/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product58.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 06:36:05,710 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 06:36:05,712 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 06:36:05,768 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 06:36:05,768 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 06:36:05,769 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 06:36:05,770 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 06:36:05,771 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 06:36:05,772 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 06:36:05,772 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 06:36:05,773 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 06:36:05,775 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 06:36:05,775 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 06:36:05,780 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 06:36:05,781 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 06:36:05,782 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 06:36:05,783 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 06:36:05,784 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 06:36:05,788 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 06:36:05,789 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 06:36:05,790 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 06:36:05,804 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 06:36:05,804 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 06:36:05,805 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 06:36:05,812 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 06:36:05,813 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 06:36:05,813 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 06:36:05,814 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 06:36:05,814 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 06:36:05,815 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 06:36:05,815 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 06:36:05,815 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 06:36:05,816 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 06:36:05,816 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 06:36:05,817 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 06:36:05,817 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 06:36:05,818 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 06:36:05,818 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 06:36:05,818 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 06:36:05,819 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 06:36:05,819 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 06:36:05,820 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-01-10 06:36:05,845 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 06:36:05,845 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 06:36:05,846 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 06:36:05,846 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 06:36:05,847 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 06:36:05,847 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 06:36:05,847 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 06:36:05,847 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 06:36:05,847 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 06:36:05,847 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 06:36:05,848 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 06:36:05,848 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 06:36:05,848 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 06:36:05,848 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 06:36:05,848 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 06:36:05,849 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 06:36:05,849 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 06:36:05,849 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 06:36:05,849 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 06:36:05,849 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 06:36:05,849 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 06:36:05,849 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 06:36:05,849 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 06:36:05,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 06:36:05,850 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 06:36:05,850 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 06:36:05,851 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 06:36:05,851 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 06:36:05,851 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 06:36:05,851 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 06:36:05,851 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 06:36:05,851 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 06:36:05,851 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 06:36:05,851 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 06:36:06,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 06:36:06,032 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 06:36:06,034 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 06:36:06,035 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 06:36:06,037 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 06:36:06,037 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product58.cil.c [2022-01-10 06:36:06,123 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b7795b12/de620e0b2ece4525843e26382a31cfd4/FLAG530739ebb [2022-01-10 06:36:06,505 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 06:36:06,506 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product58.cil.c [2022-01-10 06:36:06,512 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b7795b12/de620e0b2ece4525843e26382a31cfd4/FLAG530739ebb [2022-01-10 06:36:06,521 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b7795b12/de620e0b2ece4525843e26382a31cfd4 [2022-01-10 06:36:06,522 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 06:36:06,523 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 06:36:06,525 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 06:36:06,525 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 06:36:06,527 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 06:36:06,528 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:36:06" (1/1) ... [2022-01-10 06:36:06,529 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68f3e0bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:36:06, skipping insertion in model container [2022-01-10 06:36:06,529 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:36:06" (1/1) ... [2022-01-10 06:36:06,533 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 06:36:06,565 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 06:36:06,776 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product58.cil.c[14935,14948] [2022-01-10 06:36:06,791 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:36:06,799 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 06:36:06,804 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 06:36:06,839 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product58.cil.c[14935,14948] [2022-01-10 06:36:06,851 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:36:06,855 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 06:36:06,887 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product58.cil.c[14935,14948] [2022-01-10 06:36:06,895 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:36:06,908 INFO L208 MainTranslator]: Completed translation [2022-01-10 06:36:06,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:36:06 WrapperNode [2022-01-10 06:36:06,909 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 06:36:06,909 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 06:36:06,910 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 06:36:06,910 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 06:36:06,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:36:06" (1/1) ... [2022-01-10 06:36:06,939 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:36:06" (1/1) ... [2022-01-10 06:36:06,959 INFO L137 Inliner]: procedures = 61, calls = 160, calls flagged for inlining = 28, calls inlined = 25, statements flattened = 274 [2022-01-10 06:36:06,959 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 06:36:06,959 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 06:36:06,959 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 06:36:06,960 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 06:36:06,965 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:36:06" (1/1) ... [2022-01-10 06:36:06,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:36:06" (1/1) ... [2022-01-10 06:36:06,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:36:06" (1/1) ... [2022-01-10 06:36:06,967 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:36:06" (1/1) ... [2022-01-10 06:36:06,973 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:36:06" (1/1) ... [2022-01-10 06:36:06,976 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:36:06" (1/1) ... [2022-01-10 06:36:06,977 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:36:06" (1/1) ... [2022-01-10 06:36:06,979 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 06:36:06,980 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 06:36:06,980 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 06:36:06,980 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 06:36:06,985 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:36:06" (1/1) ... [2022-01-10 06:36:06,992 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 06:36:07,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 06:36:07,021 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 06:36:07,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 06:36:07,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 06:36:07,057 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-01-10 06:36:07,057 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-01-10 06:36:07,058 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-01-10 06:36:07,058 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-01-10 06:36:07,059 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-01-10 06:36:07,059 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-01-10 06:36:07,059 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-01-10 06:36:07,059 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-01-10 06:36:07,059 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-01-10 06:36:07,059 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-01-10 06:36:07,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 06:36:07,059 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2022-01-10 06:36:07,060 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2022-01-10 06:36:07,060 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-01-10 06:36:07,060 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-01-10 06:36:07,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 06:36:07,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 06:36:07,131 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 06:36:07,132 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 06:36:07,404 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 06:36:07,409 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 06:36:07,409 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-10 06:36:07,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:36:07 BoogieIcfgContainer [2022-01-10 06:36:07,419 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 06:36:07,420 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 06:36:07,420 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 06:36:07,423 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 06:36:07,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:36:06" (1/3) ... [2022-01-10 06:36:07,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@146d81cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:36:07, skipping insertion in model container [2022-01-10 06:36:07,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:36:06" (2/3) ... [2022-01-10 06:36:07,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@146d81cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:36:07, skipping insertion in model container [2022-01-10 06:36:07,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:36:07" (3/3) ... [2022-01-10 06:36:07,425 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product58.cil.c [2022-01-10 06:36:07,429 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 06:36:07,429 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 06:36:07,462 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 06:36:07,467 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 06:36:07,467 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 06:36:07,479 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 76 states have (on average 1.368421052631579) internal successors, (104), 84 states have internal predecessors, (104), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2022-01-10 06:36:07,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-01-10 06:36:07,486 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:36:07,486 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-10 06:36:07,487 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:36:07,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:36:07,490 INFO L85 PathProgramCache]: Analyzing trace with hash -716350399, now seen corresponding path program 1 times [2022-01-10 06:36:07,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:36:07,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2001954723] [2022-01-10 06:36:07,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:36:07,499 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:36:07,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:36:07,501 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:36:07,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-01-10 06:36:07,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:36:07,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 1 conjunts are in the unsatisfiable core [2022-01-10 06:36:07,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:36:07,703 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-10 06:36:07,703 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:36:07,704 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:36:07,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2001954723] [2022-01-10 06:36:07,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2001954723] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:36:07,705 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:36:07,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 06:36:07,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104707408] [2022-01-10 06:36:07,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:36:07,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 06:36:07,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:36:07,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 06:36:07,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 06:36:07,742 INFO L87 Difference]: Start difference. First operand has 97 states, 76 states have (on average 1.368421052631579) internal successors, (104), 84 states have internal predecessors, (104), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-01-10 06:36:07,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:36:07,789 INFO L93 Difference]: Finished difference Result 185 states and 250 transitions. [2022-01-10 06:36:07,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 06:36:07,790 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2022-01-10 06:36:07,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:36:07,798 INFO L225 Difference]: With dead ends: 185 [2022-01-10 06:36:07,799 INFO L226 Difference]: Without dead ends: 88 [2022-01-10 06:36:07,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 06:36:07,805 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:36:07,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:36:07,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-01-10 06:36:07,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2022-01-10 06:36:07,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 69 states have (on average 1.3043478260869565) internal successors, (90), 76 states have internal predecessors, (90), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2022-01-10 06:36:07,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 113 transitions. [2022-01-10 06:36:07,850 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 113 transitions. Word has length 32 [2022-01-10 06:36:07,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:36:07,850 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 113 transitions. [2022-01-10 06:36:07,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-01-10 06:36:07,851 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 113 transitions. [2022-01-10 06:36:07,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-01-10 06:36:07,855 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:36:07,855 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-10 06:36:07,866 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-01-10 06:36:08,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:36:08,064 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:36:08,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:36:08,064 INFO L85 PathProgramCache]: Analyzing trace with hash 407802526, now seen corresponding path program 1 times [2022-01-10 06:36:08,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:36:08,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [803988577] [2022-01-10 06:36:08,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:36:08,065 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:36:08,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:36:08,067 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:36:08,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-01-10 06:36:08,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:36:08,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:36:08,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:36:08,231 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-10 06:36:08,231 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:36:08,232 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:36:08,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [803988577] [2022-01-10 06:36:08,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [803988577] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:36:08,232 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:36:08,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:36:08,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146045013] [2022-01-10 06:36:08,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:36:08,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:36:08,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:36:08,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:36:08,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:36:08,243 INFO L87 Difference]: Start difference. First operand 88 states and 113 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-01-10 06:36:08,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:36:08,260 INFO L93 Difference]: Finished difference Result 140 states and 180 transitions. [2022-01-10 06:36:08,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:36:08,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2022-01-10 06:36:08,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:36:08,261 INFO L225 Difference]: With dead ends: 140 [2022-01-10 06:36:08,261 INFO L226 Difference]: Without dead ends: 79 [2022-01-10 06:36:08,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:36:08,263 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 13 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:36:08,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 183 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:36:08,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-01-10 06:36:08,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2022-01-10 06:36:08,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 63 states have (on average 1.3174603174603174) internal successors, (83), 70 states have internal predecessors, (83), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2022-01-10 06:36:08,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 101 transitions. [2022-01-10 06:36:08,269 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 101 transitions. Word has length 33 [2022-01-10 06:36:08,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:36:08,269 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 101 transitions. [2022-01-10 06:36:08,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-01-10 06:36:08,270 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 101 transitions. [2022-01-10 06:36:08,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-01-10 06:36:08,271 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:36:08,271 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-10 06:36:08,277 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-01-10 06:36:08,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:36:08,472 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:36:08,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:36:08,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1999351370, now seen corresponding path program 1 times [2022-01-10 06:36:08,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:36:08,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1955518732] [2022-01-10 06:36:08,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:36:08,473 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:36:08,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:36:08,484 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:36:08,486 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-01-10 06:36:08,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:36:08,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:36:08,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:36:08,621 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:36:08,622 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:36:08,622 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:36:08,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1955518732] [2022-01-10 06:36:08,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1955518732] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:36:08,624 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:36:08,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:36:08,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389637279] [2022-01-10 06:36:08,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:36:08,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:36:08,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:36:08,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:36:08,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:36:08,628 INFO L87 Difference]: Start difference. First operand 79 states and 101 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-01-10 06:36:08,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:36:08,659 INFO L93 Difference]: Finished difference Result 150 states and 195 transitions. [2022-01-10 06:36:08,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:36:08,660 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 38 [2022-01-10 06:36:08,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:36:08,663 INFO L225 Difference]: With dead ends: 150 [2022-01-10 06:36:08,663 INFO L226 Difference]: Without dead ends: 79 [2022-01-10 06:36:08,666 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:36:08,666 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 88 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:36:08,667 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 99 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:36:08,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-01-10 06:36:08,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2022-01-10 06:36:08,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 63 states have (on average 1.3015873015873016) internal successors, (82), 70 states have internal predecessors, (82), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2022-01-10 06:36:08,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 100 transitions. [2022-01-10 06:36:08,674 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 100 transitions. Word has length 38 [2022-01-10 06:36:08,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:36:08,675 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 100 transitions. [2022-01-10 06:36:08,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-01-10 06:36:08,675 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 100 transitions. [2022-01-10 06:36:08,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-10 06:36:08,676 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:36:08,676 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-10 06:36:08,682 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-01-10 06:36:08,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:36:08,880 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:36:08,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:36:08,880 INFO L85 PathProgramCache]: Analyzing trace with hash 879947394, now seen corresponding path program 1 times [2022-01-10 06:36:08,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:36:08,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1650918994] [2022-01-10 06:36:08,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:36:08,881 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:36:08,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:36:08,882 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:36:08,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-01-10 06:36:08,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:36:08,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 06:36:08,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:36:09,034 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:36:09,034 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:36:09,034 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:36:09,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1650918994] [2022-01-10 06:36:09,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1650918994] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:36:09,034 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:36:09,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 06:36:09,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153411801] [2022-01-10 06:36:09,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:36:09,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:36:09,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:36:09,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:36:09,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:36:09,036 INFO L87 Difference]: Start difference. First operand 79 states and 100 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-01-10 06:36:09,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:36:09,089 INFO L93 Difference]: Finished difference Result 199 states and 258 transitions. [2022-01-10 06:36:09,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:36:09,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 46 [2022-01-10 06:36:09,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:36:09,091 INFO L225 Difference]: With dead ends: 199 [2022-01-10 06:36:09,091 INFO L226 Difference]: Without dead ends: 128 [2022-01-10 06:36:09,094 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:36:09,098 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 56 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:36:09,099 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 176 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:36:09,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2022-01-10 06:36:09,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 126. [2022-01-10 06:36:09,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 99 states have (on average 1.2828282828282829) internal successors, (127), 107 states have internal predecessors, (127), 14 states have call successors, (14), 12 states have call predecessors, (14), 12 states have return successors, (18), 14 states have call predecessors, (18), 14 states have call successors, (18) [2022-01-10 06:36:09,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 159 transitions. [2022-01-10 06:36:09,120 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 159 transitions. Word has length 46 [2022-01-10 06:36:09,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:36:09,120 INFO L470 AbstractCegarLoop]: Abstraction has 126 states and 159 transitions. [2022-01-10 06:36:09,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-01-10 06:36:09,120 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 159 transitions. [2022-01-10 06:36:09,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-10 06:36:09,123 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:36:09,123 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-10 06:36:09,130 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-01-10 06:36:09,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:36:09,330 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:36:09,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:36:09,331 INFO L85 PathProgramCache]: Analyzing trace with hash -2106872253, now seen corresponding path program 1 times [2022-01-10 06:36:09,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:36:09,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [260741222] [2022-01-10 06:36:09,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:36:09,332 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:36:09,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:36:09,333 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:36:09,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-01-10 06:36:09,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:36:09,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-10 06:36:09,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:36:09,542 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-10 06:36:09,542 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:36:09,542 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:36:09,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [260741222] [2022-01-10 06:36:09,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [260741222] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:36:09,543 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:36:09,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 06:36:09,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355952758] [2022-01-10 06:36:09,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:36:09,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 06:36:09,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:36:09,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 06:36:09,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-10 06:36:09,545 INFO L87 Difference]: Start difference. First operand 126 states and 159 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-01-10 06:36:09,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:36:09,742 INFO L93 Difference]: Finished difference Result 280 states and 355 transitions. [2022-01-10 06:36:09,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-10 06:36:09,743 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 54 [2022-01-10 06:36:09,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:36:09,747 INFO L225 Difference]: With dead ends: 280 [2022-01-10 06:36:09,747 INFO L226 Difference]: Without dead ends: 162 [2022-01-10 06:36:09,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2022-01-10 06:36:09,748 INFO L933 BasicCegarLoop]: 102 mSDtfsCounter, 112 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 06:36:09,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 442 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 06:36:09,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-01-10 06:36:09,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 148. [2022-01-10 06:36:09,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 116 states have (on average 1.2586206896551724) internal successors, (146), 124 states have internal predecessors, (146), 16 states have call successors, (16), 12 states have call predecessors, (16), 15 states have return successors, (23), 17 states have call predecessors, (23), 16 states have call successors, (23) [2022-01-10 06:36:09,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 185 transitions. [2022-01-10 06:36:09,775 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 185 transitions. Word has length 54 [2022-01-10 06:36:09,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:36:09,776 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 185 transitions. [2022-01-10 06:36:09,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-01-10 06:36:09,776 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 185 transitions. [2022-01-10 06:36:09,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-10 06:36:09,777 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:36:09,777 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-10 06:36:09,787 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-01-10 06:36:09,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:36:09,984 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:36:09,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:36:09,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1055316791, now seen corresponding path program 1 times [2022-01-10 06:36:09,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:36:09,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1311136183] [2022-01-10 06:36:09,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:36:09,985 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:36:09,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:36:09,986 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:36:09,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-01-10 06:36:10,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:36:10,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 5 conjunts are in the unsatisfiable core [2022-01-10 06:36:10,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:36:10,133 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:36:10,134 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:36:10,134 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:36:10,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1311136183] [2022-01-10 06:36:10,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1311136183] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:36:10,135 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:36:10,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:36:10,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061092227] [2022-01-10 06:36:10,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:36:10,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:36:10,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:36:10,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:36:10,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:36:10,137 INFO L87 Difference]: Start difference. First operand 148 states and 185 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-01-10 06:36:10,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:36:10,166 INFO L93 Difference]: Finished difference Result 296 states and 382 transitions. [2022-01-10 06:36:10,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 06:36:10,167 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 56 [2022-01-10 06:36:10,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:36:10,170 INFO L225 Difference]: With dead ends: 296 [2022-01-10 06:36:10,170 INFO L226 Difference]: Without dead ends: 156 [2022-01-10 06:36:10,171 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 06:36:10,172 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 10 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:36:10,172 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 389 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:36:10,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2022-01-10 06:36:10,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 151. [2022-01-10 06:36:10,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 119 states have (on average 1.2521008403361344) internal successors, (149), 127 states have internal predecessors, (149), 16 states have call successors, (16), 12 states have call predecessors, (16), 15 states have return successors, (23), 17 states have call predecessors, (23), 16 states have call successors, (23) [2022-01-10 06:36:10,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 188 transitions. [2022-01-10 06:36:10,184 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 188 transitions. Word has length 56 [2022-01-10 06:36:10,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:36:10,185 INFO L470 AbstractCegarLoop]: Abstraction has 151 states and 188 transitions. [2022-01-10 06:36:10,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-01-10 06:36:10,185 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 188 transitions. [2022-01-10 06:36:10,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-10 06:36:10,186 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:36:10,186 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-10 06:36:10,195 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-01-10 06:36:10,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:36:10,399 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:36:10,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:36:10,400 INFO L85 PathProgramCache]: Analyzing trace with hash -750121543, now seen corresponding path program 1 times [2022-01-10 06:36:10,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:36:10,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [600527056] [2022-01-10 06:36:10,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:36:10,400 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:36:10,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:36:10,402 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:36:10,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-01-10 06:36:10,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:36:10,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 06:36:10,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:36:10,523 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:36:10,523 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:36:10,523 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:36:10,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [600527056] [2022-01-10 06:36:10,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [600527056] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:36:10,524 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:36:10,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 06:36:10,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34639645] [2022-01-10 06:36:10,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:36:10,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 06:36:10,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:36:10,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 06:36:10,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 06:36:10,525 INFO L87 Difference]: Start difference. First operand 151 states and 188 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-01-10 06:36:10,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:36:10,543 INFO L93 Difference]: Finished difference Result 302 states and 387 transitions. [2022-01-10 06:36:10,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 06:36:10,546 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 56 [2022-01-10 06:36:10,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:36:10,547 INFO L225 Difference]: With dead ends: 302 [2022-01-10 06:36:10,547 INFO L226 Difference]: Without dead ends: 159 [2022-01-10 06:36:10,547 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:36:10,548 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 11 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:36:10,548 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 294 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:36:10,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2022-01-10 06:36:10,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 153. [2022-01-10 06:36:10,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 121 states have (on average 1.2479338842975207) internal successors, (151), 129 states have internal predecessors, (151), 16 states have call successors, (16), 12 states have call predecessors, (16), 15 states have return successors, (23), 17 states have call predecessors, (23), 16 states have call successors, (23) [2022-01-10 06:36:10,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 190 transitions. [2022-01-10 06:36:10,554 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 190 transitions. Word has length 56 [2022-01-10 06:36:10,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:36:10,554 INFO L470 AbstractCegarLoop]: Abstraction has 153 states and 190 transitions. [2022-01-10 06:36:10,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-01-10 06:36:10,554 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 190 transitions. [2022-01-10 06:36:10,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-10 06:36:10,554 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:36:10,555 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-10 06:36:10,561 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-01-10 06:36:10,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:36:10,761 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:36:10,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:36:10,761 INFO L85 PathProgramCache]: Analyzing trace with hash -609572933, now seen corresponding path program 1 times [2022-01-10 06:36:10,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:36:10,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1877110611] [2022-01-10 06:36:10,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:36:10,762 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:36:10,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:36:10,763 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:36:10,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-01-10 06:36:10,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:36:10,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 06:36:10,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:36:10,882 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:36:10,882 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:36:10,882 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:36:10,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1877110611] [2022-01-10 06:36:10,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1877110611] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:36:10,882 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:36:10,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 06:36:10,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695129928] [2022-01-10 06:36:10,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:36:10,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:36:10,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:36:10,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:36:10,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:36:10,883 INFO L87 Difference]: Start difference. First operand 153 states and 190 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-01-10 06:36:10,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:36:10,908 INFO L93 Difference]: Finished difference Result 349 states and 438 transitions. [2022-01-10 06:36:10,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:36:10,908 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 56 [2022-01-10 06:36:10,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:36:10,909 INFO L225 Difference]: With dead ends: 349 [2022-01-10 06:36:10,909 INFO L226 Difference]: Without dead ends: 204 [2022-01-10 06:36:10,910 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:36:10,910 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 34 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:36:10,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 191 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:36:10,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-01-10 06:36:10,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2022-01-10 06:36:10,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 160 states have (on average 1.225) internal successors, (196), 169 states have internal predecessors, (196), 23 states have call successors, (23), 18 states have call predecessors, (23), 20 states have return successors, (30), 23 states have call predecessors, (30), 23 states have call successors, (30) [2022-01-10 06:36:10,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 249 transitions. [2022-01-10 06:36:10,918 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 249 transitions. Word has length 56 [2022-01-10 06:36:10,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:36:10,918 INFO L470 AbstractCegarLoop]: Abstraction has 204 states and 249 transitions. [2022-01-10 06:36:10,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-01-10 06:36:10,919 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 249 transitions. [2022-01-10 06:36:10,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-10 06:36:10,919 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:36:10,920 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-10 06:36:10,933 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-01-10 06:36:11,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:36:11,127 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:36:11,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:36:11,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1449050389, now seen corresponding path program 1 times [2022-01-10 06:36:11,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:36:11,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [539369488] [2022-01-10 06:36:11,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:36:11,128 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:36:11,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:36:11,129 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:36:11,130 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-01-10 06:36:11,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:36:11,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-10 06:36:11,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:36:11,339 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:36:11,339 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:36:11,339 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:36:11,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [539369488] [2022-01-10 06:36:11,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [539369488] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:36:11,340 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:36:11,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 06:36:11,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535408347] [2022-01-10 06:36:11,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:36:11,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 06:36:11,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:36:11,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 06:36:11,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-10 06:36:11,341 INFO L87 Difference]: Start difference. First operand 204 states and 249 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-01-10 06:36:11,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:36:11,689 INFO L93 Difference]: Finished difference Result 675 states and 863 transitions. [2022-01-10 06:36:11,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 06:36:11,690 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 60 [2022-01-10 06:36:11,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:36:11,692 INFO L225 Difference]: With dead ends: 675 [2022-01-10 06:36:11,692 INFO L226 Difference]: Without dead ends: 530 [2022-01-10 06:36:11,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2022-01-10 06:36:11,693 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 246 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 06:36:11,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [257 Valid, 637 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 06:36:11,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2022-01-10 06:36:11,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 450. [2022-01-10 06:36:11,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 351 states have (on average 1.2193732193732194) internal successors, (428), 374 states have internal predecessors, (428), 52 states have call successors, (52), 39 states have call predecessors, (52), 46 states have return successors, (72), 52 states have call predecessors, (72), 52 states have call successors, (72) [2022-01-10 06:36:11,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 552 transitions. [2022-01-10 06:36:11,713 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 552 transitions. Word has length 60 [2022-01-10 06:36:11,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:36:11,713 INFO L470 AbstractCegarLoop]: Abstraction has 450 states and 552 transitions. [2022-01-10 06:36:11,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-01-10 06:36:11,713 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 552 transitions. [2022-01-10 06:36:11,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-01-10 06:36:11,714 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:36:11,714 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2022-01-10 06:36:11,723 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-01-10 06:36:11,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:36:11,919 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:36:11,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:36:11,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1477759876, now seen corresponding path program 1 times [2022-01-10 06:36:11,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:36:11,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1008278464] [2022-01-10 06:36:11,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:36:11,920 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:36:11,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:36:11,928 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:36:11,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-01-10 06:36:11,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:36:11,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 13 conjunts are in the unsatisfiable core [2022-01-10 06:36:11,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:36:12,183 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 17 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-01-10 06:36:12,183 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 06:36:12,483 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-01-10 06:36:12,483 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:36:12,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1008278464] [2022-01-10 06:36:12,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1008278464] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 06:36:12,483 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 06:36:12,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 13 [2022-01-10 06:36:12,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203416608] [2022-01-10 06:36:12,484 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 06:36:12,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-10 06:36:12,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:36:12,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-10 06:36:12,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-01-10 06:36:12,485 INFO L87 Difference]: Start difference. First operand 450 states and 552 transitions. Second operand has 13 states, 13 states have (on average 9.615384615384615) internal successors, (125), 12 states have internal predecessors, (125), 8 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (16), 6 states have call predecessors, (16), 8 states have call successors, (16) [2022-01-10 06:36:13,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:36:13,454 INFO L93 Difference]: Finished difference Result 1437 states and 1864 transitions. [2022-01-10 06:36:13,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-10 06:36:13,455 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.615384615384615) internal successors, (125), 12 states have internal predecessors, (125), 8 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (16), 6 states have call predecessors, (16), 8 states have call successors, (16) Word has length 102 [2022-01-10 06:36:13,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:36:13,459 INFO L225 Difference]: With dead ends: 1437 [2022-01-10 06:36:13,459 INFO L226 Difference]: Without dead ends: 1044 [2022-01-10 06:36:13,460 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 193 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=227, Invalid=765, Unknown=0, NotChecked=0, Total=992 [2022-01-10 06:36:13,461 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 829 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 1117 mSolverCounterSat, 317 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 845 SdHoareTripleChecker+Valid, 1301 SdHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 317 IncrementalHoareTripleChecker+Valid, 1117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 06:36:13,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [845 Valid, 1301 Invalid, 1434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [317 Valid, 1117 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-10 06:36:13,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2022-01-10 06:36:13,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 893. [2022-01-10 06:36:13,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 893 states, 695 states have (on average 1.2316546762589928) internal successors, (856), 736 states have internal predecessors, (856), 106 states have call successors, (106), 71 states have call predecessors, (106), 91 states have return successors, (209), 115 states have call predecessors, (209), 106 states have call successors, (209) [2022-01-10 06:36:13,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 893 states to 893 states and 1171 transitions. [2022-01-10 06:36:13,509 INFO L78 Accepts]: Start accepts. Automaton has 893 states and 1171 transitions. Word has length 102 [2022-01-10 06:36:13,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:36:13,510 INFO L470 AbstractCegarLoop]: Abstraction has 893 states and 1171 transitions. [2022-01-10 06:36:13,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.615384615384615) internal successors, (125), 12 states have internal predecessors, (125), 8 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (16), 6 states have call predecessors, (16), 8 states have call successors, (16) [2022-01-10 06:36:13,510 INFO L276 IsEmpty]: Start isEmpty. Operand 893 states and 1171 transitions. [2022-01-10 06:36:13,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-01-10 06:36:13,511 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:36:13,511 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2022-01-10 06:36:13,520 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-01-10 06:36:13,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:36:13,718 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:36:13,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:36:13,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1611773382, now seen corresponding path program 1 times [2022-01-10 06:36:13,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:36:13,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1741820474] [2022-01-10 06:36:13,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:36:13,720 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:36:13,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:36:13,721 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:36:13,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-01-10 06:36:13,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:36:13,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 5 conjunts are in the unsatisfiable core [2022-01-10 06:36:13,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:36:13,896 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-10 06:36:13,897 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:36:13,897 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:36:13,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1741820474] [2022-01-10 06:36:13,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1741820474] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:36:13,897 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:36:13,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:36:13,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75471976] [2022-01-10 06:36:13,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:36:13,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:36:13,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:36:13,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:36:13,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:36:13,898 INFO L87 Difference]: Start difference. First operand 893 states and 1171 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-01-10 06:36:13,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:36:13,924 INFO L93 Difference]: Finished difference Result 1072 states and 1382 transitions. [2022-01-10 06:36:13,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:36:13,924 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 102 [2022-01-10 06:36:13,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:36:13,925 INFO L225 Difference]: With dead ends: 1072 [2022-01-10 06:36:13,925 INFO L226 Difference]: Without dead ends: 0 [2022-01-10 06:36:13,927 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 06:36:13,928 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 36 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:36:13,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 349 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:36:13,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-10 06:36:13,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-10 06:36:13,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:36:13,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-10 06:36:13,929 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 102 [2022-01-10 06:36:13,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:36:13,929 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-10 06:36:13,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-01-10 06:36:13,929 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-10 06:36:13,929 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-10 06:36:13,931 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 06:36:13,938 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-01-10 06:36:14,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:36:14,140 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-10 06:36:15,594 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 790 796) no Hoare annotation was computed. [2022-01-10 06:36:15,595 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 790 796) the Hoare annotation is: true [2022-01-10 06:36:15,595 INFO L861 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 84 95) the Hoare annotation is: true [2022-01-10 06:36:15,595 INFO L858 garLoopResultBuilder]: For program point L88-1(lines 84 95) no Hoare annotation was computed. [2022-01-10 06:36:15,595 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 84 95) no Hoare annotation was computed. [2022-01-10 06:36:15,595 INFO L858 garLoopResultBuilder]: For program point L64(lines 64 68) no Hoare annotation was computed. [2022-01-10 06:36:15,595 INFO L858 garLoopResultBuilder]: For program point L770-2(lines 766 788) no Hoare annotation was computed. [2022-01-10 06:36:15,595 INFO L858 garLoopResultBuilder]: For program point L832(lines 832 840) no Hoare annotation was computed. [2022-01-10 06:36:15,595 INFO L854 garLoopResultBuilder]: At program point L192(line 192) the Hoare annotation is: (let ((.cse1 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse2 (not (= ~systemActive~0 (_ bv1 32)))) (.cse3 (not (= |old(~pumpRunning~0)| (_ bv0 32))))) (and (or .cse0 (and (= ~waterLevel~0 (_ bv1 32)) .cse1) .cse2) (or .cse2 .cse3 (not (= (_ bv1 32) |old(~waterLevel~0)|)) (and .cse1 (= ~waterLevel~0 |old(~waterLevel~0)|))) (or .cse0 .cse2 .cse3))) [2022-01-10 06:36:15,595 INFO L858 garLoopResultBuilder]: For program point L192-1(line 192) no Hoare annotation was computed. [2022-01-10 06:36:15,595 INFO L854 garLoopResultBuilder]: At program point L64-2(lines 60 71) the Hoare annotation is: (let ((.cse0 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse1 (not (= ~systemActive~0 (_ bv1 32)))) (.cse2 (not (= |old(~pumpRunning~0)| (_ bv0 32))))) (and (or .cse0 .cse1 (and (= |old(~pumpRunning~0)| ~pumpRunning~0) (= ~waterLevel~0 (_ bv1 32)))) (or .cse1 .cse2 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (or .cse0 .cse1 .cse2))) [2022-01-10 06:36:15,595 INFO L858 garLoopResultBuilder]: For program point L828(lines 828 845) no Hoare annotation was computed. [2022-01-10 06:36:15,595 INFO L854 garLoopResultBuilder]: At program point L973(lines 958 976) the Hoare annotation is: (let ((.cse0 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse1 (not (= ~systemActive~0 (_ bv1 32)))) (.cse2 (not (= |old(~pumpRunning~0)| (_ bv0 32))))) (and (or .cse0 .cse1 (and (= (_ bv0 32) |timeShift_isLowWaterLevel_~tmp~10#1|) (= |timeShift_isLowWaterSensorDry_#res#1| (_ bv0 32)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv1 32) |timeShift_isLowWaterLevel_~tmp___0~3#1|) (= |timeShift_isLowWaterLevel_#res#1| (_ bv1 32)))) (or .cse1 .cse2 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (or .cse0 .cse1 .cse2))) [2022-01-10 06:36:15,596 INFO L858 garLoopResultBuilder]: For program point timeShiftFINAL(lines 763 789) no Hoare annotation was computed. [2022-01-10 06:36:15,596 INFO L854 garLoopResultBuilder]: At program point L156(lines 151 159) the Hoare annotation is: (let ((.cse0 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse1 (not (= ~systemActive~0 (_ bv1 32)))) (.cse2 (not (= |old(~pumpRunning~0)| (_ bv0 32))))) (and (or .cse0 .cse1 (and (= |timeShift_isLowWaterSensorDry_#res#1| (_ bv0 32)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (= ~waterLevel~0 (_ bv1 32)))) (or .cse1 .cse2 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (or .cse0 .cse1 .cse2))) [2022-01-10 06:36:15,596 INFO L854 garLoopResultBuilder]: At program point L177(line 177) the Hoare annotation is: (let ((.cse1 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse0 (not (= ~systemActive~0 (_ bv1 32))))) (and (or .cse0 (not (= |old(~pumpRunning~0)| (_ bv0 32))) (not (= (_ bv1 32) |old(~waterLevel~0)|)) (and (= (_ bv0 32) ~pumpRunning~0) .cse1)) (or (not (= (_ bv2 32) |old(~waterLevel~0)|)) (and (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1) .cse0))) [2022-01-10 06:36:15,596 INFO L858 garLoopResultBuilder]: For program point L177-1(line 177) no Hoare annotation was computed. [2022-01-10 06:36:15,596 INFO L858 garLoopResultBuilder]: For program point L685(line 685) no Hoare annotation was computed. [2022-01-10 06:36:15,596 INFO L854 garLoopResultBuilder]: At program point L838(line 838) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv1 32))))) (and (or .cse0 (not (= |old(~pumpRunning~0)| (_ bv0 32))) (not (= (_ bv1 32) |old(~waterLevel~0)|))) (or (not (= (_ bv2 32) |old(~waterLevel~0)|)) .cse0))) [2022-01-10 06:36:15,596 INFO L858 garLoopResultBuilder]: For program point L194(lines 194 204) no Hoare annotation was computed. [2022-01-10 06:36:15,596 INFO L858 garLoopResultBuilder]: For program point L190(lines 190 207) no Hoare annotation was computed. [2022-01-10 06:36:15,596 INFO L854 garLoopResultBuilder]: At program point L190-1(lines 182 210) the Hoare annotation is: (let ((.cse5 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse6 (= ~systemActive~0 (_ bv1 32)))) (let ((.cse1 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse2 (not .cse6)) (.cse4 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse3 (and (= |timeShift_getWaterLevel_#res#1| (_ bv2 32)) .cse6 (= (_ bv2 32) |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1|) .cse5))) (and (or .cse0 (and (= ~waterLevel~0 (_ bv1 32)) .cse1) .cse2 .cse3) (or .cse2 .cse4 (not (= (_ bv1 32) |old(~waterLevel~0)|)) (and .cse1 .cse5)) (or .cse0 .cse2 .cse4 .cse3)))) [2022-01-10 06:36:15,596 INFO L854 garLoopResultBuilder]: At program point L880(lines 875 882) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse2 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse0 (not (= ~systemActive~0 (_ bv1 32))))) (and (or .cse0 .cse1 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (or .cse2 .cse0 .cse1) (or .cse2 .cse0 (and (= (_ bv0 32) |timeShift_isLowWaterLevel_~tmp~10#1|) (= |timeShift_isLowWaterSensorDry_#res#1| (_ bv0 32)) (= |timeShift_processEnvironment_~tmp~7#1| (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv1 32) |timeShift_isLowWaterLevel_~tmp___0~3#1|) (= |timeShift_isLowWaterLevel_#res#1| (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0))))) [2022-01-10 06:36:15,596 INFO L854 garLoopResultBuilder]: At program point L686(lines 681 688) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv1 32))))) (and (or .cse0 (not (= |old(~pumpRunning~0)| (_ bv0 32))) (not (= (_ bv1 32) |old(~waterLevel~0)|))) (or (not (= (_ bv2 32) |old(~waterLevel~0)|)) .cse0))) [2022-01-10 06:36:15,597 INFO L854 garLoopResultBuilder]: At program point L843(line 843) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse1 (= (_ bv0 32) ~pumpRunning~0)) (.cse2 (= ~waterLevel~0 |old(~waterLevel~0)|))) (and (or .cse0 (not (= |old(~pumpRunning~0)| (_ bv0 32))) (not (= (_ bv1 32) |old(~waterLevel~0)|)) (and .cse1 .cse2)) (or (not (= (_ bv2 32) |old(~waterLevel~0)|)) .cse0 (and (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1 .cse2)))) [2022-01-10 06:36:15,597 INFO L854 garLoopResultBuilder]: At program point L843-1(lines 824 848) the Hoare annotation is: (let ((.cse6 (= ~systemActive~0 (_ bv1 32))) (.cse3 (= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse2 (= (_ bv0 32) ~pumpRunning~0)) (.cse4 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse5 (and .cse6 .cse3)) (.cse0 (not .cse6)) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32))))) (and (or .cse0 .cse1 (not (= (_ bv1 32) |old(~waterLevel~0)|)) (and .cse2 .cse3)) (or .cse4 .cse5 (and (= ~waterLevel~0 (_ bv1 32)) .cse2) .cse0) (or .cse4 .cse5 .cse0 .cse1)))) [2022-01-10 06:36:15,597 INFO L858 garLoopResultBuilder]: For program point L777-1(lines 777 783) no Hoare annotation was computed. [2022-01-10 06:36:15,597 INFO L858 garLoopResultBuilder]: For program point L967(lines 967 971) no Hoare annotation was computed. [2022-01-10 06:36:15,597 INFO L858 garLoopResultBuilder]: For program point L967-2(lines 967 971) no Hoare annotation was computed. [2022-01-10 06:36:15,597 INFO L854 garLoopResultBuilder]: At program point L133(lines 128 136) the Hoare annotation is: (let ((.cse3 (= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse4 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse2 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse5 (and (= |timeShift_getWaterLevel_#res#1| (_ bv2 32)) .cse3))) (and (or .cse0 .cse1 (not (= (_ bv1 32) |old(~waterLevel~0)|)) (and .cse2 .cse3)) (or .cse4 .cse0 .cse5 .cse1) (or .cse4 (and (= ~waterLevel~0 (_ bv1 32)) .cse2) .cse0 .cse5)))) [2022-01-10 06:36:15,597 INFO L858 garLoopResultBuilder]: For program point L195(lines 195 201) no Hoare annotation was computed. [2022-01-10 06:36:15,597 INFO L854 garLoopResultBuilder]: At program point L179(lines 172 181) the Hoare annotation is: (let ((.cse1 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse0 (not (= ~systemActive~0 (_ bv1 32))))) (and (or .cse0 (not (= |old(~pumpRunning~0)| (_ bv0 32))) (not (= (_ bv1 32) |old(~waterLevel~0)|)) (and (= (_ bv0 32) ~pumpRunning~0) .cse1)) (or (not (= (_ bv2 32) |old(~waterLevel~0)|)) (and (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1) .cse0))) [2022-01-10 06:36:15,597 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 763 789) the Hoare annotation is: (let ((.cse1 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse0 (not (= ~systemActive~0 (_ bv1 32))))) (and (or .cse0 (not (= |old(~pumpRunning~0)| (_ bv0 32))) (not (= (_ bv1 32) |old(~waterLevel~0)|)) (and (= (_ bv0 32) ~pumpRunning~0) .cse1)) (or (not (= (_ bv2 32) |old(~waterLevel~0)|)) (and (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1) .cse0))) [2022-01-10 06:36:15,597 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 763 789) no Hoare annotation was computed. [2022-01-10 06:36:15,597 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 685) no Hoare annotation was computed. [2022-01-10 06:36:15,597 INFO L858 garLoopResultBuilder]: For program point L770(lines 770 776) no Hoare annotation was computed. [2022-01-10 06:36:15,597 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 580 609) no Hoare annotation was computed. [2022-01-10 06:36:15,597 INFO L861 garLoopResultBuilder]: At program point L605(lines 580 609) the Hoare annotation is: true [2022-01-10 06:36:15,597 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 580 609) the Hoare annotation is: true [2022-01-10 06:36:15,598 INFO L858 garLoopResultBuilder]: For program point L601(line 601) no Hoare annotation was computed. [2022-01-10 06:36:15,598 INFO L858 garLoopResultBuilder]: For program point L594(lines 594 598) no Hoare annotation was computed. [2022-01-10 06:36:15,598 INFO L861 garLoopResultBuilder]: At program point L594-1(lines 594 598) the Hoare annotation is: true [2022-01-10 06:36:15,598 INFO L858 garLoopResultBuilder]: For program point L591(line 591) no Hoare annotation was computed. [2022-01-10 06:36:15,598 INFO L861 garLoopResultBuilder]: At program point L590-2(lines 590 604) the Hoare annotation is: true [2022-01-10 06:36:15,598 INFO L861 garLoopResultBuilder]: At program point L586(line 586) the Hoare annotation is: true [2022-01-10 06:36:15,598 INFO L858 garLoopResultBuilder]: For program point L586-1(line 586) no Hoare annotation was computed. [2022-01-10 06:36:15,598 INFO L858 garLoopResultBuilder]: For program point L667(lines 667 674) no Hoare annotation was computed. [2022-01-10 06:36:15,598 INFO L858 garLoopResultBuilder]: For program point L667-2(lines 667 674) no Hoare annotation was computed. [2022-01-10 06:36:15,598 INFO L858 garLoopResultBuilder]: For program point L721(lines 721 727) no Hoare annotation was computed. [2022-01-10 06:36:15,598 INFO L858 garLoopResultBuilder]: For program point L721-1(lines 721 727) no Hoare annotation was computed. [2022-01-10 06:36:15,598 INFO L861 garLoopResultBuilder]: At program point L651(lines 643 653) the Hoare annotation is: true [2022-01-10 06:36:15,598 INFO L854 garLoopResultBuilder]: At program point L746(lines 701 748) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 (_ bv1 32))) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32)))) (or (and (= ~waterLevel~0 (_ bv2 32)) .cse0 .cse1) (and .cse0 (= ~waterLevel~0 (_ bv1 32)) .cse1 (= (_ bv0 32) ~pumpRunning~0)))) [2022-01-10 06:36:15,598 INFO L854 garLoopResultBuilder]: At program point L713(line 713) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 (_ bv1 32))) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32)))) (or (and (= ~waterLevel~0 (_ bv2 32)) .cse0 .cse1) (and .cse0 (= ~waterLevel~0 (_ bv1 32)) .cse1 (= (_ bv0 32) ~pumpRunning~0)))) [2022-01-10 06:36:15,598 INFO L861 garLoopResultBuilder]: At program point L676(lines 657 679) the Hoare annotation is: true [2022-01-10 06:36:15,598 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-01-10 06:36:15,598 INFO L854 garLoopResultBuilder]: At program point L639(lines 635 641) the Hoare annotation is: (and (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2022-01-10 06:36:15,598 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-01-10 06:36:15,599 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-01-10 06:36:15,599 INFO L854 garLoopResultBuilder]: At program point L982(lines 977 984) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 (_ bv1 32))) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32)))) (or (and (= ~waterLevel~0 (_ bv2 32)) .cse0 .cse1) (and .cse0 (= ~waterLevel~0 (_ bv1 32)) .cse1 (= (_ bv0 32) ~pumpRunning~0)))) [2022-01-10 06:36:15,599 INFO L854 garLoopResultBuilder]: At program point L169(lines 164 171) the Hoare annotation is: (and (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2022-01-10 06:36:15,599 INFO L858 garLoopResultBuilder]: For program point L739(lines 739 743) no Hoare annotation was computed. [2022-01-10 06:36:15,599 INFO L854 garLoopResultBuilder]: At program point L739-2(lines 731 744) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 (_ bv1 32))) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32)))) (or (and (= ~waterLevel~0 (_ bv2 32)) .cse0 .cse1) (and .cse0 (= ~waterLevel~0 (_ bv1 32)) .cse1 (= (_ bv0 32) ~pumpRunning~0)))) [2022-01-10 06:36:15,599 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-01-10 06:36:15,599 INFO L858 garLoopResultBuilder]: For program point L702(lines 701 748) no Hoare annotation was computed. [2022-01-10 06:36:15,600 INFO L858 garLoopResultBuilder]: For program point L731(lines 731 744) no Hoare annotation was computed. [2022-01-10 06:36:15,600 INFO L854 garLoopResultBuilder]: At program point L1016(lines 1011 1019) the Hoare annotation is: (and (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2022-01-10 06:36:15,600 INFO L854 garLoopResultBuilder]: At program point L723(line 723) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 (_ bv1 32))) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32)))) (or (and (= ~waterLevel~0 (_ bv2 32)) .cse0 .cse1) (and .cse0 (= ~waterLevel~0 (_ bv1 32)) .cse1 (= (_ bv0 32) ~pumpRunning~0)))) [2022-01-10 06:36:15,600 INFO L854 garLoopResultBuilder]: At program point L1008(lines 1004 1010) the Hoare annotation is: (and (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2022-01-10 06:36:15,600 INFO L861 garLoopResultBuilder]: At program point L752(lines 691 756) the Hoare annotation is: true [2022-01-10 06:36:15,600 INFO L858 garLoopResultBuilder]: For program point L711(lines 711 717) no Hoare annotation was computed. [2022-01-10 06:36:15,600 INFO L858 garLoopResultBuilder]: For program point L711-1(lines 711 717) no Hoare annotation was computed. [2022-01-10 06:36:15,601 INFO L858 garLoopResultBuilder]: For program point L703(lines 703 707) no Hoare annotation was computed. [2022-01-10 06:36:15,601 INFO L854 garLoopResultBuilder]: At program point L749(lines 700 750) the Hoare annotation is: false [2022-01-10 06:36:15,602 INFO L854 garLoopResultBuilder]: At program point L1001(lines 997 1003) the Hoare annotation is: (and (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2022-01-10 06:36:15,602 INFO L858 garLoopResultBuilder]: For program point L865(lines 865 871) no Hoare annotation was computed. [2022-01-10 06:36:15,602 INFO L854 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 798 822) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse2 (= (_ bv0 32) ~pumpRunning~0))) (and (or .cse0 (not (= ~waterLevel~0 (_ bv2 32))) .cse1 .cse2) (or .cse0 .cse1 (not (= ~waterLevel~0 (_ bv1 32))) .cse2))) [2022-01-10 06:36:15,602 INFO L854 garLoopResultBuilder]: At program point L865-2(lines 858 874) the Hoare annotation is: (or (not (= ~systemActive~0 (_ bv1 32))) (not (= |old(~pumpRunning~0)| (_ bv0 32))) (not (= ~waterLevel~0 (_ bv1 32)))) [2022-01-10 06:36:15,602 INFO L854 garLoopResultBuilder]: At program point L954(lines 939 957) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse2 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse1 (= (_ bv0 32) ~pumpRunning~0))) (and (or .cse0 (and (= (_ bv0 32) |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~2#1|) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| (_ bv0 32)) .cse1) .cse2 (not (= ~waterLevel~0 (_ bv1 32)))) (or .cse0 (not (= ~waterLevel~0 (_ bv2 32))) .cse2 .cse1))) [2022-01-10 06:36:15,602 INFO L854 garLoopResultBuilder]: At program point L890(lines 883 893) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32))))) (and (or .cse0 .cse1 (not (= ~waterLevel~0 (_ bv1 32)))) (or .cse0 (not (= ~waterLevel~0 (_ bv2 32))) .cse1 (= (_ bv0 32) ~pumpRunning~0)))) [2022-01-10 06:36:15,602 INFO L858 garLoopResultBuilder]: For program point L948(lines 948 952) no Hoare annotation was computed. [2022-01-10 06:36:15,602 INFO L858 garLoopResultBuilder]: For program point L948-2(lines 948 952) no Hoare annotation was computed. [2022-01-10 06:36:15,602 INFO L858 garLoopResultBuilder]: For program point L141(lines 141 147) no Hoare annotation was computed. [2022-01-10 06:36:15,602 INFO L854 garLoopResultBuilder]: At program point L812(line 812) the Hoare annotation is: (let ((.cse3 (= ~systemActive~0 (_ bv1 32)))) (let ((.cse0 (not .cse3)) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse2 (and (= |old(~pumpRunning~0)| ~pumpRunning~0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~6#1| (_ bv0 32)) .cse3 (= (_ bv0 32) ~pumpRunning~0)))) (and (or .cse0 .cse1 .cse2 (not (= ~waterLevel~0 (_ bv1 32)))) (or .cse0 (not (= ~waterLevel~0 (_ bv2 32))) .cse1 .cse2)))) [2022-01-10 06:36:15,602 INFO L858 garLoopResultBuilder]: For program point L806(lines 806 814) no Hoare annotation was computed. [2022-01-10 06:36:15,602 INFO L858 garLoopResultBuilder]: For program point L802(lines 802 819) no Hoare annotation was computed. [2022-01-10 06:36:15,602 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 798 822) no Hoare annotation was computed. [2022-01-10 06:36:15,602 INFO L854 garLoopResultBuilder]: At program point L854(lines 849 856) the Hoare annotation is: (or (not (= ~systemActive~0 (_ bv1 32))) (not (= |old(~pumpRunning~0)| (_ bv0 32))) (not (= ~waterLevel~0 (_ bv1 32)))) [2022-01-10 06:36:15,603 INFO L854 garLoopResultBuilder]: At program point L146(lines 137 150) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse2 (= (_ bv0 32) ~pumpRunning~0))) (and (or .cse0 .cse1 (not (= ~waterLevel~0 (_ bv1 32))) (and (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| (_ bv1 32)) .cse2)) (or .cse0 (not (= ~waterLevel~0 (_ bv2 32))) .cse1 .cse2))) [2022-01-10 06:36:15,603 INFO L854 garLoopResultBuilder]: At program point L817(line 817) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32))))) (and (or .cse0 .cse1 (not (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv1 32)))) (or .cse0 .cse1 (not (= ~waterLevel~0 (_ bv1 32)))))) [2022-01-10 06:36:15,603 INFO L858 garLoopResultBuilder]: For program point L817-1(lines 798 822) no Hoare annotation was computed. [2022-01-10 06:36:15,603 INFO L854 garLoopResultBuilder]: At program point L101(lines 96 104) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32))))) (and (or .cse0 .cse1 (not (= ~waterLevel~0 (_ bv1 32)))) (or .cse0 (not (= ~waterLevel~0 (_ bv2 32))) .cse1 (= (_ bv0 32) ~pumpRunning~0)))) [2022-01-10 06:36:15,603 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 72 83) no Hoare annotation was computed. [2022-01-10 06:36:15,603 INFO L858 garLoopResultBuilder]: For program point L76-1(lines 72 83) no Hoare annotation was computed. [2022-01-10 06:36:15,603 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 72 83) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse1 (= ~waterLevel~0 |old(~waterLevel~0)|))) (and (or (not (= (_ bv0 32) ~pumpRunning~0)) .cse0 (not (= (_ bv1 32) |old(~waterLevel~0)|)) .cse1) (or (not (= (_ bv2 32) |old(~waterLevel~0)|)) .cse0 .cse1))) [2022-01-10 06:36:15,603 INFO L858 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 894 902) no Hoare annotation was computed. [2022-01-10 06:36:15,603 INFO L861 garLoopResultBuilder]: At program point isPumpRunningENTRY(lines 894 902) the Hoare annotation is: true [2022-01-10 06:36:15,603 INFO L858 garLoopResultBuilder]: For program point isPumpRunningFINAL(lines 894 902) no Hoare annotation was computed. [2022-01-10 06:36:15,606 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:36:15,607 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 06:36:15,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 06:36:15 BoogieIcfgContainer [2022-01-10 06:36:15,627 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 06:36:15,627 INFO L158 Benchmark]: Toolchain (without parser) took 9103.93ms. Allocated memory was 200.3MB in the beginning and 241.2MB in the end (delta: 40.9MB). Free memory was 149.5MB in the beginning and 145.9MB in the end (delta: 3.5MB). Peak memory consumption was 110.9MB. Max. memory is 8.0GB. [2022-01-10 06:36:15,627 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 200.3MB. Free memory was 166.7MB in the beginning and 166.6MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 06:36:15,628 INFO L158 Benchmark]: CACSL2BoogieTranslator took 383.73ms. Allocated memory is still 200.3MB. Free memory was 149.2MB in the beginning and 160.8MB in the end (delta: -11.6MB). Peak memory consumption was 12.1MB. Max. memory is 8.0GB. [2022-01-10 06:36:15,628 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.51ms. Allocated memory is still 200.3MB. Free memory was 160.8MB in the beginning and 158.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 06:36:15,628 INFO L158 Benchmark]: Boogie Preprocessor took 19.93ms. Allocated memory is still 200.3MB. Free memory was 158.2MB in the beginning and 156.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 06:36:15,628 INFO L158 Benchmark]: RCFGBuilder took 439.52ms. Allocated memory is still 200.3MB. Free memory was 156.7MB in the beginning and 138.3MB in the end (delta: 18.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2022-01-10 06:36:15,628 INFO L158 Benchmark]: TraceAbstraction took 8206.37ms. Allocated memory was 200.3MB in the beginning and 241.2MB in the end (delta: 40.9MB). Free memory was 137.8MB in the beginning and 145.9MB in the end (delta: -8.2MB). Peak memory consumption was 98.8MB. Max. memory is 8.0GB. [2022-01-10 06:36:15,630 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 200.3MB. Free memory was 166.7MB in the beginning and 166.6MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 383.73ms. Allocated memory is still 200.3MB. Free memory was 149.2MB in the beginning and 160.8MB in the end (delta: -11.6MB). Peak memory consumption was 12.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 49.51ms. Allocated memory is still 200.3MB. Free memory was 160.8MB in the beginning and 158.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 19.93ms. Allocated memory is still 200.3MB. Free memory was 158.2MB in the beginning and 156.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 439.52ms. Allocated memory is still 200.3MB. Free memory was 156.7MB in the beginning and 138.3MB in the end (delta: 18.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 8206.37ms. Allocated memory was 200.3MB in the beginning and 241.2MB in the end (delta: 40.9MB). Free memory was 137.8MB in the beginning and 145.9MB in the end (delta: -8.2MB). Peak memory consumption was 98.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 685]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 97 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.1s, OverallIterations: 11, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.5s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1472 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1435 mSDsluCounter, 4183 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2846 mSDsCounter, 426 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1789 IncrementalHoareTripleChecker+Invalid, 2215 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 426 mSolverCounterUnsat, 1337 mSDtfsCounter, 1789 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 771 GetRequests, 694 SyntacticMatches, 4 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=893occurred in iteration=10, InterpolantAutomatonStates: 84, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 258 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 46 LocationsWithAnnotation, 1210 PreInvPairs, 1284 NumberOfFragments, 1142 HoareAnnotationTreeSize, 1210 FomulaSimplifications, 24 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 46 FomulaSimplificationsInter, 2110 FormulaSimplificationTreeSizeReductionInter, 1.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 635 NumberOfCodeBlocks, 635 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 725 ConstructedInterpolants, 0 QuantifiedInterpolants, 1686 SizeOfPredicates, 22 NumberOfNonLiveVariables, 2186 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 12 InterpolantComputations, 10 PerfectInterpolantSequences, 112/129 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 635]: Loop Invariant Derived loop invariant: (systemActive == 1bv32 && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 875]: Loop Invariant Derived loop invariant: (((!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(1bv32 == \old(waterLevel))) && ((!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) || !(\old(pumpRunning) == 0bv32))) && ((!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) || ((((((0bv32 == tmp && \result == 0bv32) && tmp == 1bv32) && waterLevel == 1bv32) && 1bv32 == tmp___0) && \result == 1bv32) && 0bv32 == pumpRunning)) - InvariantResult [Line: 700]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 691]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 977]: Loop Invariant Derived loop invariant: ((waterLevel == 2bv32 && systemActive == 1bv32) && splverifierCounter == 0bv32) || (((systemActive == 1bv32 && waterLevel == 1bv32) && splverifierCounter == 0bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: ((((!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(1bv32 == \old(waterLevel))) || (0bv32 == pumpRunning && waterLevel == \old(waterLevel))) && (((!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) || (\result == 2bv32 && waterLevel == \old(waterLevel))) || !(\old(pumpRunning) == 0bv32))) && (((!(2bv32 == \old(waterLevel)) || (waterLevel == 1bv32 && 0bv32 == pumpRunning)) || !(systemActive == 1bv32)) || (\result == 2bv32 && waterLevel == \old(waterLevel))) - InvariantResult [Line: 172]: Loop Invariant Derived loop invariant: (((!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(1bv32 == \old(waterLevel))) || (0bv32 == pumpRunning && waterLevel == \old(waterLevel))) && ((!(2bv32 == \old(waterLevel)) || (\old(pumpRunning) == pumpRunning && waterLevel == \old(waterLevel))) || !(systemActive == 1bv32)) - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: ((!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(waterLevel == 1bv32)) && (((!(systemActive == 1bv32) || !(waterLevel == 2bv32)) || !(\old(pumpRunning) == 0bv32)) || 0bv32 == pumpRunning) - InvariantResult [Line: 824]: Loop Invariant Derived loop invariant: ((((!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(1bv32 == \old(waterLevel))) || (0bv32 == pumpRunning && waterLevel == \old(waterLevel))) && (((!(2bv32 == \old(waterLevel)) || (systemActive == 1bv32 && waterLevel == \old(waterLevel))) || (waterLevel == 1bv32 && 0bv32 == pumpRunning)) || !(systemActive == 1bv32))) && (((!(2bv32 == \old(waterLevel)) || (systemActive == 1bv32 && waterLevel == \old(waterLevel))) || !(systemActive == 1bv32)) || !(\old(pumpRunning) == 0bv32)) - InvariantResult [Line: 590]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1011]: Loop Invariant Derived loop invariant: (systemActive == 1bv32 && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 939]: Loop Invariant Derived loop invariant: (((!(systemActive == 1bv32) || ((0bv32 == tmp___0 && \result == 0bv32) && 0bv32 == pumpRunning)) || !(\old(pumpRunning) == 0bv32)) || !(waterLevel == 1bv32)) && (((!(systemActive == 1bv32) || !(waterLevel == 2bv32)) || !(\old(pumpRunning) == 0bv32)) || 0bv32 == pumpRunning) - InvariantResult [Line: 681]: Loop Invariant Derived loop invariant: ((!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(1bv32 == \old(waterLevel))) && (!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) - InvariantResult [Line: 643]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 701]: Loop Invariant Derived loop invariant: ((waterLevel == 2bv32 && systemActive == 1bv32) && splverifierCounter == 0bv32) || (((systemActive == 1bv32 && waterLevel == 1bv32) && splverifierCounter == 0bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 580]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 958]: Loop Invariant Derived loop invariant: (((!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) || (((((0bv32 == tmp && \result == 0bv32) && \old(pumpRunning) == pumpRunning) && waterLevel == 1bv32) && 1bv32 == tmp___0) && \result == 1bv32)) && ((!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(1bv32 == \old(waterLevel)))) && ((!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) || !(\old(pumpRunning) == 0bv32)) - InvariantResult [Line: 182]: Loop Invariant Derived loop invariant: ((((!(2bv32 == \old(waterLevel)) || (waterLevel == 1bv32 && 0bv32 == pumpRunning)) || !(systemActive == 1bv32)) || (((\result == 2bv32 && systemActive == 1bv32) && 2bv32 == tmp) && waterLevel == \old(waterLevel))) && (((!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(1bv32 == \old(waterLevel))) || (0bv32 == pumpRunning && waterLevel == \old(waterLevel)))) && (((!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) || !(\old(pumpRunning) == 0bv32)) || (((\result == 2bv32 && systemActive == 1bv32) && 2bv32 == tmp) && waterLevel == \old(waterLevel))) - InvariantResult [Line: 883]: Loop Invariant Derived loop invariant: ((!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(waterLevel == 1bv32)) && (((!(systemActive == 1bv32) || !(waterLevel == 2bv32)) || !(\old(pumpRunning) == 0bv32)) || 0bv32 == pumpRunning) - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: (((!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) || (\old(pumpRunning) == pumpRunning && waterLevel == 1bv32)) && ((!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(1bv32 == \old(waterLevel)))) && ((!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) || !(\old(pumpRunning) == 0bv32)) - InvariantResult [Line: 164]: Loop Invariant Derived loop invariant: (systemActive == 1bv32 && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 858]: Loop Invariant Derived loop invariant: (!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(waterLevel == 1bv32) - InvariantResult [Line: 1004]: Loop Invariant Derived loop invariant: (systemActive == 1bv32 && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 151]: Loop Invariant Derived loop invariant: (((!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) || ((\result == 0bv32 && \old(pumpRunning) == pumpRunning) && waterLevel == 1bv32)) && ((!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(1bv32 == \old(waterLevel)))) && ((!(2bv32 == \old(waterLevel)) || !(systemActive == 1bv32)) || !(\old(pumpRunning) == 0bv32)) - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: (((!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(waterLevel == 1bv32)) || (\result == 1bv32 && 0bv32 == pumpRunning)) && (((!(systemActive == 1bv32) || !(waterLevel == 2bv32)) || !(\old(pumpRunning) == 0bv32)) || 0bv32 == pumpRunning) - InvariantResult [Line: 849]: Loop Invariant Derived loop invariant: (!(systemActive == 1bv32) || !(\old(pumpRunning) == 0bv32)) || !(waterLevel == 1bv32) - InvariantResult [Line: 997]: Loop Invariant Derived loop invariant: (systemActive == 1bv32 && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 657]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-01-10 06:36:15,669 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...