java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/SifaC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --sifa.abstract.domain ExplicitValueDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid NeverFluid --sifa.intern.fluid NeverFluid --sifa.simplification.technique SIMPLIFY_DDA -i ../../../trunk/examples/svcomp/systemc/pc_sfifo_2.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-20 00:26:22,496 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 00:26:22,498 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 00:26:22,509 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 00:26:22,510 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 00:26:22,511 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 00:26:22,512 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 00:26:22,514 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 00:26:22,516 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 00:26:22,516 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 00:26:22,517 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 00:26:22,519 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 00:26:22,519 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 00:26:22,520 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 00:26:22,521 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 00:26:22,522 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 00:26:22,523 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 00:26:22,524 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 00:26:22,526 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 00:26:22,528 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 00:26:22,529 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 00:26:22,531 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 00:26:22,535 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 00:26:22,536 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 00:26:22,539 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-20 00:26:22,557 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 00:26:22,558 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 00:26:22,560 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 00:26:22,561 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-20 00:26:22,576 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 00:26:22,576 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 00:26:22,577 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 00:26:22,578 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 00:26:22,578 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 00:26:22,578 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 00:26:22,578 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 00:26:22,578 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 00:26:22,579 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 00:26:22,579 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 00:26:22,579 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 00:26:22,579 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 00:26:22,579 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 00:26:22,580 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 00:26:22,580 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 00:26:22,580 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 00:26:22,580 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 00:26:22,580 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 00:26:22,581 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 00:26:22,581 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 00:26:22,581 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 00:26:22,581 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 00:26:22,582 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 00:26:22,582 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 00:26:22,582 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 00:26:22,582 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 00:26:22,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 00:26:22,583 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 00:26:22,583 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> ExplicitValueDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> NeverFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Intern Fluid -> NeverFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_DDA [2019-09-20 00:26:22,614 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 00:26:22,626 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 00:26:22,629 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 00:26:22,631 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 00:26:22,631 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 00:26:22,632 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_2.cil-1.c [2019-09-20 00:26:22,690 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed1e02337/a57ff740054a47c592346599608930d7/FLAG08a7f1aa9 [2019-09-20 00:26:23,143 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 00:26:23,144 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_2.cil-1.c [2019-09-20 00:26:23,154 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed1e02337/a57ff740054a47c592346599608930d7/FLAG08a7f1aa9 [2019-09-20 00:26:23,526 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed1e02337/a57ff740054a47c592346599608930d7 [2019-09-20 00:26:23,535 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 00:26:23,536 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 00:26:23,537 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 00:26:23,538 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 00:26:23,541 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 00:26:23,542 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 12:26:23" (1/1) ... [2019-09-20 00:26:23,545 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6df957dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:26:23, skipping insertion in model container [2019-09-20 00:26:23,545 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 12:26:23" (1/1) ... [2019-09-20 00:26:23,551 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 00:26:23,594 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 00:26:23,814 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 00:26:23,820 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 00:26:23,953 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 00:26:23,973 INFO L192 MainTranslator]: Completed translation [2019-09-20 00:26:23,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:26:23 WrapperNode [2019-09-20 00:26:23,974 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 00:26:23,975 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 00:26:23,975 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 00:26:23,975 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 00:26:23,990 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:26:23" (1/1) ... [2019-09-20 00:26:23,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:26:23" (1/1) ... [2019-09-20 00:26:23,997 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:26:23" (1/1) ... [2019-09-20 00:26:23,998 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:26:23" (1/1) ... [2019-09-20 00:26:24,009 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:26:23" (1/1) ... [2019-09-20 00:26:24,018 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:26:23" (1/1) ... [2019-09-20 00:26:24,021 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:26:23" (1/1) ... [2019-09-20 00:26:24,024 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 00:26:24,024 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 00:26:24,024 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 00:26:24,025 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 00:26:24,026 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:26:23" (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 [2019-09-20 00:26:24,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 00:26:24,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 00:26:24,090 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2019-09-20 00:26:24,090 INFO L138 BoogieDeclarations]: Found implementation of procedure update_fifo_q [2019-09-20 00:26:24,090 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2019-09-20 00:26:24,091 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2019-09-20 00:26:24,091 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2019-09-20 00:26:24,092 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p [2019-09-20 00:26:24,092 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c [2019-09-20 00:26:24,092 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2019-09-20 00:26:24,093 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2019-09-20 00:26:24,093 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2019-09-20 00:26:24,093 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2019-09-20 00:26:24,093 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2019-09-20 00:26:24,093 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2019-09-20 00:26:24,094 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2019-09-20 00:26:24,094 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2019-09-20 00:26:24,094 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2019-09-20 00:26:24,094 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2019-09-20 00:26:24,094 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 00:26:24,094 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 00:26:24,095 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 00:26:24,095 INFO L130 BoogieDeclarations]: Found specification of procedure error [2019-09-20 00:26:24,095 INFO L130 BoogieDeclarations]: Found specification of procedure update_fifo_q [2019-09-20 00:26:24,095 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2019-09-20 00:26:24,095 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2019-09-20 00:26:24,095 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2019-09-20 00:26:24,096 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p [2019-09-20 00:26:24,096 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c [2019-09-20 00:26:24,096 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2019-09-20 00:26:24,096 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2019-09-20 00:26:24,096 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2019-09-20 00:26:24,096 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2019-09-20 00:26:24,097 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2019-09-20 00:26:24,097 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2019-09-20 00:26:24,097 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2019-09-20 00:26:24,097 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2019-09-20 00:26:24,097 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2019-09-20 00:26:24,098 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2019-09-20 00:26:24,098 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 00:26:24,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 00:26:24,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 00:26:24,793 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 00:26:24,793 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-20 00:26:24,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 12:26:24 BoogieIcfgContainer [2019-09-20 00:26:24,795 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 00:26:24,795 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-20 00:26:24,795 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-20 00:26:24,796 INFO L275 PluginConnector]: Sifa initialized [2019-09-20 00:26:24,797 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 12:26:24" (1/1) ... [2019-09-20 00:26:24,798 INFO L79 SifaObserver]: Intern domains=ExplicitValueDomain;IntervalDomain ♦ Abstract Domain=ExplicitValueDomain ♦ Abstract when formula's dag size exceeds (negative numbers disable this limit)=-1 ♦ Fluid=NeverFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ Abstract when formula has more disjuncts than (negative numbers disable this limit)=8 ♦ Call Summarizer=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ Simplification Technique=SIMPLIFY_DDA ♦ Intern Fluid=NeverFluid [2019-09-20 00:26:24,821 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-20 00:26:24,821 INFO L169 IcfgInterpreter]: Building call graph [2019-09-20 00:26:24,831 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-20 00:26:24,841 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-20 00:26:24,842 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-20 00:26:25,029 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 70 for LOIs [2019-09-20 00:26:25,107 INFO L199 IcfgInterpreter]: Interpreting procedure start_simulation with input of size 68 for LOIs [2019-09-20 00:26:25,682 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 35 [2019-09-20 00:26:28,752 WARN L191 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2019-09-20 00:26:29,202 WARN L191 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 78 [2019-09-20 00:26:29,400 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2019-09-20 00:26:29,407 INFO L199 IcfgInterpreter]: Interpreting procedure eval with input of size 66 for LOIs [2019-09-20 00:26:29,743 WARN L191 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2019-09-20 00:26:29,874 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2019-09-20 00:26:30,198 WARN L191 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2019-09-20 00:26:30,347 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2019-09-20 00:26:30,790 WARN L191 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 87 [2019-09-20 00:26:31,193 WARN L191 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 87 [2019-09-20 00:26:32,005 INFO L199 IcfgInterpreter]: Interpreting procedure do_read_c with input of size 24 for LOIs [2019-09-20 00:26:32,231 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 26 [2019-09-20 00:26:32,354 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2019-09-20 00:26:32,514 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2019-09-20 00:26:32,820 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2019-09-20 00:26:33,203 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2019-09-20 00:26:33,382 INFO L199 IcfgInterpreter]: Interpreting procedure error with input of size 18 for LOIs [2019-09-20 00:26:33,416 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-20 00:26:33,416 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-20 00:26:33,419 INFO L193 IcfgInterpreter]: Reachable states at location errorErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 683#(or (and (= 1 ~q_req_up~0) (not (= ~c_num_read~0 ~p_num_write~0)) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0)) (and (= 1 ~q_req_up~0) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0) (not (= ~c_last_read~0 ~p_last_write~0)))) [2019-09-20 00:26:33,430 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-20 00:26:33,430 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-20 00:26:33,432 INFO L168 Benchmark]: Toolchain (without parser) took 9895.41 ms. Allocated memory was 132.6 MB in the beginning and 353.9 MB in the end (delta: 221.2 MB). Free memory was 88.6 MB in the beginning and 138.1 MB in the end (delta: -49.5 MB). Peak memory consumption was 171.8 MB. Max. memory is 7.1 GB. [2019-09-20 00:26:33,433 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 132.6 MB. Free memory was 107.0 MB in the beginning and 106.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 00:26:33,434 INFO L168 Benchmark]: CACSL2BoogieTranslator took 436.90 ms. Allocated memory was 132.6 MB in the beginning and 199.8 MB in the end (delta: 67.1 MB). Free memory was 88.4 MB in the beginning and 175.3 MB in the end (delta: -86.9 MB). Peak memory consumption was 27.4 MB. Max. memory is 7.1 GB. [2019-09-20 00:26:33,434 INFO L168 Benchmark]: Boogie Preprocessor took 49.31 ms. Allocated memory is still 199.8 MB. Free memory was 175.3 MB in the beginning and 173.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-09-20 00:26:33,435 INFO L168 Benchmark]: RCFGBuilder took 770.55 ms. Allocated memory is still 199.8 MB. Free memory was 173.4 MB in the beginning and 124.5 MB in the end (delta: 48.9 MB). Peak memory consumption was 48.9 MB. Max. memory is 7.1 GB. [2019-09-20 00:26:33,436 INFO L168 Benchmark]: Sifa took 8634.95 ms. Allocated memory was 199.8 MB in the beginning and 353.9 MB in the end (delta: 154.1 MB). Free memory was 124.5 MB in the beginning and 138.1 MB in the end (delta: -13.6 MB). Peak memory consumption was 140.6 MB. Max. memory is 7.1 GB. [2019-09-20 00:26:33,440 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 132.6 MB. Free memory was 107.0 MB in the beginning and 106.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 436.90 ms. Allocated memory was 132.6 MB in the beginning and 199.8 MB in the end (delta: 67.1 MB). Free memory was 88.4 MB in the beginning and 175.3 MB in the end (delta: -86.9 MB). Peak memory consumption was 27.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 49.31 ms. Allocated memory is still 199.8 MB. Free memory was 175.3 MB in the beginning and 173.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 770.55 ms. Allocated memory is still 199.8 MB. Free memory was 173.4 MB in the beginning and 124.5 MB in the end (delta: 48.9 MB). Peak memory consumption was 48.9 MB. Max. memory is 7.1 GB. * Sifa took 8634.95 ms. Allocated memory was 199.8 MB in the beginning and 353.9 MB in the end (delta: 154.1 MB). Free memory was 124.5 MB in the beginning and 138.1 MB in the end (delta: -13.6 MB). Peak memory consumption was 140.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME[ms]: 8598, ICFG_INTERPRETER_ENTERED_PROCEDURES: 6, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 334, DAG_INTERPRETER_EARLY_EXITS: 2, TOOLS_POST_APPLICATIONS: 241, TOOLS_POST_TIME[ms]: 92, TOOLS_POST_CALL_APPLICATIONS: 67, TOOLS_POST_CALL_TIME[ms]: 183, TOOLS_POST_RETURN_APPLICATIONS: 61, TOOLS_POST_RETURN_TIME[ms]: 69, TOOLS_QUANTIFIERELIM_APPLICATIONS: 369, TOOLS_QUANTIFIERELIM_TIME[ms]: 245, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 16, FLUID_QUERY_TIME[ms]: 0, FLUID_QUERIES: 347, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 129, DOMAIN_JOIN_TIME[ms]: 7504, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 3, DOMAIN_WIDEN_TIME[ms]: 427, DOMAIN_ISSUBSETEQ_APPLICATIONS: 13, DOMAIN_ISSUBSETEQ_TIME[ms]: 14, DOMAIN_ISBOTTOM_APPLICATIONS: 85, DOMAIN_ISBOTTOM_TIME[ms]: 150, LOOP_SUMMARIZER_APPLICATIONS: 10, LOOP_SUMMARIZER_CACHE_MISSES: 10, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 5482, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 5481, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 13, CALL_SUMMARIZER_APPLICATIONS: 61, CALL_SUMMARIZER_CACHE_MISSES: 18, CALL_SUMMARIZER_OVERALL_TIME[ms]: 3518, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 3517, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 6, PATH_EXPR_TIME[ms]: 7, REGEX_TO_DAG_TIME[ms]: 9, DAG_COMPRESSION_TIME[ms]: 48, DAG_COMPRESSION_PROCESSED_NODES: 457, DAG_COMPRESSION_RETAINED_NODES: 209 - UnprovableResult [Line: 10]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: Over-approximation of reachable states at this location is 683#(or (and (= 1 ~q_req_up~0) (not (= ~c_num_read~0 ~p_num_write~0)) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0)) (and (= 1 ~q_req_up~0) (= 1 ~q_free~0) (= ~c_last_read~0 ~q_buf_0~0) (not (= ~c_last_read~0 ~p_last_write~0)))). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...