire [2019-09-10 01:35:57,780 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-09-10 01:35:57,780 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-09-10 01:35:57,780 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 01:35:57,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 01:35:57,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 01:35:57,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 01:35:57,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-09-10 01:35:57,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 01:35:57,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 01:39:59,229 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 01:39:59,230 INFO L283 CfgBuilder]: Removed 6 assume(true) statements. [2019-09-10 01:39:59,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:39:59 BoogieIcfgContainer [2019-09-10 01:39:59,231 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 01:39:59,232 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 01:39:59,232 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 01:39:59,235 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 01:39:59,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 01:35:55" (1/3) ... [2019-09-10 01:39:59,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d26f6ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:39:59, skipping insertion in model container [2019-09-10 01:39:59,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:35:56" (2/3) ... [2019-09-10 01:39:59,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d26f6ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:39:59, skipping insertion in model container [2019-09-10 01:39:59,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:39:59" (3/3) ... [2019-09-10 01:39:59,239 INFO L109 eAbstractionObserver]: Analyzing ICFG mea8000.c [2019-09-10 01:39:59,248 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 01:39:59,256 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 01:39:59,272 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 01:39:59,298 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 01:39:59,298 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 01:39:59,298 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 01:39:59,298 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 01:39:59,298 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 01:39:59,298 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 01:39:59,299 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 01:39:59,299 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 01:39:59,317 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states. [2019-09-10 01:39:59,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-09-10 01:39:59,329 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:39:59,330 INFO L399 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] [2019-09-10 01:39:59,332 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:39:59,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:39:59,338 INFO L82 PathProgramCache]: Analyzing trace with hash -1910100017, now seen corresponding path program 1 times [2019-09-10 01:39:59,340 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:39:59,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:39:59,397 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:39:59,398 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:39:59,398 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:40:01,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:40:03,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:40:03,206 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:40:03,206 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 01:40:03,206 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:40:03,212 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 01:40:03,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 01:40:03,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 01:40:03,229 INFO L87 Difference]: Start difference. First operand 186 states. Second operand 3 states. [2019-09-10 01:40:03,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:40:03,310 INFO L93 Difference]: Finished difference Result 189 states and 240 transitions. [2019-09-10 01:40:03,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 01:40:03,312 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2019-09-10 01:40:03,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:40:03,327 INFO L225 Difference]: With dead ends: 189 [2019-09-10 01:40:03,327 INFO L226 Difference]: Without dead ends: 189 [2019-09-10 01:40:03,329 INFO L628 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 [2019-09-10 01:40:03,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2019-09-10 01:40:03,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 182. [2019-09-10 01:40:03,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2019-09-10 01:40:03,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 230 transitions. [2019-09-10 01:40:03,392 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 230 transitions. Word has length 29 [2019-09-10 01:40:03,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:40:03,393 INFO L475 AbstractCegarLoop]: Abstraction has 182 states and 230 transitions. [2019-09-10 01:40:03,393 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 01:40:03,393 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 230 transitions. [2019-09-10 01:40:03,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-09-10 01:40:03,399 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:40:03,399 INFO L399 BasicCegarLoop]: trace histogram [2, 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] [2019-09-10 01:40:03,400 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:40:03,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:40:03,401 INFO L82 PathProgramCache]: Analyzing trace with hash -2015968569, now seen corresponding path program 1 times [2019-09-10 01:40:03,401 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:40:03,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:40:03,404 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:40:03,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:40:03,405 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:40:05,735 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-10 01:40:05,735 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-10 01:40:05,736 INFO L170 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-09-10 01:40:05,761 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:40:05,761 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2019-09-10 01:40:06,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:40:06,657 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 51 with the following transitions: [2019-09-10 01:40:06,659 INFO L207 CegarAbsIntRunner]: [0], [3], [4], [25], [32], [39], [42], [45], [112], [115], [119], [120], [196], [218], [224], [226], [228], [230], [232], [234], [238], [244], [254], [257], [265], [323], [324], [333], [336], [338], [348], [358], [359], [364], [390], [391], [396], [397], [398], [399], [400], [401], [408], [426], [427], [428] [2019-09-10 01:40:06,784 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 01:40:06,784 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 01:40:06,857 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 01:40:06,858 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 52 root evaluator evaluations with a maximum evaluation depth of 0. Performed 52 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 94 variables. [2019-09-10 01:40:06,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:40:06,862 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 01:40:06,953 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 01:40:06,953 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 01:40:06,957 INFO L420 sIntCurrentIteration]: We unified 49 AI predicates to 49 [2019-09-10 01:40:06,957 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 01:40:06,958 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:40:06,958 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 01:40:06,958 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:40:06,960 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 01:40:06,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 01:40:06,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 01:40:06,960 INFO L87 Difference]: Start difference. First operand 182 states and 230 transitions. Second operand 2 states. [2019-09-10 01:40:06,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:40:06,961 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 01:40:06,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 01:40:06,961 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 50 [2019-09-10 01:40:06,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:40:06,962 INFO L225 Difference]: With dead ends: 2 [2019-09-10 01:40:06,962 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 01:40:06,962 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 01:40:06,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 01:40:06,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 01:40:06,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 01:40:06,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 01:40:06,963 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50 [2019-09-10 01:40:06,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:40:06,964 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 01:40:06,964 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 01:40:06,964 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 01:40:06,964 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 01:40:06,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 01:40:06 BoogieIcfgContainer [2019-09-10 01:40:06,969 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 01:40:06,973 INFO L168 Benchmark]: Toolchain (without parser) took 251352.94 ms. Allocated memory was 140.0 MB in the beginning and 2.9 GB in the end (delta: 2.7 GB). Free memory was 86.0 MB in the beginning and 2.4 GB in the end (delta: -2.3 GB). Peak memory consumption was 463.7 MB. Max. memory is 7.1 GB. [2019-09-10 01:40:06,974 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.0 MB. Free memory was 106.1 MB in the beginning and 105.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 01:40:06,975 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1201.13 ms. Allocated memory was 140.0 MB in the beginning and 224.4 MB in the end (delta: 84.4 MB). Free memory was 85.8 MB in the beginning and 106.5 MB in the end (delta: -20.7 MB). Peak memory consumption was 97.1 MB. Max. memory is 7.1 GB. [2019-09-10 01:40:06,977 INFO L168 Benchmark]: Boogie Preprocessor took 876.17 ms. Allocated memory was 224.4 MB in the beginning and 269.0 MB in the end (delta: 44.6 MB). Free memory was 106.5 MB in the beginning and 144.2 MB in the end (delta: -37.7 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. [2019-09-10 01:40:06,979 INFO L168 Benchmark]: RCFGBuilder took 241534.00 ms. Allocated memory was 269.0 MB in the beginning and 2.8 GB in the end (delta: 2.5 GB). Free memory was 144.2 MB in the beginning and 657.9 MB in the end (delta: -513.8 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2019-09-10 01:40:06,980 INFO L168 Benchmark]: TraceAbstraction took 7737.42 ms. Allocated memory was 2.8 GB in the beginning and 2.9 GB in the end (delta: 67.1 MB). Free memory was 657.9 MB in the beginning and 2.4 GB in the end (delta: -1.7 GB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-10 01:40:06,990 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 140.0 MB. Free memory was 106.1 MB in the beginning and 105.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1201.13 ms. Allocated memory was 140.0 MB in the beginning and 224.4 MB in the end (delta: 84.4 MB). Free memory was 85.8 MB in the beginning and 106.5 MB in the end (delta: -20.7 MB). Peak memory consumption was 97.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 876.17 ms. Allocated memory was 224.4 MB in the beginning and 269.0 MB in the end (delta: 44.6 MB). Free memory was 106.5 MB in the beginning and 144.2 MB in the end (delta: -37.7 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 241534.00 ms. Allocated memory was 269.0 MB in the beginning and 2.8 GB in the end (delta: 2.5 GB). Free memory was 144.2 MB in the beginning and 657.9 MB in the end (delta: -513.8 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. * TraceAbstraction took 7737.42 ms. Allocated memory was 2.8 GB in the beginning and 2.9 GB in the end (delta: 67.1 MB). Free memory was 657.9 MB in the beginning and 2.4 GB in the end (delta: -1.7 GB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 10]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 25 procedures, 186 locations, 1 error locations. SAFE Result, 7.6s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 228 SDtfs, 4 SDslu, 222 SDs, 0 SdLazy, 11 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=186occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 1.3265306122448979 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 840 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...