/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 [2020-07-21 12:14:59,545 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 12:14:59,548 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 12:14:59,567 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 12:14:59,567 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 12:14:59,569 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 12:14:59,571 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 12:14:59,581 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 12:14:59,585 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 12:14:59,589 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 12:14:59,590 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 12:14:59,591 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 12:14:59,591 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 12:14:59,593 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 12:14:59,595 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 12:14:59,597 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 12:14:59,598 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 12:14:59,599 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 12:14:59,600 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 12:14:59,605 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 12:14:59,610 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 12:14:59,613 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 12:14:59,614 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 12:14:59,615 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 12:14:59,618 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 12:14:59,618 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 12:14:59,618 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 12:14:59,621 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 12:14:59,621 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 12:14:59,623 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 12:14:59,623 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 12:14:59,625 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 12:14:59,625 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 12:14:59,626 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 12:14:59,627 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 12:14:59,627 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 12:14:59,628 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 12:14:59,628 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 12:14:59,628 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 12:14:59,629 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 12:14:59,630 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 12:14:59,631 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 [2020-07-21 12:14:59,664 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 12:14:59,664 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 12:14:59,667 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 12:14:59,668 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 12:14:59,668 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 12:14:59,668 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 12:14:59,668 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 12:14:59,669 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 12:14:59,669 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 12:14:59,669 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 12:14:59,669 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 12:14:59,669 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 12:14:59,670 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 12:14:59,670 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 12:14:59,670 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 12:14:59,670 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 12:14:59,671 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 12:14:59,671 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 12:14:59,672 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 12:14:59,672 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 12:14:59,672 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 12:14:59,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 12:14:59,672 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 12:14:59,673 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 12:14:59,673 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 12:14:59,673 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 12:14:59,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:14:59,677 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 12:14:59,678 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 12:14:59,678 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 [2020-07-21 12:14:59,975 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 12:14:59,989 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 12:14:59,992 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 12:14:59,994 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 12:14:59,994 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 12:14:59,995 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2020-07-21 12:15:00,055 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2efd8e35f/afa89e2b6cce40ec8af114b46489bf78/FLAG4999b242a [2020-07-21 12:15:00,535 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 12:15:00,536 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2020-07-21 12:15:00,551 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2efd8e35f/afa89e2b6cce40ec8af114b46489bf78/FLAG4999b242a [2020-07-21 12:15:00,925 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2efd8e35f/afa89e2b6cce40ec8af114b46489bf78 [2020-07-21 12:15:00,936 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 12:15:00,939 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 12:15:00,940 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 12:15:00,940 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 12:15:00,943 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 12:15:00,944 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:15:00" (1/1) ... [2020-07-21 12:15:00,947 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@316a3cec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:15:00, skipping insertion in model container [2020-07-21 12:15:00,947 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:15:00" (1/1) ... [2020-07-21 12:15:00,953 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 12:15:00,990 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 12:15:01,195 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 12:15:01,201 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 12:15:01,248 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 12:15:01,364 INFO L208 MainTranslator]: Completed translation [2020-07-21 12:15:01,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:15:01 WrapperNode [2020-07-21 12:15:01,364 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 12:15:01,365 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 12:15:01,365 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 12:15:01,365 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 12:15:01,377 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:15:01" (1/1) ... [2020-07-21 12:15:01,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:15:01" (1/1) ... [2020-07-21 12:15:01,385 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:15:01" (1/1) ... [2020-07-21 12:15:01,386 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:15:01" (1/1) ... [2020-07-21 12:15:01,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:15:01" (1/1) ... [2020-07-21 12:15:01,406 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:15:01" (1/1) ... [2020-07-21 12:15:01,409 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:15:01" (1/1) ... [2020-07-21 12:15:01,412 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 12:15:01,413 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 12:15:01,413 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 12:15:01,413 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 12:15:01,414 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:15:01" (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 [2020-07-21 12:15:01,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 12:15:01,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 12:15:01,481 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-07-21 12:15:01,481 INFO L138 BoogieDeclarations]: Found implementation of procedure update_fifo_q [2020-07-21 12:15:01,481 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2020-07-21 12:15:01,481 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2020-07-21 12:15:01,481 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2020-07-21 12:15:01,481 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p [2020-07-21 12:15:01,482 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c [2020-07-21 12:15:01,482 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-07-21 12:15:01,482 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-07-21 12:15:01,482 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-07-21 12:15:01,482 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-07-21 12:15:01,482 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-07-21 12:15:01,482 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-07-21 12:15:01,483 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-07-21 12:15:01,483 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-07-21 12:15:01,483 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-07-21 12:15:01,483 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-07-21 12:15:01,483 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-07-21 12:15:01,483 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-07-21 12:15:01,484 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 12:15:01,484 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 12:15:01,484 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 12:15:01,484 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-07-21 12:15:01,484 INFO L130 BoogieDeclarations]: Found specification of procedure update_fifo_q [2020-07-21 12:15:01,484 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2020-07-21 12:15:01,484 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2020-07-21 12:15:01,485 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2020-07-21 12:15:01,485 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p [2020-07-21 12:15:01,485 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c [2020-07-21 12:15:01,485 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-07-21 12:15:01,485 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-07-21 12:15:01,485 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-07-21 12:15:01,485 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-07-21 12:15:01,485 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-07-21 12:15:01,486 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-07-21 12:15:01,486 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-07-21 12:15:01,486 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-07-21 12:15:01,486 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-07-21 12:15:01,486 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-07-21 12:15:01,486 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-07-21 12:15:01,486 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-07-21 12:15:01,486 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 12:15:01,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 12:15:01,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 12:15:02,012 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; [2020-07-21 12:15:02,013 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !(1 == ~q_free~0); [2020-07-21 12:15:02,038 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 12:15:02,038 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-21 12:15:02,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:15:02 BoogieIcfgContainer [2020-07-21 12:15:02,049 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 12:15:02,052 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 12:15:02,052 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 12:15:02,058 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 12:15:02,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 12:15:00" (1/3) ... [2020-07-21 12:15:02,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2017e05f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:15:02, skipping insertion in model container [2020-07-21 12:15:02,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:15:01" (2/3) ... [2020-07-21 12:15:02,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2017e05f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:15:02, skipping insertion in model container [2020-07-21 12:15:02,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:15:02" (3/3) ... [2020-07-21 12:15:02,061 INFO L109 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil.c [2020-07-21 12:15:02,069 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 12:15:02,077 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 12:15:02,091 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 12:15:02,119 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 12:15:02,119 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 12:15:02,120 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 12:15:02,120 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 12:15:02,120 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 12:15:02,120 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 12:15:02,120 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 12:15:02,121 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 12:15:02,153 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states. [2020-07-21 12:15:02,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-07-21 12:15:02,164 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:15:02,165 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] [2020-07-21 12:15:02,166 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:15:02,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:15:02,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1427944937, now seen corresponding path program 1 times [2020-07-21 12:15:02,185 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:15:02,185 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2083526924] [2020-07-21 12:15:02,186 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 [2020-07-21 12:15:02,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 12:15:02,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 12:15:02,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:15:02,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:15:02,493 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:15:02,494 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2083526924] [2020-07-21 12:15:02,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:15:02,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:15:02,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384370877] [2020-07-21 12:15:02,501 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:15:02,502 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:15:02,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:15:02,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:15:02,519 INFO L87 Difference]: Start difference. First operand 156 states. Second operand 3 states. [2020-07-21 12:15:02,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:15:02,647 INFO L93 Difference]: Finished difference Result 395 states and 564 transitions. [2020-07-21 12:15:02,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:15:02,649 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2020-07-21 12:15:02,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:15:02,667 INFO L225 Difference]: With dead ends: 395 [2020-07-21 12:15:02,667 INFO L226 Difference]: Without dead ends: 253 [2020-07-21 12:15:02,673 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 [2020-07-21 12:15:02,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2020-07-21 12:15:02,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 249. [2020-07-21 12:15:02,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-07-21 12:15:02,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 339 transitions. [2020-07-21 12:15:02,758 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 339 transitions. Word has length 78 [2020-07-21 12:15:02,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:15:02,759 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 339 transitions. [2020-07-21 12:15:02,759 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:15:02,759 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 339 transitions. [2020-07-21 12:15:02,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-07-21 12:15:02,765 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:15:02,765 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] [2020-07-21 12:15:02,979 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:15:02,979 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:15:02,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:15:02,981 INFO L82 PathProgramCache]: Analyzing trace with hash -993372653, now seen corresponding path program 1 times [2020-07-21 12:15:02,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:15:02,982 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1847699292] [2020-07-21 12:15:02,983 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 [2020-07-21 12:15:03,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 12:15:03,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 623 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 12:15:03,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:15:03,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:15:03,181 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:15:03,181 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1847699292] [2020-07-21 12:15:03,181 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:15:03,182 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:15:03,182 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714438000] [2020-07-21 12:15:03,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:15:03,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:15:03,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:15:03,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:15:03,185 INFO L87 Difference]: Start difference. First operand 249 states and 339 transitions. Second operand 3 states. [2020-07-21 12:15:03,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:15:03,257 INFO L93 Difference]: Finished difference Result 675 states and 941 transitions. [2020-07-21 12:15:03,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:15:03,258 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 79 [2020-07-21 12:15:03,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:15:03,265 INFO L225 Difference]: With dead ends: 675 [2020-07-21 12:15:03,265 INFO L226 Difference]: Without dead ends: 451 [2020-07-21 12:15:03,269 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 [2020-07-21 12:15:03,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2020-07-21 12:15:03,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 447. [2020-07-21 12:15:03,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 447 states. [2020-07-21 12:15:03,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 609 transitions. [2020-07-21 12:15:03,374 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 609 transitions. Word has length 79 [2020-07-21 12:15:03,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:15:03,377 INFO L479 AbstractCegarLoop]: Abstraction has 447 states and 609 transitions. [2020-07-21 12:15:03,377 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:15:03,377 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 609 transitions. [2020-07-21 12:15:03,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-07-21 12:15:03,389 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:15:03,389 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] [2020-07-21 12:15:03,590 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:15:03,591 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:15:03,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:15:03,591 INFO L82 PathProgramCache]: Analyzing trace with hash -628516370, now seen corresponding path program 1 times [2020-07-21 12:15:03,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:15:03,592 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [416887745] [2020-07-21 12:15:03,593 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 [2020-07-21 12:15:03,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 12:15:03,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 12:15:03,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:15:03,777 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:15:03,778 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:15:03,778 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [416887745] [2020-07-21 12:15:03,778 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:15:03,779 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:15:03,779 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663461205] [2020-07-21 12:15:03,781 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:15:03,781 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:15:03,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:15:03,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:15:03,782 INFO L87 Difference]: Start difference. First operand 447 states and 609 transitions. Second operand 3 states. [2020-07-21 12:15:03,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:15:03,898 INFO L93 Difference]: Finished difference Result 1257 states and 1756 transitions. [2020-07-21 12:15:03,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:15:03,899 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 100 [2020-07-21 12:15:03,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:15:03,932 INFO L225 Difference]: With dead ends: 1257 [2020-07-21 12:15:03,934 INFO L226 Difference]: Without dead ends: 837 [2020-07-21 12:15:03,945 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 [2020-07-21 12:15:03,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2020-07-21 12:15:03,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 837. [2020-07-21 12:15:03,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 837 states. [2020-07-21 12:15:04,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 1151 transitions. [2020-07-21 12:15:04,007 INFO L78 Accepts]: Start accepts. Automaton has 837 states and 1151 transitions. Word has length 100 [2020-07-21 12:15:04,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:15:04,008 INFO L479 AbstractCegarLoop]: Abstraction has 837 states and 1151 transitions. [2020-07-21 12:15:04,008 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:15:04,008 INFO L276 IsEmpty]: Start isEmpty. Operand 837 states and 1151 transitions. [2020-07-21 12:15:04,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-07-21 12:15:04,016 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:15:04,017 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] [2020-07-21 12:15:04,230 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:15:04,231 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:15:04,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:15:04,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1693230004, now seen corresponding path program 1 times [2020-07-21 12:15:04,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:15:04,233 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1912245899] [2020-07-21 12:15:04,233 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 [2020-07-21 12:15:04,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 12:15:04,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 985 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 12:15:04,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:15:04,469 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-07-21 12:15:04,470 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:15:04,470 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1912245899] [2020-07-21 12:15:04,470 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:15:04,471 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:15:04,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064899979] [2020-07-21 12:15:04,472 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:15:04,472 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:15:04,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:15:04,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:15:04,473 INFO L87 Difference]: Start difference. First operand 837 states and 1151 transitions. Second operand 3 states. [2020-07-21 12:15:04,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:15:04,565 INFO L93 Difference]: Finished difference Result 2421 states and 3506 transitions. [2020-07-21 12:15:04,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:15:04,566 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 183 [2020-07-21 12:15:04,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:15:04,599 INFO L225 Difference]: With dead ends: 2421 [2020-07-21 12:15:04,599 INFO L226 Difference]: Without dead ends: 1621 [2020-07-21 12:15:04,604 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 [2020-07-21 12:15:04,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1621 states. [2020-07-21 12:15:04,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1621 to 1601. [2020-07-21 12:15:04,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1601 states. [2020-07-21 12:15:04,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1601 states to 1601 states and 2278 transitions. [2020-07-21 12:15:04,720 INFO L78 Accepts]: Start accepts. Automaton has 1601 states and 2278 transitions. Word has length 183 [2020-07-21 12:15:04,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:15:04,721 INFO L479 AbstractCegarLoop]: Abstraction has 1601 states and 2278 transitions. [2020-07-21 12:15:04,721 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:15:04,721 INFO L276 IsEmpty]: Start isEmpty. Operand 1601 states and 2278 transitions. [2020-07-21 12:15:04,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-07-21 12:15:04,736 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:15:04,736 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] [2020-07-21 12:15:04,950 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:15:04,951 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:15:04,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:15:04,951 INFO L82 PathProgramCache]: Analyzing trace with hash 811575438, now seen corresponding path program 1 times [2020-07-21 12:15:04,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:15:04,952 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [427078341] [2020-07-21 12:15:04,953 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 [2020-07-21 12:15:05,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 12:15:05,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 944 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 12:15:05,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:15:05,180 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2020-07-21 12:15:05,180 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:15:05,180 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [427078341] [2020-07-21 12:15:05,181 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:15:05,181 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:15:05,181 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571613198] [2020-07-21 12:15:05,183 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:15:05,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:15:05,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:15:05,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:15:05,185 INFO L87 Difference]: Start difference. First operand 1601 states and 2278 transitions. Second operand 3 states. [2020-07-21 12:15:05,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:15:05,365 INFO L93 Difference]: Finished difference Result 3933 states and 5729 transitions. [2020-07-21 12:15:05,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:15:05,365 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 176 [2020-07-21 12:15:05,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:15:05,386 INFO L225 Difference]: With dead ends: 3933 [2020-07-21 12:15:05,386 INFO L226 Difference]: Without dead ends: 2365 [2020-07-21 12:15:05,395 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 [2020-07-21 12:15:05,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2365 states. [2020-07-21 12:15:05,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2365 to 2353. [2020-07-21 12:15:05,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2353 states. [2020-07-21 12:15:05,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2353 states to 2353 states and 3313 transitions. [2020-07-21 12:15:05,544 INFO L78 Accepts]: Start accepts. Automaton has 2353 states and 3313 transitions. Word has length 176 [2020-07-21 12:15:05,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:15:05,545 INFO L479 AbstractCegarLoop]: Abstraction has 2353 states and 3313 transitions. [2020-07-21 12:15:05,545 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:15:05,545 INFO L276 IsEmpty]: Start isEmpty. Operand 2353 states and 3313 transitions. [2020-07-21 12:15:05,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-07-21 12:15:05,560 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:15:05,560 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] [2020-07-21 12:15:05,773 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:15:05,774 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:15:05,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:15:05,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1413297326, now seen corresponding path program 1 times [2020-07-21 12:15:05,775 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:15:05,775 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [226399288] [2020-07-21 12:15:05,776 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 [2020-07-21 12:15:05,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 12:15:05,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 938 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 12:15:05,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:15:05,967 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2020-07-21 12:15:05,968 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:15:05,969 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [226399288] [2020-07-21 12:15:05,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:15:05,970 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:15:05,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820789543] [2020-07-21 12:15:05,970 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:15:05,971 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:15:05,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:15:05,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:15:05,971 INFO L87 Difference]: Start difference. First operand 2353 states and 3313 transitions. Second operand 3 states. [2020-07-21 12:15:06,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:15:06,131 INFO L93 Difference]: Finished difference Result 4301 states and 6038 transitions. [2020-07-21 12:15:06,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:15:06,132 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2020-07-21 12:15:06,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:15:06,146 INFO L225 Difference]: With dead ends: 4301 [2020-07-21 12:15:06,146 INFO L226 Difference]: Without dead ends: 1972 [2020-07-21 12:15:06,154 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 [2020-07-21 12:15:06,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1972 states. [2020-07-21 12:15:06,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1972 to 1972. [2020-07-21 12:15:06,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1972 states. [2020-07-21 12:15:06,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1972 states to 1972 states and 2756 transitions. [2020-07-21 12:15:06,259 INFO L78 Accepts]: Start accepts. Automaton has 1972 states and 2756 transitions. Word has length 178 [2020-07-21 12:15:06,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:15:06,259 INFO L479 AbstractCegarLoop]: Abstraction has 1972 states and 2756 transitions. [2020-07-21 12:15:06,259 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:15:06,259 INFO L276 IsEmpty]: Start isEmpty. Operand 1972 states and 2756 transitions. [2020-07-21 12:15:06,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-07-21 12:15:06,272 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:15:06,273 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] [2020-07-21 12:15:06,487 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:15:06,488 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:15:06,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:15:06,488 INFO L82 PathProgramCache]: Analyzing trace with hash 165408682, now seen corresponding path program 1 times [2020-07-21 12:15:06,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:15:06,489 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [357097875] [2020-07-21 12:15:06,489 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 [2020-07-21 12:15:06,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 12:15:06,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 940 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 12:15:06,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:15:06,679 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-07-21 12:15:06,679 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:15:06,680 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [357097875] [2020-07-21 12:15:06,680 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:15:06,680 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:15:06,680 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551454809] [2020-07-21 12:15:06,681 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:15:06,681 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:15:06,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:15:06,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:15:06,682 INFO L87 Difference]: Start difference. First operand 1972 states and 2756 transitions. Second operand 3 states. [2020-07-21 12:15:06,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:15:06,886 INFO L93 Difference]: Finished difference Result 5864 states and 8328 transitions. [2020-07-21 12:15:06,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:15:06,886 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2020-07-21 12:15:06,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:15:06,912 INFO L225 Difference]: With dead ends: 5864 [2020-07-21 12:15:06,912 INFO L226 Difference]: Without dead ends: 3918 [2020-07-21 12:15:06,922 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 [2020-07-21 12:15:06,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3918 states. [2020-07-21 12:15:07,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3918 to 3914. [2020-07-21 12:15:07,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3914 states. [2020-07-21 12:15:07,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3914 states to 3914 states and 5484 transitions. [2020-07-21 12:15:07,161 INFO L78 Accepts]: Start accepts. Automaton has 3914 states and 5484 transitions. Word has length 178 [2020-07-21 12:15:07,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:15:07,163 INFO L479 AbstractCegarLoop]: Abstraction has 3914 states and 5484 transitions. [2020-07-21 12:15:07,163 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:15:07,164 INFO L276 IsEmpty]: Start isEmpty. Operand 3914 states and 5484 transitions. [2020-07-21 12:15:07,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-07-21 12:15:07,179 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:15:07,180 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] [2020-07-21 12:15:07,395 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:15:07,396 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:15:07,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:15:07,397 INFO L82 PathProgramCache]: Analyzing trace with hash 1908299713, now seen corresponding path program 1 times [2020-07-21 12:15:07,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:15:07,397 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1965044302] [2020-07-21 12:15:07,398 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 [2020-07-21 12:15:07,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 12:15:07,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 938 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 12:15:07,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:15:07,589 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-07-21 12:15:07,590 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:15:07,590 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1965044302] [2020-07-21 12:15:07,590 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:15:07,590 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:15:07,591 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110469352] [2020-07-21 12:15:07,591 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:15:07,591 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:15:07,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:15:07,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:15:07,592 INFO L87 Difference]: Start difference. First operand 3914 states and 5484 transitions. Second operand 3 states. [2020-07-21 12:15:07,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:15:07,826 INFO L93 Difference]: Finished difference Result 5876 states and 8424 transitions. [2020-07-21 12:15:07,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:15:07,826 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2020-07-21 12:15:07,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:15:07,828 INFO L225 Difference]: With dead ends: 5876 [2020-07-21 12:15:07,828 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 12:15:07,848 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 [2020-07-21 12:15:07,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 12:15:07,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 12:15:07,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 12:15:07,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 12:15:07,849 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 179 [2020-07-21 12:15:07,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:15:07,850 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 12:15:07,850 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:15:07,850 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 12:15:07,850 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 12:15:08,064 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:15:08,067 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 12:15:08,210 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 10 [2020-07-21 12:15:11,196 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 26 [2020-07-21 12:15:11,584 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 26 [2020-07-21 12:15:11,949 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 26 [2020-07-21 12:15:12,281 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 26 [2020-07-21 12:15:12,473 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 24 [2020-07-21 12:15:12,866 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 22 [2020-07-21 12:15:13,044 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 21 [2020-07-21 12:15:13,396 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 26 [2020-07-21 12:15:13,551 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 16 [2020-07-21 12:15:13,936 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 43 [2020-07-21 12:15:14,083 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 19 [2020-07-21 12:15:14,361 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 26 [2020-07-21 12:15:14,749 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 19 [2020-07-21 12:15:14,969 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 26 [2020-07-21 12:15:15,220 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 19 [2020-07-21 12:15:15,223 INFO L268 CegarLoopResult]: For program point L385(lines 385 389) no Hoare annotation was computed. [2020-07-21 12:15:15,224 INFO L268 CegarLoopResult]: For program point L383(line 383) no Hoare annotation was computed. [2020-07-21 12:15:15,224 INFO L268 CegarLoopResult]: For program point L385-2(lines 369 393) no Hoare annotation was computed. [2020-07-21 12:15:15,224 INFO L268 CegarLoopResult]: For program point L377(lines 377 381) no Hoare annotation was computed. [2020-07-21 12:15:15,224 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))) [2020-07-21 12:15:15,225 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))) [2020-07-21 12:15:15,225 INFO L268 CegarLoopResult]: For program point L375-1(line 375) no Hoare annotation was computed. [2020-07-21 12:15:15,225 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))) [2020-07-21 12:15:15,225 INFO L268 CegarLoopResult]: For program point activate_threadsEXIT(lines 369 393) no Hoare annotation was computed. [2020-07-21 12:15:15,226 INFO L268 CegarLoopResult]: For program point exists_runnable_threadEXIT(lines 277 296) no Hoare annotation was computed. [2020-07-21 12:15:15,226 INFO L268 CegarLoopResult]: For program point L285(lines 285 290) no Hoare annotation was computed. [2020-07-21 12:15:15,226 INFO L268 CegarLoopResult]: For program point L281(lines 281 291) no Hoare annotation was computed. [2020-07-21 12:15:15,226 INFO L271 CegarLoopResult]: At program point exists_runnable_threadENTRY(lines 277 296) the Hoare annotation is: true [2020-07-21 12:15:15,227 INFO L271 CegarLoopResult]: At program point L293(lines 280 295) the Hoare annotation is: true [2020-07-21 12:15:15,227 INFO L268 CegarLoopResult]: For program point exists_runnable_threadFINAL(lines 277 296) no Hoare annotation was computed. [2020-07-21 12:15:15,227 INFO L271 CegarLoopResult]: At program point update_fifo_qENTRY(lines 22 41) the Hoare annotation is: true [2020-07-21 12:15:15,227 INFO L268 CegarLoopResult]: For program point L31-1(lines 31 35) no Hoare annotation was computed. [2020-07-21 12:15:15,227 INFO L268 CegarLoopResult]: For program point update_fifo_qEXIT(lines 22 41) no Hoare annotation was computed. [2020-07-21 12:15:15,227 INFO L268 CegarLoopResult]: For program point L26-1(lines 25 40) no Hoare annotation was computed. [2020-07-21 12:15:15,228 INFO L268 CegarLoopResult]: For program point update_fifo_qFINAL(lines 22 41) no Hoare annotation was computed. [2020-07-21 12:15:15,228 INFO L268 CegarLoopResult]: For program point reset_delta_eventsEXIT(lines 315 332) no Hoare annotation was computed. [2020-07-21 12:15:15,228 INFO L268 CegarLoopResult]: For program point L319-1(lines 318 331) no Hoare annotation was computed. [2020-07-21 12:15:15,228 INFO L271 CegarLoopResult]: At program point reset_delta_eventsENTRY(lines 315 332) the Hoare annotation is: true [2020-07-21 12:15:15,228 INFO L268 CegarLoopResult]: For program point L324-1(lines 315 332) no Hoare annotation was computed. [2020-07-21 12:15:15,228 INFO L268 CegarLoopResult]: For program point L268-1(lines 259 276) no Hoare annotation was computed. [2020-07-21 12:15:15,228 INFO L268 CegarLoopResult]: For program point init_threadsEXIT(lines 259 276) no Hoare annotation was computed. [2020-07-21 12:15:15,228 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)) [2020-07-21 12:15:15,228 INFO L268 CegarLoopResult]: For program point L263-1(lines 262 275) no Hoare annotation was computed. [2020-07-21 12:15:15,228 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))) [2020-07-21 12:15:15,228 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 544 555) no Hoare annotation was computed. [2020-07-21 12:15:15,229 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 544 555) no Hoare annotation was computed. [2020-07-21 12:15:15,229 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 12:15:15,229 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))) [2020-07-21 12:15:15,229 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))) [2020-07-21 12:15:15,229 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))) [2020-07-21 12:15:15,229 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))) [2020-07-21 12:15:15,229 INFO L268 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-07-21 12:15:15,229 INFO L271 CegarLoopResult]: At program point L178(lines 135 183) the Hoare annotation is: true [2020-07-21 12:15:15,230 INFO L268 CegarLoopResult]: For program point L145(lines 145 149) no Hoare annotation was computed. [2020-07-21 12:15:15,230 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))) [2020-07-21 12:15:15,230 INFO L268 CegarLoopResult]: For program point do_write_pEXIT(lines 135 183) no Hoare annotation was computed. [2020-07-21 12:15:15,230 INFO L271 CegarLoopResult]: At program point L154-1(lines 138 182) the Hoare annotation is: true [2020-07-21 12:15:15,230 INFO L268 CegarLoopResult]: For program point L142(lines 142 150) no Hoare annotation was computed. [2020-07-21 12:15:15,230 INFO L268 CegarLoopResult]: For program point errorEXIT(lines 5 12) no Hoare annotation was computed. [2020-07-21 12:15:15,230 INFO L268 CegarLoopResult]: For program point errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2020-07-21 12:15:15,231 INFO L271 CegarLoopResult]: At program point errorENTRY(lines 5 12) the Hoare annotation is: true [2020-07-21 12:15:15,231 INFO L268 CegarLoopResult]: For program point errorFINAL(lines 5 12) no Hoare annotation was computed. [2020-07-21 12:15:15,231 INFO L268 CegarLoopResult]: For program point L126(lines 126 130) no Hoare annotation was computed. [2020-07-21 12:15:15,231 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-21 12:15:15,231 INFO L268 CegarLoopResult]: For program point L126-2(lines 110 134) no Hoare annotation was computed. [2020-07-21 12:15:15,231 INFO L268 CegarLoopResult]: For program point immediate_notify_threadsENTRY(lines 110 134) no Hoare annotation was computed. [2020-07-21 12:15:15,231 INFO L268 CegarLoopResult]: For program point L118(lines 118 122) no Hoare annotation was computed. [2020-07-21 12:15:15,231 INFO L268 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-07-21 12:15:15,232 INFO L268 CegarLoopResult]: For program point L118-2(lines 118 122) no Hoare annotation was computed. [2020-07-21 12:15:15,232 INFO L268 CegarLoopResult]: For program point L116-1(line 116) no Hoare annotation was computed. [2020-07-21 12:15:15,232 INFO L268 CegarLoopResult]: For program point immediate_notify_threadsEXIT(lines 110 134) no Hoare annotation was computed. [2020-07-21 12:15:15,232 INFO L268 CegarLoopResult]: For program point fire_time_eventsEXIT(lines 335 350) no Hoare annotation was computed. [2020-07-21 12:15:15,232 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))) [2020-07-21 12:15:15,232 INFO L268 CegarLoopResult]: For program point L339-1(lines 335 350) no Hoare annotation was computed. [2020-07-21 12:15:15,232 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 12:15:15,232 INFO L271 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2020-07-21 12:15:15,232 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 12:15:15,232 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))) [2020-07-21 12:15:15,233 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)))) [2020-07-21 12:15:15,233 INFO L268 CegarLoopResult]: For program point L405(lines 405 409) no Hoare annotation was computed. [2020-07-21 12:15:15,233 INFO L268 CegarLoopResult]: For program point L405-1(lines 400 440) no Hoare annotation was computed. [2020-07-21 12:15:15,233 INFO L268 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-07-21 12:15:15,233 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)))) [2020-07-21 12:15:15,233 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)))) [2020-07-21 12:15:15,234 INFO L268 CegarLoopResult]: For program point L414(lines 414 421) no Hoare annotation was computed. [2020-07-21 12:15:15,234 INFO L268 CegarLoopResult]: For program point evalEXIT(lines 394 446) no Hoare annotation was computed. [2020-07-21 12:15:15,234 INFO L268 CegarLoopResult]: For program point L410(lines 400 440) no Hoare annotation was computed. [2020-07-21 12:15:15,234 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)))) [2020-07-21 12:15:15,234 INFO L268 CegarLoopResult]: For program point L429(lines 429 436) no Hoare annotation was computed. [2020-07-21 12:15:15,234 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)))) [2020-07-21 12:15:15,234 INFO L271 CegarLoopResult]: At program point L462(lines 451 464) the Hoare annotation is: true [2020-07-21 12:15:15,235 INFO L268 CegarLoopResult]: For program point L455(lines 455 460) no Hoare annotation was computed. [2020-07-21 12:15:15,235 INFO L268 CegarLoopResult]: For program point stop_simulationEXIT(lines 447 465) no Hoare annotation was computed. [2020-07-21 12:15:15,235 INFO L271 CegarLoopResult]: At program point L453(line 453) the Hoare annotation is: true [2020-07-21 12:15:15,235 INFO L268 CegarLoopResult]: For program point L453-1(line 453) no Hoare annotation was computed. [2020-07-21 12:15:15,235 INFO L271 CegarLoopResult]: At program point stop_simulationENTRY(lines 447 465) the Hoare annotation is: true [2020-07-21 12:15:15,235 INFO L268 CegarLoopResult]: For program point stop_simulationFINAL(lines 447 465) no Hoare annotation was computed. [2020-07-21 12:15:15,235 INFO L268 CegarLoopResult]: For program point L96(lines 96 101) no Hoare annotation was computed. [2020-07-21 12:15:15,236 INFO L268 CegarLoopResult]: For program point L95-1(lines 95 104) no Hoare annotation was computed. [2020-07-21 12:15:15,236 INFO L271 CegarLoopResult]: At program point is_do_read_c_triggeredENTRY(lines 81 109) the Hoare annotation is: true [2020-07-21 12:15:15,236 INFO L268 CegarLoopResult]: For program point L86(lines 86 91) no Hoare annotation was computed. [2020-07-21 12:15:15,236 INFO L268 CegarLoopResult]: For program point L85(lines 85 94) no Hoare annotation was computed. [2020-07-21 12:15:15,236 INFO L268 CegarLoopResult]: For program point L85-2(lines 84 108) no Hoare annotation was computed. [2020-07-21 12:15:15,236 INFO L268 CegarLoopResult]: For program point is_do_read_c_triggeredFINAL(lines 81 109) no Hoare annotation was computed. [2020-07-21 12:15:15,236 INFO L271 CegarLoopResult]: At program point L106(lines 84 108) the Hoare annotation is: true [2020-07-21 12:15:15,236 INFO L268 CegarLoopResult]: For program point is_do_read_c_triggeredEXIT(lines 81 109) no Hoare annotation was computed. [2020-07-21 12:15:15,236 INFO L271 CegarLoopResult]: At program point update_channelsENTRY(lines 244 258) the Hoare annotation is: true [2020-07-21 12:15:15,236 INFO L268 CegarLoopResult]: For program point update_channelsEXIT(lines 244 258) no Hoare annotation was computed. [2020-07-21 12:15:15,237 INFO L271 CegarLoopResult]: At program point L250(line 250) the Hoare annotation is: true [2020-07-21 12:15:15,237 INFO L268 CegarLoopResult]: For program point L248(lines 244 258) no Hoare annotation was computed. [2020-07-21 12:15:15,237 INFO L271 CegarLoopResult]: At program point fire_delta_eventsENTRY(lines 297 314) the Hoare annotation is: true [2020-07-21 12:15:15,237 INFO L268 CegarLoopResult]: For program point L306-1(lines 297 314) no Hoare annotation was computed. [2020-07-21 12:15:15,237 INFO L268 CegarLoopResult]: For program point L301-1(lines 300 313) no Hoare annotation was computed. [2020-07-21 12:15:15,237 INFO L268 CegarLoopResult]: For program point fire_delta_eventsEXIT(lines 297 314) no Hoare annotation was computed. [2020-07-21 12:15:15,237 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))) [2020-07-21 12:15:15,237 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))) [2020-07-21 12:15:15,237 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))) [2020-07-21 12:15:15,237 INFO L268 CegarLoopResult]: For program point start_simulationEXIT(lines 466 524) no Hoare annotation was computed. [2020-07-21 12:15:15,238 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))) [2020-07-21 12:15:15,238 INFO L268 CegarLoopResult]: For program point L500(lines 500 509) no Hoare annotation was computed. [2020-07-21 12:15:15,238 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))) [2020-07-21 12:15:15,238 INFO L268 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2020-07-21 12:15:15,238 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))) [2020-07-21 12:15:15,238 INFO L271 CegarLoopResult]: At program point L519(lines 466 524) the Hoare annotation is: true [2020-07-21 12:15:15,238 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-21 12:15:15,238 INFO L268 CegarLoopResult]: For program point L513(lines 513 517) no Hoare annotation was computed. [2020-07-21 12:15:15,238 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))) [2020-07-21 12:15:15,239 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 12:15:15,239 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))) [2020-07-21 12:15:15,239 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))) [2020-07-21 12:15:15,239 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))) [2020-07-21 12:15:15,239 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))) [2020-07-21 12:15:15,239 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))) [2020-07-21 12:15:15,239 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))) [2020-07-21 12:15:15,240 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))) [2020-07-21 12:15:15,240 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))) [2020-07-21 12:15:15,240 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))) [2020-07-21 12:15:15,240 INFO L268 CegarLoopResult]: For program point L489-1(line 489) no Hoare annotation was computed. [2020-07-21 12:15:15,240 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))) [2020-07-21 12:15:15,240 INFO L268 CegarLoopResult]: For program point L485-1(line 485) no Hoare annotation was computed. [2020-07-21 12:15:15,240 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 12:15:15,240 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)) [2020-07-21 12:15:15,240 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 12:15:15,240 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 12:15:15,240 INFO L268 CegarLoopResult]: For program point L66-1(lines 66 75) no Hoare annotation was computed. [2020-07-21 12:15:15,241 INFO L268 CegarLoopResult]: For program point L57(lines 57 62) no Hoare annotation was computed. [2020-07-21 12:15:15,241 INFO L268 CegarLoopResult]: For program point L56(lines 56 65) no Hoare annotation was computed. [2020-07-21 12:15:15,241 INFO L268 CegarLoopResult]: For program point L56-2(lines 55 79) no Hoare annotation was computed. [2020-07-21 12:15:15,241 INFO L268 CegarLoopResult]: For program point is_do_write_p_triggeredFINAL(lines 52 80) no Hoare annotation was computed. [2020-07-21 12:15:15,241 INFO L268 CegarLoopResult]: For program point is_do_write_p_triggeredEXIT(lines 52 80) no Hoare annotation was computed. [2020-07-21 12:15:15,241 INFO L271 CegarLoopResult]: At program point L77(lines 55 79) the Hoare annotation is: true [2020-07-21 12:15:15,241 INFO L271 CegarLoopResult]: At program point is_do_write_p_triggeredENTRY(lines 52 80) the Hoare annotation is: true [2020-07-21 12:15:15,241 INFO L268 CegarLoopResult]: For program point L67(lines 67 72) no Hoare annotation was computed. [2020-07-21 12:15:15,241 INFO L268 CegarLoopResult]: For program point reset_time_eventsEXIT(lines 351 368) no Hoare annotation was computed. [2020-07-21 12:15:15,241 INFO L268 CegarLoopResult]: For program point L360-1(lines 351 368) no Hoare annotation was computed. [2020-07-21 12:15:15,241 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))) [2020-07-21 12:15:15,241 INFO L268 CegarLoopResult]: For program point L355-1(lines 354 367) no Hoare annotation was computed. [2020-07-21 12:15:15,241 INFO L268 CegarLoopResult]: For program point L225(lines 225 231) no Hoare annotation was computed. [2020-07-21 12:15:15,242 INFO L268 CegarLoopResult]: For program point L192(lines 192 196) no Hoare annotation was computed. [2020-07-21 12:15:15,242 INFO L268 CegarLoopResult]: For program point do_read_cEXIT(lines 185 243) no Hoare annotation was computed. [2020-07-21 12:15:15,242 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)))))) [2020-07-21 12:15:15,242 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))))) [2020-07-21 12:15:15,242 INFO L268 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-07-21 12:15:15,242 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)|))) [2020-07-21 12:15:15,242 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))))) [2020-07-21 12:15:15,242 INFO L268 CegarLoopResult]: For program point L224(lines 224 236) no Hoare annotation was computed. [2020-07-21 12:15:15,242 INFO L268 CegarLoopResult]: For program point L189(lines 189 197) no Hoare annotation was computed. [2020-07-21 12:15:15,242 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)))) [2020-07-21 12:15:15,242 INFO L268 CegarLoopResult]: For program point L208-1(lines 208 218) no Hoare annotation was computed. [2020-07-21 12:15:15,243 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))))) [2020-07-21 12:15:15,243 INFO L268 CegarLoopResult]: For program point init_modelFINAL(lines 525 543) no Hoare annotation was computed. [2020-07-21 12:15:15,243 INFO L268 CegarLoopResult]: For program point init_modelEXIT(lines 525 543) no Hoare annotation was computed. [2020-07-21 12:15:15,243 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))) [2020-07-21 12:15:15,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 12:15:15 BoogieIcfgContainer [2020-07-21 12:15:15,265 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 12:15:15,267 INFO L168 Benchmark]: Toolchain (without parser) took 14328.84 ms. Allocated memory was 145.8 MB in the beginning and 525.9 MB in the end (delta: 380.1 MB). Free memory was 101.6 MB in the beginning and 453.6 MB in the end (delta: -352.0 MB). Peak memory consumption was 325.9 MB. Max. memory is 7.1 GB. [2020-07-21 12:15:15,267 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 145.8 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-21 12:15:15,268 INFO L168 Benchmark]: CACSL2BoogieTranslator took 425.22 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 101.2 MB in the beginning and 182.1 MB in the end (delta: -80.9 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2020-07-21 12:15:15,269 INFO L168 Benchmark]: Boogie Preprocessor took 47.30 ms. Allocated memory is still 203.4 MB. Free memory was 182.1 MB in the beginning and 179.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. [2020-07-21 12:15:15,270 INFO L168 Benchmark]: RCFGBuilder took 636.79 ms. Allocated memory is still 203.4 MB. Free memory was 179.1 MB in the beginning and 143.5 MB in the end (delta: 35.6 MB). Peak memory consumption was 35.6 MB. Max. memory is 7.1 GB. [2020-07-21 12:15:15,270 INFO L168 Benchmark]: TraceAbstraction took 13212.62 ms. Allocated memory was 203.4 MB in the beginning and 525.9 MB in the end (delta: 322.4 MB). Free memory was 142.8 MB in the beginning and 453.6 MB in the end (delta: -310.8 MB). Peak memory consumption was 309.5 MB. Max. memory is 7.1 GB. [2020-07-21 12:15:15,274 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 145.8 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 425.22 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 101.2 MB in the beginning and 182.1 MB in the end (delta: -80.9 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 47.30 ms. Allocated memory is still 203.4 MB. Free memory was 182.1 MB in the beginning and 179.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 636.79 ms. Allocated memory is still 203.4 MB. Free memory was 179.1 MB in the beginning and 143.5 MB in the end (delta: 35.6 MB). Peak memory consumption was 35.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13212.62 ms. Allocated memory was 203.4 MB in the beginning and 525.9 MB in the end (delta: 322.4 MB). Free memory was 142.8 MB in the beginning and 453.6 MB in the end (delta: -310.8 MB). Peak memory consumption was 309.5 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: 5.9s, OverallIterations: 8, TraceHistogramMax: 5, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 7.1s, 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: 0.8s AutomataMinimizationTime, 8 MinimizatonAttempts, 44 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 63 LocationsWithAnnotation, 5202 PreInvPairs, 7120 NumberOfFragments, 1713 HoareAnnotationTreeSize, 5202 FomulaSimplifications, 19966 FormulaSimplificationTreeSizeReduction, 2.6s HoareSimplificationTime, 63 FomulaSimplificationsInter, 35528 FormulaSimplificationTreeSizeReductionInter, 4.2s 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...