/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 12:25:04,782 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 12:25:04,785 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 12:25:04,796 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 12:25:04,797 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 12:25:04,798 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 12:25:04,799 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 12:25:04,801 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 12:25:04,802 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 12:25:04,803 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 12:25:04,804 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 12:25:04,805 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 12:25:04,805 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 12:25:04,806 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 12:25:04,807 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 12:25:04,808 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 12:25:04,809 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 12:25:04,810 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 12:25:04,811 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 12:25:04,813 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 12:25:04,815 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 12:25:04,816 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 12:25:04,817 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 12:25:04,818 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 12:25:04,820 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 12:25:04,821 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 12:25:04,821 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 12:25:04,822 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 12:25:04,822 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 12:25:04,823 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 12:25:04,824 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 12:25:04,824 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 12:25:04,825 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 12:25:04,826 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 12:25:04,827 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 12:25:04,827 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 12:25:04,828 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 12:25:04,828 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 12:25:04,828 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 12:25:04,829 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 12:25:04,829 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 12:25:04,830 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 [2020-07-20 12:25:04,857 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 12:25:04,857 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 12:25:04,859 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 12:25:04,859 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 12:25:04,859 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 12:25:04,860 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 12:25:04,860 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 12:25:04,860 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 12:25:04,860 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 12:25:04,861 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 12:25:04,861 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 12:25:04,861 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 12:25:04,861 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 12:25:04,861 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 12:25:04,861 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 12:25:04,862 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 12:25:04,862 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 12:25:04,862 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 12:25:04,863 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 12:25:04,863 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 12:25:04,864 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 12:25:04,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 12:25:04,864 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 12:25:04,865 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 12:25:04,865 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 12:25:04,865 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 12:25:04,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:25:04,865 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 12:25:04,865 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 12:25:04,866 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-20 12:25:05,138 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 12:25:05,151 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 12:25:05,154 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 12:25:05,155 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 12:25:05,155 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 12:25:05,156 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2020-07-20 12:25:05,216 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/259301f77/d397dff51ed64c5a9c41d5cd7cf34e2f/FLAGf124d9a36 [2020-07-20 12:25:05,699 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 12:25:05,700 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2020-07-20 12:25:05,720 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/259301f77/d397dff51ed64c5a9c41d5cd7cf34e2f/FLAGf124d9a36 [2020-07-20 12:25:06,026 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/259301f77/d397dff51ed64c5a9c41d5cd7cf34e2f [2020-07-20 12:25:06,035 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 12:25:06,038 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 12:25:06,039 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 12:25:06,039 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 12:25:06,045 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 12:25:06,046 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:25:06" (1/1) ... [2020-07-20 12:25:06,049 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c9a4349 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:25:06, skipping insertion in model container [2020-07-20 12:25:06,050 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:25:06" (1/1) ... [2020-07-20 12:25:06,058 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 12:25:06,108 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 12:25:06,300 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 12:25:06,306 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 12:25:06,435 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 12:25:06,455 INFO L208 MainTranslator]: Completed translation [2020-07-20 12:25:06,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:25:06 WrapperNode [2020-07-20 12:25:06,456 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 12:25:06,457 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 12:25:06,457 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 12:25:06,457 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 12:25:06,468 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:25:06" (1/1) ... [2020-07-20 12:25:06,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:25:06" (1/1) ... [2020-07-20 12:25:06,481 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:25:06" (1/1) ... [2020-07-20 12:25:06,481 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:25:06" (1/1) ... [2020-07-20 12:25:06,491 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:25:06" (1/1) ... [2020-07-20 12:25:06,501 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:25:06" (1/1) ... [2020-07-20 12:25:06,503 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:25:06" (1/1) ... [2020-07-20 12:25:06,507 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 12:25:06,507 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 12:25:06,507 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 12:25:06,507 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 12:25:06,508 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:25:06" (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 [2020-07-20 12:25:06,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 12:25:06,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 12:25:06,568 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-07-20 12:25:06,568 INFO L138 BoogieDeclarations]: Found implementation of procedure update_fifo_q [2020-07-20 12:25:06,568 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2020-07-20 12:25:06,568 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2020-07-20 12:25:06,569 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2020-07-20 12:25:06,569 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p [2020-07-20 12:25:06,569 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c [2020-07-20 12:25:06,569 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-07-20 12:25:06,569 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-07-20 12:25:06,569 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-07-20 12:25:06,570 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-07-20 12:25:06,570 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-07-20 12:25:06,570 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-07-20 12:25:06,570 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-07-20 12:25:06,570 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-07-20 12:25:06,570 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-07-20 12:25:06,570 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-07-20 12:25:06,571 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-07-20 12:25:06,571 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-07-20 12:25:06,571 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 12:25:06,571 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 12:25:06,571 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 12:25:06,571 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-07-20 12:25:06,572 INFO L130 BoogieDeclarations]: Found specification of procedure update_fifo_q [2020-07-20 12:25:06,572 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2020-07-20 12:25:06,572 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2020-07-20 12:25:06,572 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2020-07-20 12:25:06,572 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p [2020-07-20 12:25:06,572 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c [2020-07-20 12:25:06,572 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-07-20 12:25:06,573 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-07-20 12:25:06,573 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-07-20 12:25:06,573 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-07-20 12:25:06,573 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-07-20 12:25:06,573 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-07-20 12:25:06,573 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-07-20 12:25:06,573 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-07-20 12:25:06,574 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-07-20 12:25:06,574 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-07-20 12:25:06,574 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-07-20 12:25:06,574 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-07-20 12:25:06,574 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 12:25:06,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 12:25:06,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 12:25:07,141 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume 1 == ~q_free~0;~c_dr_st~0 := 2;~c_dr_pc~0 := 2;~a_t~0 := ~a~0; [2020-07-20 12:25:07,141 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !(1 == ~q_free~0); [2020-07-20 12:25:07,171 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 12:25:07,172 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-20 12:25:07,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 12:25:07 BoogieIcfgContainer [2020-07-20 12:25:07,177 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 12:25:07,179 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 12:25:07,179 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 12:25:07,182 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 12:25:07,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 12:25:06" (1/3) ... [2020-07-20 12:25:07,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@404d2ba0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 12:25:07, skipping insertion in model container [2020-07-20 12:25:07,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:25:06" (2/3) ... [2020-07-20 12:25:07,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@404d2ba0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 12:25:07, skipping insertion in model container [2020-07-20 12:25:07,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 12:25:07" (3/3) ... [2020-07-20 12:25:07,186 INFO L109 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil.c [2020-07-20 12:25:07,196 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 12:25:07,205 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 12:25:07,218 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 12:25:07,242 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 12:25:07,242 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 12:25:07,242 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 12:25:07,242 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 12:25:07,242 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 12:25:07,242 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 12:25:07,242 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 12:25:07,243 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 12:25:07,264 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states. [2020-07-20 12:25:07,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-07-20 12:25:07,275 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 12:25:07,276 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] [2020-07-20 12:25:07,276 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 12:25:07,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 12:25:07,283 INFO L82 PathProgramCache]: Analyzing trace with hash 1427944937, now seen corresponding path program 1 times [2020-07-20 12:25:07,291 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 12:25:07,292 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [388880270] [2020-07-20 12:25:07,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:25:07,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 12:25:07,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 12:25:07,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 12:25:07,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 12:25:07,634 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 12:25:07,635 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [388880270] [2020-07-20 12:25:07,635 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 12:25:07,636 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 12:25:07,637 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121598188] [2020-07-20 12:25:07,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 12:25:07,642 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 12:25:07,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 12:25:07,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 12:25:07,659 INFO L87 Difference]: Start difference. First operand 156 states. Second operand 3 states. [2020-07-20 12:25:07,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 12:25:07,766 INFO L93 Difference]: Finished difference Result 395 states and 564 transitions. [2020-07-20 12:25:07,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 12:25:07,768 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2020-07-20 12:25:07,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 12:25:07,785 INFO L225 Difference]: With dead ends: 395 [2020-07-20 12:25:07,785 INFO L226 Difference]: Without dead ends: 253 [2020-07-20 12:25:07,790 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 12:25:07,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2020-07-20 12:25:07,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 249. [2020-07-20 12:25:07,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-07-20 12:25:07,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 339 transitions. [2020-07-20 12:25:07,882 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 339 transitions. Word has length 78 [2020-07-20 12:25:07,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 12:25:07,883 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 339 transitions. [2020-07-20 12:25:07,883 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 12:25:07,883 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 339 transitions. [2020-07-20 12:25:07,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-07-20 12:25:07,889 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 12:25:07,889 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] [2020-07-20 12:25:08,103 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:25:08,104 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 12:25:08,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 12:25:08,105 INFO L82 PathProgramCache]: Analyzing trace with hash -993372653, now seen corresponding path program 1 times [2020-07-20 12:25:08,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 12:25:08,106 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1180312341] [2020-07-20 12:25:08,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:25:08,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 12:25:08,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 623 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 12:25:08,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 12:25:08,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 12:25:08,294 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 12:25:08,294 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1180312341] [2020-07-20 12:25:08,294 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 12:25:08,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 12:25:08,295 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984080458] [2020-07-20 12:25:08,296 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 12:25:08,297 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 12:25:08,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 12:25:08,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 12:25:08,297 INFO L87 Difference]: Start difference. First operand 249 states and 339 transitions. Second operand 3 states. [2020-07-20 12:25:08,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 12:25:08,377 INFO L93 Difference]: Finished difference Result 675 states and 941 transitions. [2020-07-20 12:25:08,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 12:25:08,378 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 79 [2020-07-20 12:25:08,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 12:25:08,385 INFO L225 Difference]: With dead ends: 675 [2020-07-20 12:25:08,385 INFO L226 Difference]: Without dead ends: 451 [2020-07-20 12:25:08,389 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 12:25:08,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2020-07-20 12:25:08,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 447. [2020-07-20 12:25:08,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 447 states. [2020-07-20 12:25:08,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 609 transitions. [2020-07-20 12:25:08,466 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 609 transitions. Word has length 79 [2020-07-20 12:25:08,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 12:25:08,467 INFO L479 AbstractCegarLoop]: Abstraction has 447 states and 609 transitions. [2020-07-20 12:25:08,467 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 12:25:08,467 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 609 transitions. [2020-07-20 12:25:08,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-07-20 12:25:08,474 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 12:25:08,474 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 12:25:08,688 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:25:08,689 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 12:25:08,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 12:25:08,690 INFO L82 PathProgramCache]: Analyzing trace with hash -628516370, now seen corresponding path program 1 times [2020-07-20 12:25:08,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 12:25:08,691 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [453172981] [2020-07-20 12:25:08,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:25:08,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 12:25:08,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 12:25:08,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 12:25:08,858 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 12:25:08,859 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 12:25:08,859 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [453172981] [2020-07-20 12:25:08,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 12:25:08,860 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 12:25:08,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741569934] [2020-07-20 12:25:08,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 12:25:08,861 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 12:25:08,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 12:25:08,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 12:25:08,862 INFO L87 Difference]: Start difference. First operand 447 states and 609 transitions. Second operand 3 states. [2020-07-20 12:25:08,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 12:25:08,940 INFO L93 Difference]: Finished difference Result 1257 states and 1756 transitions. [2020-07-20 12:25:08,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 12:25:08,941 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 100 [2020-07-20 12:25:08,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 12:25:08,947 INFO L225 Difference]: With dead ends: 1257 [2020-07-20 12:25:08,948 INFO L226 Difference]: Without dead ends: 837 [2020-07-20 12:25:08,950 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 12:25:08,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2020-07-20 12:25:09,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 837. [2020-07-20 12:25:09,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 837 states. [2020-07-20 12:25:09,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 1151 transitions. [2020-07-20 12:25:09,017 INFO L78 Accepts]: Start accepts. Automaton has 837 states and 1151 transitions. Word has length 100 [2020-07-20 12:25:09,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 12:25:09,018 INFO L479 AbstractCegarLoop]: Abstraction has 837 states and 1151 transitions. [2020-07-20 12:25:09,018 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 12:25:09,018 INFO L276 IsEmpty]: Start isEmpty. Operand 837 states and 1151 transitions. [2020-07-20 12:25:09,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-07-20 12:25:09,029 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 12:25:09,032 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 12:25:09,247 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:25:09,248 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 12:25:09,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 12:25:09,248 INFO L82 PathProgramCache]: Analyzing trace with hash 1693230004, now seen corresponding path program 1 times [2020-07-20 12:25:09,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 12:25:09,249 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [728669944] [2020-07-20 12:25:09,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:25:09,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 12:25:09,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 985 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 12:25:09,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 12:25:09,463 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-07-20 12:25:09,463 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 12:25:09,463 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [728669944] [2020-07-20 12:25:09,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 12:25:09,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 12:25:09,464 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423740786] [2020-07-20 12:25:09,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 12:25:09,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 12:25:09,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 12:25:09,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 12:25:09,466 INFO L87 Difference]: Start difference. First operand 837 states and 1151 transitions. Second operand 3 states. [2020-07-20 12:25:09,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 12:25:09,568 INFO L93 Difference]: Finished difference Result 2421 states and 3506 transitions. [2020-07-20 12:25:09,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 12:25:09,569 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 183 [2020-07-20 12:25:09,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 12:25:09,580 INFO L225 Difference]: With dead ends: 2421 [2020-07-20 12:25:09,580 INFO L226 Difference]: Without dead ends: 1621 [2020-07-20 12:25:09,585 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 180 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 12:25:09,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1621 states. [2020-07-20 12:25:09,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1621 to 1601. [2020-07-20 12:25:09,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1601 states. [2020-07-20 12:25:09,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1601 states to 1601 states and 2278 transitions. [2020-07-20 12:25:09,680 INFO L78 Accepts]: Start accepts. Automaton has 1601 states and 2278 transitions. Word has length 183 [2020-07-20 12:25:09,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 12:25:09,681 INFO L479 AbstractCegarLoop]: Abstraction has 1601 states and 2278 transitions. [2020-07-20 12:25:09,681 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 12:25:09,681 INFO L276 IsEmpty]: Start isEmpty. Operand 1601 states and 2278 transitions. [2020-07-20 12:25:09,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-07-20 12:25:09,691 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 12:25:09,691 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 12:25:09,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:25:09,905 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 12:25:09,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 12:25:09,905 INFO L82 PathProgramCache]: Analyzing trace with hash 811575438, now seen corresponding path program 1 times [2020-07-20 12:25:09,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 12:25:09,906 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2090773564] [2020-07-20 12:25:09,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:25:10,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 12:25:10,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 944 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 12:25:10,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 12:25:10,096 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2020-07-20 12:25:10,097 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 12:25:10,098 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2090773564] [2020-07-20 12:25:10,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 12:25:10,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 12:25:10,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636607577] [2020-07-20 12:25:10,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 12:25:10,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 12:25:10,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 12:25:10,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 12:25:10,100 INFO L87 Difference]: Start difference. First operand 1601 states and 2278 transitions. Second operand 3 states. [2020-07-20 12:25:10,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 12:25:10,238 INFO L93 Difference]: Finished difference Result 3933 states and 5729 transitions. [2020-07-20 12:25:10,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 12:25:10,238 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 176 [2020-07-20 12:25:10,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 12:25:10,255 INFO L225 Difference]: With dead ends: 3933 [2020-07-20 12:25:10,255 INFO L226 Difference]: Without dead ends: 2365 [2020-07-20 12:25:10,263 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 173 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 12:25:10,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2365 states. [2020-07-20 12:25:10,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2365 to 2353. [2020-07-20 12:25:10,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2353 states. [2020-07-20 12:25:10,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2353 states to 2353 states and 3313 transitions. [2020-07-20 12:25:10,388 INFO L78 Accepts]: Start accepts. Automaton has 2353 states and 3313 transitions. Word has length 176 [2020-07-20 12:25:10,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 12:25:10,389 INFO L479 AbstractCegarLoop]: Abstraction has 2353 states and 3313 transitions. [2020-07-20 12:25:10,389 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 12:25:10,389 INFO L276 IsEmpty]: Start isEmpty. Operand 2353 states and 3313 transitions. [2020-07-20 12:25:10,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-07-20 12:25:10,401 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 12:25:10,401 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 12:25:10,616 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:25:10,617 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 12:25:10,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 12:25:10,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1413297326, now seen corresponding path program 1 times [2020-07-20 12:25:10,619 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 12:25:10,619 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1268909415] [2020-07-20 12:25:10,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:25:10,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 12:25:10,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 938 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 12:25:10,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 12:25:10,789 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2020-07-20 12:25:10,789 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 12:25:10,790 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1268909415] [2020-07-20 12:25:10,790 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 12:25:10,790 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 12:25:10,790 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100126038] [2020-07-20 12:25:10,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 12:25:10,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 12:25:10,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 12:25:10,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 12:25:10,792 INFO L87 Difference]: Start difference. First operand 2353 states and 3313 transitions. Second operand 3 states. [2020-07-20 12:25:10,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 12:25:10,913 INFO L93 Difference]: Finished difference Result 4301 states and 6038 transitions. [2020-07-20 12:25:10,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 12:25:10,915 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2020-07-20 12:25:10,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 12:25:10,929 INFO L225 Difference]: With dead ends: 4301 [2020-07-20 12:25:10,930 INFO L226 Difference]: Without dead ends: 1972 [2020-07-20 12:25:10,939 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 12:25:10,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1972 states. [2020-07-20 12:25:11,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1972 to 1972. [2020-07-20 12:25:11,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1972 states. [2020-07-20 12:25:11,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1972 states to 1972 states and 2756 transitions. [2020-07-20 12:25:11,054 INFO L78 Accepts]: Start accepts. Automaton has 1972 states and 2756 transitions. Word has length 178 [2020-07-20 12:25:11,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 12:25:11,055 INFO L479 AbstractCegarLoop]: Abstraction has 1972 states and 2756 transitions. [2020-07-20 12:25:11,055 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 12:25:11,055 INFO L276 IsEmpty]: Start isEmpty. Operand 1972 states and 2756 transitions. [2020-07-20 12:25:11,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-07-20 12:25:11,071 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 12:25:11,071 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 12:25:11,285 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:25:11,286 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 12:25:11,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 12:25:11,286 INFO L82 PathProgramCache]: Analyzing trace with hash 165408682, now seen corresponding path program 1 times [2020-07-20 12:25:11,286 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 12:25:11,287 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [874755282] [2020-07-20 12:25:11,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:25:11,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 12:25:11,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 940 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 12:25:11,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 12:25:11,464 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-07-20 12:25:11,464 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 12:25:11,465 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [874755282] [2020-07-20 12:25:11,465 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 12:25:11,465 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 12:25:11,465 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687554581] [2020-07-20 12:25:11,466 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 12:25:11,466 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 12:25:11,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 12:25:11,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 12:25:11,467 INFO L87 Difference]: Start difference. First operand 1972 states and 2756 transitions. Second operand 3 states. [2020-07-20 12:25:11,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 12:25:11,617 INFO L93 Difference]: Finished difference Result 5864 states and 8328 transitions. [2020-07-20 12:25:11,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 12:25:11,618 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2020-07-20 12:25:11,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 12:25:11,643 INFO L225 Difference]: With dead ends: 5864 [2020-07-20 12:25:11,643 INFO L226 Difference]: Without dead ends: 3918 [2020-07-20 12:25:11,652 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 175 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 12:25:11,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3918 states. [2020-07-20 12:25:11,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3918 to 3914. [2020-07-20 12:25:11,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3914 states. [2020-07-20 12:25:11,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3914 states to 3914 states and 5484 transitions. [2020-07-20 12:25:11,873 INFO L78 Accepts]: Start accepts. Automaton has 3914 states and 5484 transitions. Word has length 178 [2020-07-20 12:25:11,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 12:25:11,873 INFO L479 AbstractCegarLoop]: Abstraction has 3914 states and 5484 transitions. [2020-07-20 12:25:11,873 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 12:25:11,873 INFO L276 IsEmpty]: Start isEmpty. Operand 3914 states and 5484 transitions. [2020-07-20 12:25:11,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-07-20 12:25:11,888 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 12:25:11,888 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 12:25:12,102 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:25:12,103 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 12:25:12,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 12:25:12,103 INFO L82 PathProgramCache]: Analyzing trace with hash 1908299713, now seen corresponding path program 1 times [2020-07-20 12:25:12,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 12:25:12,104 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1295102004] [2020-07-20 12:25:12,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:25:12,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 12:25:12,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 938 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 12:25:12,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 12:25:12,308 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-07-20 12:25:12,309 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 12:25:12,309 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1295102004] [2020-07-20 12:25:12,309 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 12:25:12,309 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 12:25:12,310 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113615770] [2020-07-20 12:25:12,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 12:25:12,310 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 12:25:12,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 12:25:12,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 12:25:12,311 INFO L87 Difference]: Start difference. First operand 3914 states and 5484 transitions. Second operand 3 states. [2020-07-20 12:25:12,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 12:25:12,441 INFO L93 Difference]: Finished difference Result 5876 states and 8424 transitions. [2020-07-20 12:25:12,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 12:25:12,441 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2020-07-20 12:25:12,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 12:25:12,443 INFO L225 Difference]: With dead ends: 5876 [2020-07-20 12:25:12,443 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 12:25:12,467 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 12:25:12,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 12:25:12,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 12:25:12,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 12:25:12,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 12:25:12,469 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 179 [2020-07-20 12:25:12,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 12:25:12,469 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 12:25:12,469 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 12:25:12,469 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 12:25:12,469 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 12:25:12,682 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:25:12,685 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 12:25:12,850 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 10 [2020-07-20 12:25:15,451 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 26 [2020-07-20 12:25:15,855 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 26 [2020-07-20 12:25:16,144 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 26 [2020-07-20 12:25:16,435 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 26 [2020-07-20 12:25:16,621 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 24 [2020-07-20 12:25:16,996 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 22 [2020-07-20 12:25:17,460 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 26 [2020-07-20 12:25:17,569 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 16 [2020-07-20 12:25:17,928 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 43 [2020-07-20 12:25:18,053 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 19 [2020-07-20 12:25:18,307 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 26 [2020-07-20 12:25:18,683 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 19 [2020-07-20 12:25:18,890 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 26 [2020-07-20 12:25:19,083 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 19 [2020-07-20 12:25:19,087 INFO L268 CegarLoopResult]: For program point L385(lines 385 389) no Hoare annotation was computed. [2020-07-20 12:25:19,088 INFO L268 CegarLoopResult]: For program point L383(line 383) no Hoare annotation was computed. [2020-07-20 12:25:19,088 INFO L268 CegarLoopResult]: For program point L385-2(lines 369 393) no Hoare annotation was computed. [2020-07-20 12:25:19,088 INFO L268 CegarLoopResult]: For program point L377(lines 377 381) no Hoare annotation was computed. [2020-07-20 12:25:19,088 INFO L264 CegarLoopResult]: At program point L375(line 375) the Hoare annotation is: (let ((.cse0 (not (<= ~c_dr_pc~0 0))) (.cse1 (<= 2 ~c_dr_st~0)) (.cse3 (not (<= 2 |old(~c_dr_st~0)|))) (.cse4 (not (= 0 |old(~p_dw_st~0)|))) (.cse6 (not (= ~c_dr_pc~0 1))) (.cse2 (not (= 1 ~p_dw_i~0))) (.cse5 (= 0 ~p_dw_st~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse2 .cse5) (or .cse1 .cse6 .cse2 .cse3) (or .cse4 .cse6 .cse2 .cse5))) [2020-07-20 12:25:19,089 INFO L264 CegarLoopResult]: At program point L377-2(lines 377 381) the Hoare annotation is: (let ((.cse0 (not (<= ~c_dr_pc~0 0))) (.cse1 (<= 2 ~c_dr_st~0)) (.cse3 (not (<= 2 |old(~c_dr_st~0)|))) (.cse4 (not (= 0 |old(~p_dw_st~0)|))) (.cse6 (not (= ~c_dr_pc~0 1))) (.cse2 (not (= 1 ~p_dw_i~0))) (.cse5 (= 0 ~p_dw_st~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse2 .cse5) (or .cse1 .cse6 .cse2 .cse3) (or .cse4 .cse6 .cse2 .cse5))) [2020-07-20 12:25:19,089 INFO L268 CegarLoopResult]: For program point L375-1(line 375) no Hoare annotation was computed. [2020-07-20 12:25:19,089 INFO L264 CegarLoopResult]: At program point activate_threadsENTRY(lines 369 393) the Hoare annotation is: (let ((.cse0 (not (<= ~c_dr_pc~0 0))) (.cse1 (<= 2 ~c_dr_st~0)) (.cse3 (not (<= 2 |old(~c_dr_st~0)|))) (.cse4 (not (= 0 |old(~p_dw_st~0)|))) (.cse6 (not (= ~c_dr_pc~0 1))) (.cse2 (not (= 1 ~p_dw_i~0))) (.cse5 (= 0 ~p_dw_st~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse2 .cse5) (or .cse1 .cse6 .cse2 .cse3) (or .cse4 .cse6 .cse2 .cse5))) [2020-07-20 12:25:19,090 INFO L268 CegarLoopResult]: For program point activate_threadsEXIT(lines 369 393) no Hoare annotation was computed. [2020-07-20 12:25:19,090 INFO L268 CegarLoopResult]: For program point exists_runnable_threadEXIT(lines 277 296) no Hoare annotation was computed. [2020-07-20 12:25:19,090 INFO L268 CegarLoopResult]: For program point L285(lines 285 290) no Hoare annotation was computed. [2020-07-20 12:25:19,090 INFO L268 CegarLoopResult]: For program point L281(lines 281 291) no Hoare annotation was computed. [2020-07-20 12:25:19,090 INFO L271 CegarLoopResult]: At program point exists_runnable_threadENTRY(lines 277 296) the Hoare annotation is: true [2020-07-20 12:25:19,090 INFO L271 CegarLoopResult]: At program point L293(lines 280 295) the Hoare annotation is: true [2020-07-20 12:25:19,090 INFO L268 CegarLoopResult]: For program point exists_runnable_threadFINAL(lines 277 296) no Hoare annotation was computed. [2020-07-20 12:25:19,090 INFO L271 CegarLoopResult]: At program point update_fifo_qENTRY(lines 22 41) the Hoare annotation is: true [2020-07-20 12:25:19,091 INFO L268 CegarLoopResult]: For program point L31-1(lines 31 35) no Hoare annotation was computed. [2020-07-20 12:25:19,091 INFO L268 CegarLoopResult]: For program point update_fifo_qEXIT(lines 22 41) no Hoare annotation was computed. [2020-07-20 12:25:19,091 INFO L268 CegarLoopResult]: For program point L26-1(lines 25 40) no Hoare annotation was computed. [2020-07-20 12:25:19,091 INFO L268 CegarLoopResult]: For program point update_fifo_qFINAL(lines 22 41) no Hoare annotation was computed. [2020-07-20 12:25:19,091 INFO L268 CegarLoopResult]: For program point reset_delta_eventsEXIT(lines 315 332) no Hoare annotation was computed. [2020-07-20 12:25:19,091 INFO L268 CegarLoopResult]: For program point L319-1(lines 318 331) no Hoare annotation was computed. [2020-07-20 12:25:19,091 INFO L271 CegarLoopResult]: At program point reset_delta_eventsENTRY(lines 315 332) the Hoare annotation is: true [2020-07-20 12:25:19,091 INFO L268 CegarLoopResult]: For program point L324-1(lines 315 332) no Hoare annotation was computed. [2020-07-20 12:25:19,091 INFO L268 CegarLoopResult]: For program point L268-1(lines 259 276) no Hoare annotation was computed. [2020-07-20 12:25:19,091 INFO L268 CegarLoopResult]: For program point init_threadsEXIT(lines 259 276) no Hoare annotation was computed. [2020-07-20 12:25:19,092 INFO L264 CegarLoopResult]: At program point init_threadsENTRY(lines 259 276) the Hoare annotation is: (or (not (<= ~p_dw_pc~0 0)) (not (<= ~c_dr_pc~0 0)) (not (<= 2 ~slow_clk_edge~0)) (not (= 0 |old(~p_dw_st~0)|)) (not (= 1 ~p_dw_i~0)) (= 0 ~p_dw_st~0)) [2020-07-20 12:25:19,092 INFO L268 CegarLoopResult]: For program point L263-1(lines 262 275) no Hoare annotation was computed. [2020-07-20 12:25:19,092 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 544 555) the Hoare annotation is: (or (not (= 0 |old(~p_dw_st~0)|)) (not (<= |old(~c_dr_pc~0)| 0)) (and (<= ~p_dw_pc~0 0) (= 0 ~p_dw_st~0) (<= ~c_dr_pc~0 0)) (not (<= |old(~p_dw_pc~0)| 0))) [2020-07-20 12:25:19,092 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 544 555) no Hoare annotation was computed. [2020-07-20 12:25:19,092 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 544 555) no Hoare annotation was computed. [2020-07-20 12:25:19,092 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-20 12:25:19,092 INFO L264 CegarLoopResult]: At program point L549(line 549) the Hoare annotation is: (or (not (= 0 |old(~p_dw_st~0)|)) (not (<= |old(~c_dr_pc~0)| 0)) (and (<= ~p_dw_pc~0 0) (= 0 ~p_dw_st~0) (<= ~c_dr_pc~0 0)) (not (<= |old(~p_dw_pc~0)| 0))) [2020-07-20 12:25:19,092 INFO L264 CegarLoopResult]: At program point L549-1(line 549) the Hoare annotation is: (or (not (= 0 |old(~p_dw_st~0)|)) (and (<= ~p_dw_pc~0 0) (= 1 ~p_dw_i~0) (= 0 ~p_dw_st~0) (<= 2 ~slow_clk_edge~0) (<= ~c_dr_pc~0 0)) (not (<= |old(~c_dr_pc~0)| 0)) (not (<= |old(~p_dw_pc~0)| 0))) [2020-07-20 12:25:19,092 INFO L264 CegarLoopResult]: At program point L161(lines 138 182) the Hoare annotation is: (let ((.cse0 (not (= 1 ~p_dw_i~0))) (.cse1 (not (<= |old(~p_dw_pc~0)| 0)))) (and (or (not (<= ~c_dr_pc~0 0)) .cse0 .cse1) (or (not (= ~c_dr_pc~0 1)) .cse0 .cse1))) [2020-07-20 12:25:19,093 INFO L264 CegarLoopResult]: At program point do_write_pENTRY(lines 135 183) the Hoare annotation is: (let ((.cse0 (not (<= ~c_dr_pc~0 0))) (.cse4 (<= ~p_dw_pc~0 0)) (.cse6 (not (<= |old(~p_dw_pc~0)| 0))) (.cse5 (not (= ~c_dr_pc~0 1))) (.cse1 (not (= 1 ~p_dw_i~0))) (.cse2 (not (<= 2 |old(~p_dw_pc~0)|))) (.cse3 (<= 2 ~p_dw_pc~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse1 .cse6) (or .cse0 .cse4 .cse1 .cse6) (or .cse5 .cse1 .cse2 .cse3))) [2020-07-20 12:25:19,093 INFO L268 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-07-20 12:25:19,093 INFO L271 CegarLoopResult]: At program point L178(lines 135 183) the Hoare annotation is: true [2020-07-20 12:25:19,093 INFO L268 CegarLoopResult]: For program point L145(lines 145 149) no Hoare annotation was computed. [2020-07-20 12:25:19,093 INFO L264 CegarLoopResult]: At program point L143(lines 138 182) the Hoare annotation is: (let ((.cse2 (not (<= |old(~p_dw_pc~0)| 0))) (.cse3 (not (= ~c_dr_pc~0 1))) (.cse0 (not (<= ~c_dr_pc~0 0))) (.cse1 (not (= 1 ~p_dw_i~0))) (.cse4 (not (<= 2 |old(~p_dw_pc~0)|)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse1 .cse2) (or .cse3 .cse1 .cse4) (or .cse0 .cse1 .cse4))) [2020-07-20 12:25:19,093 INFO L268 CegarLoopResult]: For program point do_write_pEXIT(lines 135 183) no Hoare annotation was computed. [2020-07-20 12:25:19,093 INFO L271 CegarLoopResult]: At program point L154-1(lines 138 182) the Hoare annotation is: true [2020-07-20 12:25:19,094 INFO L268 CegarLoopResult]: For program point L142(lines 142 150) no Hoare annotation was computed. [2020-07-20 12:25:19,094 INFO L268 CegarLoopResult]: For program point errorEXIT(lines 5 12) no Hoare annotation was computed. [2020-07-20 12:25:19,094 INFO L268 CegarLoopResult]: For program point errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2020-07-20 12:25:19,094 INFO L271 CegarLoopResult]: At program point errorENTRY(lines 5 12) the Hoare annotation is: true [2020-07-20 12:25:19,094 INFO L268 CegarLoopResult]: For program point errorFINAL(lines 5 12) no Hoare annotation was computed. [2020-07-20 12:25:19,094 INFO L268 CegarLoopResult]: For program point L126(lines 126 130) no Hoare annotation was computed. [2020-07-20 12:25:19,094 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-20 12:25:19,094 INFO L268 CegarLoopResult]: For program point L126-2(lines 110 134) no Hoare annotation was computed. [2020-07-20 12:25:19,095 INFO L268 CegarLoopResult]: For program point immediate_notify_threadsENTRY(lines 110 134) no Hoare annotation was computed. [2020-07-20 12:25:19,095 INFO L268 CegarLoopResult]: For program point L118(lines 118 122) no Hoare annotation was computed. [2020-07-20 12:25:19,095 INFO L268 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-07-20 12:25:19,095 INFO L268 CegarLoopResult]: For program point L118-2(lines 118 122) no Hoare annotation was computed. [2020-07-20 12:25:19,095 INFO L268 CegarLoopResult]: For program point L116-1(line 116) no Hoare annotation was computed. [2020-07-20 12:25:19,095 INFO L268 CegarLoopResult]: For program point immediate_notify_threadsEXIT(lines 110 134) no Hoare annotation was computed. [2020-07-20 12:25:19,095 INFO L268 CegarLoopResult]: For program point fire_time_eventsEXIT(lines 335 350) no Hoare annotation was computed. [2020-07-20 12:25:19,095 INFO L264 CegarLoopResult]: At program point fire_time_eventsENTRY(lines 335 350) the Hoare annotation is: (let ((.cse0 (not (= 1 ~p_dw_i~0))) (.cse1 (<= 2 ~slow_clk_edge~0)) (.cse2 (not (<= 2 |old(~slow_clk_edge~0)|)))) (and (or (not (= ~c_dr_pc~0 1)) .cse0 .cse1 .cse2) (or (not (<= ~c_dr_pc~0 0)) .cse0 .cse1 .cse2))) [2020-07-20 12:25:19,095 INFO L268 CegarLoopResult]: For program point L339-1(lines 335 350) no Hoare annotation was computed. [2020-07-20 12:25:19,095 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 12:25:19,096 INFO L271 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2020-07-20 12:25:19,096 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 12:25:19,096 INFO L264 CegarLoopResult]: At program point evalENTRY(lines 394 446) the Hoare annotation is: (let ((.cse4 (<= 2 ~c_dr_st~0)) (.cse6 (not (<= 2 |old(~c_dr_st~0)|))) (.cse1 (not (<= 2 |old(~p_dw_pc~0)|))) (.cse3 (<= 2 ~p_dw_pc~0)) (.cse5 (not (<= |old(~c_dr_pc~0)| 0))) (.cse10 (= 0 ~p_dw_st~0)) (.cse7 (<= ~p_dw_pc~0 0)) (.cse8 (not (= 0 |old(~p_dw_st~0)|))) (.cse0 (not (= 1 ~p_dw_i~0))) (.cse2 (not (= 1 |old(~c_dr_pc~0)|))) (.cse9 (not (<= |old(~p_dw_pc~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 (= ~c_dr_pc~0 1) .cse2) (or .cse4 .cse0 .cse5 .cse6) (or .cse4 .cse0 .cse6 .cse2) (or .cse7 .cse8 .cse0 .cse5 .cse9) (or .cse8 .cse0 .cse5 .cse10) (or .cse0 .cse5 .cse1 .cse3) (or .cse0 .cse5 (<= ~c_dr_pc~0 0)) (or .cse8 .cse0 .cse10 .cse2) (or .cse7 .cse8 .cse0 .cse2 .cse9))) [2020-07-20 12:25:19,096 INFO L264 CegarLoopResult]: At program point L417(line 417) the Hoare annotation is: (let ((.cse7 (<= 2 ~c_dr_st~0)) (.cse8 (= 1 ~p_dw_i~0)) (.cse4 (= ~c_dr_pc~0 1))) (let ((.cse1 (and .cse7 .cse8 .cse4)) (.cse5 (not (= 1 |old(~c_dr_pc~0)|))) (.cse0 (not .cse8)) (.cse3 (<= ~c_dr_pc~0 0)) (.cse2 (not (<= |old(~c_dr_pc~0)| 0))) (.cse6 (not (<= 2 |old(~c_dr_st~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse5) (or .cse0 .cse1 .cse6 .cse5) (or .cse0 (and .cse7 .cse3) .cse2 .cse6)))) [2020-07-20 12:25:19,096 INFO L268 CegarLoopResult]: For program point L405(lines 405 409) no Hoare annotation was computed. [2020-07-20 12:25:19,096 INFO L268 CegarLoopResult]: For program point L405-1(lines 400 440) no Hoare annotation was computed. [2020-07-20 12:25:19,096 INFO L268 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-07-20 12:25:19,096 INFO L264 CegarLoopResult]: At program point L401(line 401) the Hoare annotation is: (let ((.cse7 (<= 2 ~c_dr_st~0)) (.cse8 (= 1 ~p_dw_i~0)) (.cse4 (= ~c_dr_pc~0 1))) (let ((.cse1 (and .cse7 .cse8 .cse4)) (.cse5 (not (= 1 |old(~c_dr_pc~0)|))) (.cse0 (not .cse8)) (.cse3 (<= ~c_dr_pc~0 0)) (.cse2 (not (<= |old(~c_dr_pc~0)| 0))) (.cse6 (not (<= 2 |old(~c_dr_st~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse5) (or .cse0 .cse1 .cse6 .cse5) (or .cse0 (and .cse7 .cse3) .cse2 .cse6)))) [2020-07-20 12:25:19,097 INFO L264 CegarLoopResult]: At program point L432(line 432) the Hoare annotation is: (let ((.cse1 (not (= 1 |old(~c_dr_pc~0)|))) (.cse2 (not (<= 2 |old(~c_dr_st~0)|))) (.cse0 (not (= 1 ~p_dw_i~0))) (.cse3 (not (<= |old(~c_dr_pc~0)| 0)))) (and (or .cse0 (= ~c_dr_pc~0 1) .cse1) (or .cse0 .cse2 .cse1) (or .cse0 .cse3 .cse2) (or .cse0 .cse3 (<= ~c_dr_pc~0 0)))) [2020-07-20 12:25:19,097 INFO L268 CegarLoopResult]: For program point L414(lines 414 421) no Hoare annotation was computed. [2020-07-20 12:25:19,097 INFO L268 CegarLoopResult]: For program point evalEXIT(lines 394 446) no Hoare annotation was computed. [2020-07-20 12:25:19,097 INFO L268 CegarLoopResult]: For program point L410(lines 400 440) no Hoare annotation was computed. [2020-07-20 12:25:19,097 INFO L264 CegarLoopResult]: At program point L441(lines 394 446) the Hoare annotation is: (let ((.cse7 (<= 2 ~c_dr_st~0)) (.cse8 (= 1 ~p_dw_i~0)) (.cse4 (= ~c_dr_pc~0 1))) (let ((.cse1 (and .cse7 .cse8 .cse4)) (.cse5 (not (= 1 |old(~c_dr_pc~0)|))) (.cse0 (not .cse8)) (.cse3 (<= ~c_dr_pc~0 0)) (.cse2 (not (<= |old(~c_dr_pc~0)| 0))) (.cse6 (not (<= 2 |old(~c_dr_st~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse5) (or .cse0 .cse1 .cse6 .cse5) (or .cse0 (and .cse7 .cse3) .cse2 .cse6)))) [2020-07-20 12:25:19,097 INFO L268 CegarLoopResult]: For program point L429(lines 429 436) no Hoare annotation was computed. [2020-07-20 12:25:19,097 INFO L264 CegarLoopResult]: At program point L425(lines 400 440) the Hoare annotation is: (let ((.cse7 (<= 2 ~c_dr_st~0)) (.cse8 (= 1 ~p_dw_i~0)) (.cse4 (= ~c_dr_pc~0 1))) (let ((.cse1 (and .cse7 .cse8 .cse4)) (.cse5 (not (= 1 |old(~c_dr_pc~0)|))) (.cse0 (not .cse8)) (.cse3 (<= ~c_dr_pc~0 0)) (.cse2 (not (<= |old(~c_dr_pc~0)| 0))) (.cse6 (not (<= 2 |old(~c_dr_st~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse5) (or .cse0 .cse1 .cse6 .cse5) (or .cse0 (and .cse7 .cse3) .cse2 .cse6)))) [2020-07-20 12:25:19,097 INFO L271 CegarLoopResult]: At program point L462(lines 451 464) the Hoare annotation is: true [2020-07-20 12:25:19,097 INFO L268 CegarLoopResult]: For program point L455(lines 455 460) no Hoare annotation was computed. [2020-07-20 12:25:19,097 INFO L268 CegarLoopResult]: For program point stop_simulationEXIT(lines 447 465) no Hoare annotation was computed. [2020-07-20 12:25:19,098 INFO L271 CegarLoopResult]: At program point L453(line 453) the Hoare annotation is: true [2020-07-20 12:25:19,098 INFO L268 CegarLoopResult]: For program point L453-1(line 453) no Hoare annotation was computed. [2020-07-20 12:25:19,098 INFO L271 CegarLoopResult]: At program point stop_simulationENTRY(lines 447 465) the Hoare annotation is: true [2020-07-20 12:25:19,098 INFO L268 CegarLoopResult]: For program point stop_simulationFINAL(lines 447 465) no Hoare annotation was computed. [2020-07-20 12:25:19,098 INFO L268 CegarLoopResult]: For program point L96(lines 96 101) no Hoare annotation was computed. [2020-07-20 12:25:19,098 INFO L268 CegarLoopResult]: For program point L95-1(lines 95 104) no Hoare annotation was computed. [2020-07-20 12:25:19,098 INFO L271 CegarLoopResult]: At program point is_do_read_c_triggeredENTRY(lines 81 109) the Hoare annotation is: true [2020-07-20 12:25:19,098 INFO L268 CegarLoopResult]: For program point L86(lines 86 91) no Hoare annotation was computed. [2020-07-20 12:25:19,098 INFO L268 CegarLoopResult]: For program point L85(lines 85 94) no Hoare annotation was computed. [2020-07-20 12:25:19,099 INFO L268 CegarLoopResult]: For program point L85-2(lines 84 108) no Hoare annotation was computed. [2020-07-20 12:25:19,099 INFO L268 CegarLoopResult]: For program point is_do_read_c_triggeredFINAL(lines 81 109) no Hoare annotation was computed. [2020-07-20 12:25:19,099 INFO L271 CegarLoopResult]: At program point L106(lines 84 108) the Hoare annotation is: true [2020-07-20 12:25:19,099 INFO L268 CegarLoopResult]: For program point is_do_read_c_triggeredEXIT(lines 81 109) no Hoare annotation was computed. [2020-07-20 12:25:19,099 INFO L271 CegarLoopResult]: At program point update_channelsENTRY(lines 244 258) the Hoare annotation is: true [2020-07-20 12:25:19,099 INFO L268 CegarLoopResult]: For program point update_channelsEXIT(lines 244 258) no Hoare annotation was computed. [2020-07-20 12:25:19,099 INFO L271 CegarLoopResult]: At program point L250(line 250) the Hoare annotation is: true [2020-07-20 12:25:19,099 INFO L268 CegarLoopResult]: For program point L248(lines 244 258) no Hoare annotation was computed. [2020-07-20 12:25:19,099 INFO L271 CegarLoopResult]: At program point fire_delta_eventsENTRY(lines 297 314) the Hoare annotation is: true [2020-07-20 12:25:19,099 INFO L268 CegarLoopResult]: For program point L306-1(lines 297 314) no Hoare annotation was computed. [2020-07-20 12:25:19,099 INFO L268 CegarLoopResult]: For program point L301-1(lines 300 313) no Hoare annotation was computed. [2020-07-20 12:25:19,099 INFO L268 CegarLoopResult]: For program point fire_delta_eventsEXIT(lines 297 314) no Hoare annotation was computed. [2020-07-20 12:25:19,099 INFO L264 CegarLoopResult]: At program point L481-1(lines 478 518) the Hoare annotation is: (or (not (= 0 |old(~p_dw_st~0)|)) (not (= 1 ~p_dw_i~0)) (= ~c_dr_pc~0 1) (not (<= |old(~c_dr_pc~0)| 0)) (<= ~c_dr_pc~0 0) (not (<= 2 |old(~slow_clk_edge~0)|)) (not (<= |old(~p_dw_pc~0)| 0))) [2020-07-20 12:25:19,100 INFO L264 CegarLoopResult]: At program point L477(line 477) the Hoare annotation is: (or (not (= 0 |old(~p_dw_st~0)|)) (and (<= ~p_dw_pc~0 0) (= 0 ~p_dw_st~0) (<= 2 ~slow_clk_edge~0) (<= ~c_dr_pc~0 0)) (not (= 1 ~p_dw_i~0)) (not (<= |old(~c_dr_pc~0)| 0)) (not (<= 2 |old(~slow_clk_edge~0)|)) (not (<= |old(~p_dw_pc~0)| 0))) [2020-07-20 12:25:19,100 INFO L264 CegarLoopResult]: At program point L475(line 475) the Hoare annotation is: (or (not (= 0 |old(~p_dw_st~0)|)) (and (<= ~p_dw_pc~0 0) (= 0 ~p_dw_st~0) (<= 2 ~slow_clk_edge~0) (<= ~c_dr_pc~0 0)) (not (= 1 ~p_dw_i~0)) (not (<= |old(~c_dr_pc~0)| 0)) (not (<= 2 |old(~slow_clk_edge~0)|)) (not (<= |old(~p_dw_pc~0)| 0))) [2020-07-20 12:25:19,100 INFO L268 CegarLoopResult]: For program point start_simulationEXIT(lines 466 524) no Hoare annotation was computed. [2020-07-20 12:25:19,100 INFO L264 CegarLoopResult]: At program point L504(line 504) the Hoare annotation is: (or (not (= 0 |old(~p_dw_st~0)|)) (not (= 1 ~p_dw_i~0)) (= ~c_dr_pc~0 1) (not (<= |old(~c_dr_pc~0)| 0)) (<= ~c_dr_pc~0 0) (not (<= 2 |old(~slow_clk_edge~0)|)) (not (<= |old(~p_dw_pc~0)| 0))) [2020-07-20 12:25:19,100 INFO L268 CegarLoopResult]: For program point L500(lines 500 509) no Hoare annotation was computed. [2020-07-20 12:25:19,100 INFO L264 CegarLoopResult]: At program point L500-1(lines 500 509) the Hoare annotation is: (or (not (= 0 |old(~p_dw_st~0)|)) (not (= 1 ~p_dw_i~0)) (= ~c_dr_pc~0 1) (not (<= |old(~c_dr_pc~0)| 0)) (<= ~c_dr_pc~0 0) (not (<= 2 |old(~slow_clk_edge~0)|)) (not (<= |old(~p_dw_pc~0)| 0))) [2020-07-20 12:25:19,100 INFO L268 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2020-07-20 12:25:19,100 INFO L264 CegarLoopResult]: At program point L494(line 494) the Hoare annotation is: (or (not (= 0 |old(~p_dw_st~0)|)) (not (= 1 ~p_dw_i~0)) (= ~c_dr_pc~0 1) (not (<= |old(~c_dr_pc~0)| 0)) (<= ~c_dr_pc~0 0) (not (<= 2 |old(~slow_clk_edge~0)|)) (not (<= |old(~p_dw_pc~0)| 0))) [2020-07-20 12:25:19,100 INFO L271 CegarLoopResult]: At program point L519(lines 466 524) the Hoare annotation is: true [2020-07-20 12:25:19,101 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-20 12:25:19,101 INFO L268 CegarLoopResult]: For program point L513(lines 513 517) no Hoare annotation was computed. [2020-07-20 12:25:19,101 INFO L264 CegarLoopResult]: At program point start_simulationENTRY(lines 466 524) the Hoare annotation is: (or (not (= 0 |old(~p_dw_st~0)|)) (and (<= ~p_dw_pc~0 0) (= 0 ~p_dw_st~0) (<= 2 ~slow_clk_edge~0) (<= ~c_dr_pc~0 0)) (not (= 1 ~p_dw_i~0)) (not (<= |old(~c_dr_pc~0)| 0)) (not (<= 2 |old(~slow_clk_edge~0)|)) (not (<= |old(~p_dw_pc~0)| 0))) [2020-07-20 12:25:19,101 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-20 12:25:19,101 INFO L264 CegarLoopResult]: At program point L476(line 476) the Hoare annotation is: (or (not (= 0 |old(~p_dw_st~0)|)) (and (<= ~p_dw_pc~0 0) (= 0 ~p_dw_st~0) (<= 2 ~slow_clk_edge~0) (<= ~c_dr_pc~0 0)) (not (= 1 ~p_dw_i~0)) (not (<= |old(~c_dr_pc~0)| 0)) (not (<= 2 |old(~slow_clk_edge~0)|)) (not (<= |old(~p_dw_pc~0)| 0))) [2020-07-20 12:25:19,101 INFO L264 CegarLoopResult]: At program point L474(line 474) the Hoare annotation is: (or (not (= 0 |old(~p_dw_st~0)|)) (and (<= ~p_dw_pc~0 0) (= 0 ~p_dw_st~0) (<= 2 ~slow_clk_edge~0) (<= ~c_dr_pc~0 0)) (not (= 1 ~p_dw_i~0)) (not (<= |old(~c_dr_pc~0)| 0)) (not (<= 2 |old(~slow_clk_edge~0)|)) (not (<= |old(~p_dw_pc~0)| 0))) [2020-07-20 12:25:19,101 INFO L264 CegarLoopResult]: At program point L474-1(line 474) the Hoare annotation is: (or (not (= 0 |old(~p_dw_st~0)|)) (and (<= ~p_dw_pc~0 0) (= 0 ~p_dw_st~0) (<= 2 ~slow_clk_edge~0) (<= ~c_dr_pc~0 0)) (not (= 1 ~p_dw_i~0)) (not (<= |old(~c_dr_pc~0)| 0)) (not (<= 2 |old(~slow_clk_edge~0)|)) (not (<= |old(~p_dw_pc~0)| 0))) [2020-07-20 12:25:19,102 INFO L264 CegarLoopResult]: At program point L503(line 503) the Hoare annotation is: (or (not (= 0 |old(~p_dw_st~0)|)) (not (= 1 ~p_dw_i~0)) (= ~c_dr_pc~0 1) (not (<= |old(~c_dr_pc~0)| 0)) (<= ~c_dr_pc~0 0) (not (<= 2 |old(~slow_clk_edge~0)|)) (not (<= |old(~p_dw_pc~0)| 0))) [2020-07-20 12:25:19,102 INFO L264 CegarLoopResult]: At program point L503-1(line 503) the Hoare annotation is: (or (not (= 0 |old(~p_dw_st~0)|)) (not (= 1 ~p_dw_i~0)) (= ~c_dr_pc~0 1) (not (<= |old(~c_dr_pc~0)| 0)) (<= ~c_dr_pc~0 0) (not (<= 2 |old(~slow_clk_edge~0)|)) (not (<= |old(~p_dw_pc~0)| 0))) [2020-07-20 12:25:19,102 INFO L264 CegarLoopResult]: At program point L495(line 495) the Hoare annotation is: (or (not (= 0 |old(~p_dw_st~0)|)) (not (= 1 ~p_dw_i~0)) (= ~c_dr_pc~0 1) (not (<= |old(~c_dr_pc~0)| 0)) (<= ~c_dr_pc~0 0) (not (<= 2 |old(~slow_clk_edge~0)|)) (not (<= |old(~p_dw_pc~0)| 0))) [2020-07-20 12:25:19,102 INFO L264 CegarLoopResult]: At program point L493(line 493) the Hoare annotation is: (or (not (= 0 |old(~p_dw_st~0)|)) (not (= 1 ~p_dw_i~0)) (= ~c_dr_pc~0 1) (not (<= |old(~c_dr_pc~0)| 0)) (<= ~c_dr_pc~0 0) (not (<= 2 |old(~slow_clk_edge~0)|)) (not (<= |old(~p_dw_pc~0)| 0))) [2020-07-20 12:25:19,102 INFO L264 CegarLoopResult]: At program point L493-1(line 493) the Hoare annotation is: (or (not (= 0 |old(~p_dw_st~0)|)) (not (= 1 ~p_dw_i~0)) (= ~c_dr_pc~0 1) (not (<= |old(~c_dr_pc~0)| 0)) (<= ~c_dr_pc~0 0) (not (<= 2 |old(~slow_clk_edge~0)|)) (not (<= |old(~p_dw_pc~0)| 0))) [2020-07-20 12:25:19,102 INFO L264 CegarLoopResult]: At program point L489(line 489) the Hoare annotation is: (or (not (= 0 |old(~p_dw_st~0)|)) (not (= 1 ~p_dw_i~0)) (= ~c_dr_pc~0 1) (not (<= |old(~c_dr_pc~0)| 0)) (<= ~c_dr_pc~0 0) (not (<= 2 |old(~slow_clk_edge~0)|)) (not (<= |old(~p_dw_pc~0)| 0))) [2020-07-20 12:25:19,102 INFO L268 CegarLoopResult]: For program point L489-1(line 489) no Hoare annotation was computed. [2020-07-20 12:25:19,102 INFO L264 CegarLoopResult]: At program point L485(line 485) the Hoare annotation is: (or (not (= 0 |old(~p_dw_st~0)|)) (not (= 1 ~p_dw_i~0)) (= ~c_dr_pc~0 1) (not (<= |old(~c_dr_pc~0)| 0)) (<= ~c_dr_pc~0 0) (not (<= 2 |old(~slow_clk_edge~0)|)) (not (<= |old(~p_dw_pc~0)| 0))) [2020-07-20 12:25:19,102 INFO L268 CegarLoopResult]: For program point L485-1(line 485) no Hoare annotation was computed. [2020-07-20 12:25:19,103 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 12:25:19,103 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~p_dw_pc~0 0) (= 0 ~p_dw_st~0) (<= ~c_dr_pc~0 0)) [2020-07-20 12:25:19,103 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 12:25:19,103 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 12:25:19,103 INFO L268 CegarLoopResult]: For program point L66-1(lines 66 75) no Hoare annotation was computed. [2020-07-20 12:25:19,103 INFO L268 CegarLoopResult]: For program point L57(lines 57 62) no Hoare annotation was computed. [2020-07-20 12:25:19,103 INFO L268 CegarLoopResult]: For program point L56(lines 56 65) no Hoare annotation was computed. [2020-07-20 12:25:19,103 INFO L268 CegarLoopResult]: For program point L56-2(lines 55 79) no Hoare annotation was computed. [2020-07-20 12:25:19,103 INFO L268 CegarLoopResult]: For program point is_do_write_p_triggeredFINAL(lines 52 80) no Hoare annotation was computed. [2020-07-20 12:25:19,104 INFO L268 CegarLoopResult]: For program point is_do_write_p_triggeredEXIT(lines 52 80) no Hoare annotation was computed. [2020-07-20 12:25:19,104 INFO L271 CegarLoopResult]: At program point L77(lines 55 79) the Hoare annotation is: true [2020-07-20 12:25:19,104 INFO L271 CegarLoopResult]: At program point is_do_write_p_triggeredENTRY(lines 52 80) the Hoare annotation is: true [2020-07-20 12:25:19,104 INFO L268 CegarLoopResult]: For program point L67(lines 67 72) no Hoare annotation was computed. [2020-07-20 12:25:19,104 INFO L268 CegarLoopResult]: For program point reset_time_eventsEXIT(lines 351 368) no Hoare annotation was computed. [2020-07-20 12:25:19,104 INFO L268 CegarLoopResult]: For program point L360-1(lines 351 368) no Hoare annotation was computed. [2020-07-20 12:25:19,104 INFO L264 CegarLoopResult]: At program point reset_time_eventsENTRY(lines 351 368) the Hoare annotation is: (let ((.cse0 (not (= 1 ~p_dw_i~0))) (.cse1 (<= 2 ~slow_clk_edge~0)) (.cse2 (not (<= 2 |old(~slow_clk_edge~0)|)))) (and (or (not (= ~c_dr_pc~0 1)) .cse0 .cse1 .cse2) (or (not (<= ~c_dr_pc~0 0)) .cse0 .cse1 .cse2))) [2020-07-20 12:25:19,104 INFO L268 CegarLoopResult]: For program point L355-1(lines 354 367) no Hoare annotation was computed. [2020-07-20 12:25:19,104 INFO L268 CegarLoopResult]: For program point L225(lines 225 231) no Hoare annotation was computed. [2020-07-20 12:25:19,105 INFO L268 CegarLoopResult]: For program point L192(lines 192 196) no Hoare annotation was computed. [2020-07-20 12:25:19,105 INFO L268 CegarLoopResult]: For program point do_read_cEXIT(lines 185 243) no Hoare annotation was computed. [2020-07-20 12:25:19,105 INFO L264 CegarLoopResult]: At program point L238(lines 185 243) the Hoare annotation is: (let ((.cse2 (= 1 ~p_dw_i~0))) (let ((.cse0 (not .cse2)) (.cse1 (and (<= 2 ~c_dr_st~0) .cse2 (= ~c_dr_pc~0 1)))) (and (or .cse0 .cse1 (not (= 1 |old(~c_dr_pc~0)|))) (or .cse0 .cse1 (not (<= |old(~c_dr_pc~0)| 0)))))) [2020-07-20 12:25:19,105 INFO L264 CegarLoopResult]: At program point L234(line 234) the Hoare annotation is: (let ((.cse0 (not (= 1 ~p_dw_i~0)))) (and (or .cse0 (not (= 1 |old(~c_dr_pc~0)|))) (or .cse0 (not (<= |old(~c_dr_pc~0)| 0))))) [2020-07-20 12:25:19,105 INFO L268 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-07-20 12:25:19,105 INFO L264 CegarLoopResult]: At program point L234-1(lines 188 242) the Hoare annotation is: (or (not (= 1 ~p_dw_i~0)) (= ~c_dr_pc~0 1) (not (= 1 |old(~c_dr_pc~0)|))) [2020-07-20 12:25:19,105 INFO L264 CegarLoopResult]: At program point L193(lines 188 242) the Hoare annotation is: (let ((.cse0 (not (= 1 ~p_dw_i~0)))) (and (or .cse0 (not (= 1 |old(~c_dr_pc~0)|))) (or .cse0 (not (<= |old(~c_dr_pc~0)| 0))))) [2020-07-20 12:25:19,106 INFO L268 CegarLoopResult]: For program point L224(lines 224 236) no Hoare annotation was computed. [2020-07-20 12:25:19,106 INFO L268 CegarLoopResult]: For program point L189(lines 189 197) no Hoare annotation was computed. [2020-07-20 12:25:19,106 INFO L264 CegarLoopResult]: At program point do_read_cENTRY(lines 185 243) the Hoare annotation is: (let ((.cse0 (not (= 1 ~p_dw_i~0)))) (and (or .cse0 (= ~c_dr_pc~0 1) (not (= 1 |old(~c_dr_pc~0)|))) (or .cse0 (not (<= |old(~c_dr_pc~0)| 0)) (<= ~c_dr_pc~0 0)))) [2020-07-20 12:25:19,106 INFO L268 CegarLoopResult]: For program point L208-1(lines 208 218) no Hoare annotation was computed. [2020-07-20 12:25:19,106 INFO L264 CegarLoopResult]: At program point L229(line 229) the Hoare annotation is: (let ((.cse0 (not (= 1 ~p_dw_i~0)))) (and (or .cse0 (not (= 1 |old(~c_dr_pc~0)|))) (or .cse0 (not (<= |old(~c_dr_pc~0)| 0))))) [2020-07-20 12:25:19,106 INFO L268 CegarLoopResult]: For program point init_modelFINAL(lines 525 543) no Hoare annotation was computed. [2020-07-20 12:25:19,106 INFO L268 CegarLoopResult]: For program point init_modelEXIT(lines 525 543) no Hoare annotation was computed. [2020-07-20 12:25:19,107 INFO L264 CegarLoopResult]: At program point init_modelENTRY(lines 525 543) the Hoare annotation is: (or (and (<= ~p_dw_pc~0 0) (<= ~c_dr_pc~0 0)) (not (= 0 ~p_dw_st~0)) (not (<= |old(~c_dr_pc~0)| 0)) (not (<= |old(~p_dw_pc~0)| 0))) [2020-07-20 12:25:19,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 12:25:19 BoogieIcfgContainer [2020-07-20 12:25:19,127 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 12:25:19,129 INFO L168 Benchmark]: Toolchain (without parser) took 13093.06 ms. Allocated memory was 139.5 MB in the beginning and 488.6 MB in the end (delta: 349.2 MB). Free memory was 104.2 MB in the beginning and 285.3 MB in the end (delta: -181.1 MB). Peak memory consumption was 306.3 MB. Max. memory is 7.1 GB. [2020-07-20 12:25:19,130 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 139.5 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 12:25:19,131 INFO L168 Benchmark]: CACSL2BoogieTranslator took 417.63 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 103.7 MB in the beginning and 179.4 MB in the end (delta: -75.7 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2020-07-20 12:25:19,132 INFO L168 Benchmark]: Boogie Preprocessor took 50.30 ms. Allocated memory is still 202.4 MB. Free memory was 179.4 MB in the beginning and 177.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-07-20 12:25:19,132 INFO L168 Benchmark]: RCFGBuilder took 670.45 ms. Allocated memory is still 202.4 MB. Free memory was 177.3 MB in the beginning and 141.4 MB in the end (delta: 35.9 MB). Peak memory consumption was 35.9 MB. Max. memory is 7.1 GB. [2020-07-20 12:25:19,133 INFO L168 Benchmark]: TraceAbstraction took 11948.75 ms. Allocated memory was 202.4 MB in the beginning and 488.6 MB in the end (delta: 286.3 MB). Free memory was 140.7 MB in the beginning and 285.3 MB in the end (delta: -144.5 MB). Peak memory consumption was 280.0 MB. Max. memory is 7.1 GB. [2020-07-20 12:25:19,136 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 139.5 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 417.63 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 103.7 MB in the beginning and 179.4 MB in the end (delta: -75.7 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 50.30 ms. Allocated memory is still 202.4 MB. Free memory was 179.4 MB in the beginning and 177.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 670.45 ms. Allocated memory is still 202.4 MB. Free memory was 177.3 MB in the beginning and 141.4 MB in the end (delta: 35.9 MB). Peak memory consumption was 35.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11948.75 ms. Allocated memory was 202.4 MB in the beginning and 488.6 MB in the end (delta: 286.3 MB). Free memory was 140.7 MB in the beginning and 285.3 MB in the end (delta: -144.5 MB). Peak memory consumption was 280.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 9]: 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 - InvariantResult [Line: 466]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 188]: Loop Invariant Derived loop invariant: (!(1 == p_dw_i) || !(1 == \old(c_dr_pc))) && (!(1 == p_dw_i) || !(\old(c_dr_pc) <= 0)) - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 394]: Loop Invariant Derived loop invariant: (((((!(1 == p_dw_i) || ((2 <= c_dr_st && 1 == p_dw_i) && c_dr_pc == 1)) || !(\old(c_dr_pc) <= 0)) || c_dr_pc <= 0) && ((!(1 == p_dw_i) || c_dr_pc == 1) || !(1 == \old(c_dr_pc)))) && (((!(1 == p_dw_i) || ((2 <= c_dr_st && 1 == p_dw_i) && c_dr_pc == 1)) || !(2 <= \old(c_dr_st))) || !(1 == \old(c_dr_pc)))) && (((!(1 == p_dw_i) || (2 <= c_dr_st && c_dr_pc <= 0)) || !(\old(c_dr_pc) <= 0)) || !(2 <= \old(c_dr_st))) - InvariantResult [Line: 135]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 188]: Loop Invariant Derived loop invariant: (!(1 == p_dw_i) || c_dr_pc == 1) || !(1 == \old(c_dr_pc)) - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: ((((!(c_dr_pc <= 0) || !(1 == p_dw_i)) || !(\old(p_dw_pc) <= 0)) && ((!(c_dr_pc == 1) || !(1 == p_dw_i)) || !(\old(p_dw_pc) <= 0))) && ((!(c_dr_pc == 1) || !(1 == p_dw_i)) || !(2 <= \old(p_dw_pc)))) && ((!(c_dr_pc <= 0) || !(1 == p_dw_i)) || !(2 <= \old(p_dw_pc))) - InvariantResult [Line: 478]: Loop Invariant Derived loop invariant: (((((!(0 == \old(p_dw_st)) || !(1 == p_dw_i)) || c_dr_pc == 1) || !(\old(c_dr_pc) <= 0)) || c_dr_pc <= 0) || !(2 <= \old(slow_clk_edge))) || !(\old(p_dw_pc) <= 0) - InvariantResult [Line: 280]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 451]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: ((!(c_dr_pc <= 0) || !(1 == p_dw_i)) || !(\old(p_dw_pc) <= 0)) && ((!(c_dr_pc == 1) || !(1 == p_dw_i)) || !(\old(p_dw_pc) <= 0)) - InvariantResult [Line: 400]: Loop Invariant Derived loop invariant: (((((!(1 == p_dw_i) || ((2 <= c_dr_st && 1 == p_dw_i) && c_dr_pc == 1)) || !(\old(c_dr_pc) <= 0)) || c_dr_pc <= 0) && ((!(1 == p_dw_i) || c_dr_pc == 1) || !(1 == \old(c_dr_pc)))) && (((!(1 == p_dw_i) || ((2 <= c_dr_st && 1 == p_dw_i) && c_dr_pc == 1)) || !(2 <= \old(c_dr_st))) || !(1 == \old(c_dr_pc)))) && (((!(1 == p_dw_i) || (2 <= c_dr_st && c_dr_pc <= 0)) || !(\old(c_dr_pc) <= 0)) || !(2 <= \old(c_dr_st))) - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 185]: Loop Invariant Derived loop invariant: ((!(1 == p_dw_i) || ((2 <= c_dr_st && 1 == p_dw_i) && c_dr_pc == 1)) || !(1 == \old(c_dr_pc))) && ((!(1 == p_dw_i) || ((2 <= c_dr_st && 1 == p_dw_i) && c_dr_pc == 1)) || !(\old(c_dr_pc) <= 0)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 22 procedures, 158 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.4s, OverallIterations: 8, TraceHistogramMax: 5, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1975 SDtfs, 1058 SDslu, 1140 SDs, 0 SdLazy, 88 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1143 GetRequests, 1131 SyntacticMatches, 4 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3914occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 8 MinimizatonAttempts, 44 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 63 LocationsWithAnnotation, 5202 PreInvPairs, 7120 NumberOfFragments, 1713 HoareAnnotationTreeSize, 5202 FomulaSimplifications, 19966 FormulaSimplificationTreeSizeReduction, 2.2s HoareSimplificationTime, 63 FomulaSimplificationsInter, 35528 FormulaSimplificationTreeSizeReductionInter, 3.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 1151 NumberOfCodeBlocks, 1151 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1143 ConstructedInterpolants, 0 QuantifiedInterpolants, 266849 SizeOfPredicates, 4 NumberOfNonLiveVariables, 6682 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 541/541 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...