/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/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 06:38:47,958 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 06:38:47,959 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 06:38:47,995 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 06:38:47,996 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 06:38:47,996 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 06:38:47,997 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 06:38:48,025 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 06:38:48,027 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 06:38:48,031 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 06:38:48,032 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 06:38:48,032 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 06:38:48,033 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 06:38:48,033 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 06:38:48,034 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 06:38:48,034 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 06:38:48,035 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 06:38:48,035 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 06:38:48,036 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 06:38:48,040 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 06:38:48,041 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 06:38:48,044 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 06:38:48,046 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 06:38:48,047 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 06:38:48,051 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-11 06:38:48,056 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 06:38:48,056 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 06:38:48,056 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 06:38:48,057 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 06:38:48,071 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 06:38:48,072 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 06:38:48,072 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 06:38:48,072 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 06:38:48,073 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 06:38:48,073 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 06:38:48,073 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 06:38:48,073 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 06:38:48,073 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 06:38:48,073 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 06:38:48,073 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 06:38:48,074 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 06:38:48,074 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 06:38:48,074 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 06:38:48,074 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 06:38:48,074 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 06:38:48,074 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 06:38:48,074 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 06:38:48,074 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 06:38:48,074 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 06:38:48,075 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 06:38:48,075 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 06:38:48,075 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 06:38:48,075 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 06:38:48,075 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 06:38:48,075 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 06:38:48,075 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 06:38:48,076 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 06:38:48,076 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 06:38:48,076 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 06:38:48,076 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 06:38:48,076 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 06:38:48,077 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 06:38:48,077 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 06:38:48,248 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 06:38:48,263 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 06:38:48,264 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 06:38:48,265 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 06:38:48,269 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 06:38:48,270 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-01-11 06:38:48,314 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbf5abad8/3a2b8fd780f54b2d89900f4ba0140202/FLAG743169b50 [2022-01-11 06:38:48,743 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 06:38:48,743 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-01-11 06:38:48,755 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbf5abad8/3a2b8fd780f54b2d89900f4ba0140202/FLAG743169b50 [2022-01-11 06:38:48,767 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbf5abad8/3a2b8fd780f54b2d89900f4ba0140202 [2022-01-11 06:38:48,769 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 06:38:48,769 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 06:38:48,770 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 06:38:48,771 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 06:38:48,773 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 06:38:48,773 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 06:38:48" (1/1) ... [2022-01-11 06:38:48,774 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68a96188 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:38:48, skipping insertion in model container [2022-01-11 06:38:48,774 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 06:38:48" (1/1) ... [2022-01-11 06:38:48,779 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 06:38:48,859 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 06:38:49,023 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[8891,8904] [2022-01-11 06:38:49,035 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[12143,12156] [2022-01-11 06:38:49,040 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13299,13312] [2022-01-11 06:38:49,045 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13955,13968] [2022-01-11 06:38:49,060 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[15434,15447] [2022-01-11 06:38:49,063 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[16090,16103] [2022-01-11 06:38:49,072 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[17074,17087] [2022-01-11 06:38:49,084 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19370,19383] [2022-01-11 06:38:49,087 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[20029,20042] [2022-01-11 06:38:49,104 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21011,21024] [2022-01-11 06:38:49,109 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[22802,22815] [2022-01-11 06:38:49,180 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 06:38:49,199 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 06:38:49,257 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[8891,8904] [2022-01-11 06:38:49,271 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[12143,12156] [2022-01-11 06:38:49,280 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13299,13312] [2022-01-11 06:38:49,288 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13955,13968] [2022-01-11 06:38:49,300 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[15434,15447] [2022-01-11 06:38:49,304 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[16090,16103] [2022-01-11 06:38:49,309 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[17074,17087] [2022-01-11 06:38:49,322 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19370,19383] [2022-01-11 06:38:49,326 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[20029,20042] [2022-01-11 06:38:49,331 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21011,21024] [2022-01-11 06:38:49,350 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[22802,22815] [2022-01-11 06:38:49,424 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 06:38:49,435 INFO L208 MainTranslator]: Completed translation [2022-01-11 06:38:49,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:38:49 WrapperNode [2022-01-11 06:38:49,435 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 06:38:49,436 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 06:38:49,436 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 06:38:49,436 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 06:38:49,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:38:49" (1/1) ... [2022-01-11 06:38:49,460 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:38:49" (1/1) ... [2022-01-11 06:38:49,502 INFO L137 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1776 [2022-01-11 06:38:49,502 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 06:38:49,503 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 06:38:49,503 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 06:38:49,503 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 06:38:49,508 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:38:49" (1/1) ... [2022-01-11 06:38:49,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:38:49" (1/1) ... [2022-01-11 06:38:49,514 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:38:49" (1/1) ... [2022-01-11 06:38:49,514 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:38:49" (1/1) ... [2022-01-11 06:38:49,552 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:38:49" (1/1) ... [2022-01-11 06:38:49,559 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:38:49" (1/1) ... [2022-01-11 06:38:49,580 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:38:49" (1/1) ... [2022-01-11 06:38:49,587 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 06:38:49,588 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 06:38:49,588 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 06:38:49,588 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 06:38:49,601 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:38:49" (1/1) ... [2022-01-11 06:38:49,607 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 06:38:49,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 06:38:49,630 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) [2022-01-11 06:38:49,647 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 [2022-01-11 06:38:49,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 06:38:49,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 06:38:49,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 06:38:49,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 06:38:49,774 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 06:38:49,775 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 06:38:50,910 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 06:38:50,918 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 06:38:50,918 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-11 06:38:50,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 06:38:50 BoogieIcfgContainer [2022-01-11 06:38:50,920 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 06:38:50,920 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 06:38:50,920 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 06:38:50,923 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 06:38:50,924 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 06:38:50" (1/1) ... [2022-01-11 06:38:51,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 06:38:51 BasicIcfg [2022-01-11 06:38:51,634 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 06:38:51,636 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 06:38:51,636 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 06:38:51,638 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 06:38:51,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 06:38:48" (1/4) ... [2022-01-11 06:38:51,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dd0a7b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 06:38:51, skipping insertion in model container [2022-01-11 06:38:51,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:38:49" (2/4) ... [2022-01-11 06:38:51,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dd0a7b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 06:38:51, skipping insertion in model container [2022-01-11 06:38:51,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 06:38:50" (3/4) ... [2022-01-11 06:38:51,640 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dd0a7b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 06:38:51, skipping insertion in model container [2022-01-11 06:38:51,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 06:38:51" (4/4) ... [2022-01-11 06:38:51,642 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.cTransformedIcfg [2022-01-11 06:38:51,647 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 06:38:51,647 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-01-11 06:38:51,693 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 06:38:51,697 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 [2022-01-11 06:38:51,698 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-01-11 06:38:51,719 INFO L276 IsEmpty]: Start isEmpty. Operand has 357 states, 345 states have (on average 1.8376811594202898) internal successors, (634), 356 states have internal predecessors, (634), 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) [2022-01-11 06:38:51,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-11 06:38:51,735 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:38:51,736 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 06:38:51,736 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-11 06:38:51,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:38:51,740 INFO L85 PathProgramCache]: Analyzing trace with hash 399436878, now seen corresponding path program 1 times [2022-01-11 06:38:51,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:38:51,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495331122] [2022-01-11 06:38:51,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:38:51,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:38:52,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:38:52,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:38:52,444 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:38:52,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495331122] [2022-01-11 06:38:52,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495331122] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:38:52,445 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:38:52,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-11 06:38:52,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049927906] [2022-01-11 06:38:52,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:38:52,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 06:38:52,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:38:52,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 06:38:52,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-11 06:38:52,478 INFO L87 Difference]: Start difference. First operand has 357 states, 345 states have (on average 1.8376811594202898) internal successors, (634), 356 states have internal predecessors, (634), 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) Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 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) [2022-01-11 06:38:55,174 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 06:38:57,313 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 06:39:00,208 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 06:39:02,458 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 06:39:05,848 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 06:39:07,982 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 06:39:10,123 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 06:39:10,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:39:10,652 INFO L93 Difference]: Finished difference Result 1004 states and 1662 transitions. [2022-01-11 06:39:10,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 06:39:10,656 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 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) Word has length 58 [2022-01-11 06:39:10,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:39:10,679 INFO L225 Difference]: With dead ends: 1004 [2022-01-11 06:39:10,679 INFO L226 Difference]: Without dead ends: 754 [2022-01-11 06:39:10,684 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-11 06:39:10,689 INFO L933 BasicCegarLoop]: 563 mSDtfsCounter, 1595 mSDsluCounter, 1707 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 11 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1595 SdHoareTripleChecker+Valid, 2270 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time [2022-01-11 06:39:10,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1595 Valid, 2270 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 622 Invalid, 7 Unknown, 0 Unchecked, 17.6s Time] [2022-01-11 06:39:10,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2022-01-11 06:39:10,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 492. [2022-01-11 06:39:10,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 481 states have (on average 1.3762993762993763) internal successors, (662), 491 states have internal predecessors, (662), 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) [2022-01-11 06:39:10,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 662 transitions. [2022-01-11 06:39:10,803 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 662 transitions. Word has length 58 [2022-01-11 06:39:10,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:39:10,803 INFO L470 AbstractCegarLoop]: Abstraction has 492 states and 662 transitions. [2022-01-11 06:39:10,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 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) [2022-01-11 06:39:10,804 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 662 transitions. [2022-01-11 06:39:10,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-11 06:39:10,808 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:39:10,808 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 06:39:10,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 06:39:10,809 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-11 06:39:10,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:39:10,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1835946825, now seen corresponding path program 1 times [2022-01-11 06:39:10,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:39:10,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115768428] [2022-01-11 06:39:10,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:39:10,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:39:10,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:39:11,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:39:11,199 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:39:11,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115768428] [2022-01-11 06:39:11,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115768428] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:39:11,200 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:39:11,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 06:39:11,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929141765] [2022-01-11 06:39:11,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:39:11,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 06:39:11,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:39:11,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 06:39:11,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-11 06:39:11,201 INFO L87 Difference]: Start difference. First operand 492 states and 662 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 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) [2022-01-11 06:39:16,501 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 06:39:18,654 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 06:39:20,866 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 06:39:24,697 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 06:39:26,838 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 06:39:28,984 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 06:39:31,128 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 06:39:33,875 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 06:39:37,903 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 06:39:40,014 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 06:39:40,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:39:40,353 INFO L93 Difference]: Finished difference Result 2159 states and 3076 transitions. [2022-01-11 06:39:40,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-11 06:39:40,354 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 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) Word has length 59 [2022-01-11 06:39:40,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:39:40,359 INFO L225 Difference]: With dead ends: 2159 [2022-01-11 06:39:40,359 INFO L226 Difference]: Without dead ends: 1776 [2022-01-11 06:39:40,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2022-01-11 06:39:40,361 INFO L933 BasicCegarLoop]: 460 mSDtfsCounter, 2380 mSDsluCounter, 1533 mSDsCounter, 0 mSdLazyCounter, 916 mSolverCounterSat, 28 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2380 SdHoareTripleChecker+Valid, 1993 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 916 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.3s IncrementalHoareTripleChecker+Time [2022-01-11 06:39:40,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2380 Valid, 1993 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 916 Invalid, 10 Unknown, 0 Unchecked, 28.3s Time] [2022-01-11 06:39:40,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1776 states. [2022-01-11 06:39:40,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1776 to 1150. [2022-01-11 06:39:40,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1150 states, 1139 states have (on average 1.4644424934152767) internal successors, (1668), 1149 states have internal predecessors, (1668), 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) [2022-01-11 06:39:40,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1150 states to 1150 states and 1668 transitions. [2022-01-11 06:39:40,581 INFO L78 Accepts]: Start accepts. Automaton has 1150 states and 1668 transitions. Word has length 59 [2022-01-11 06:39:40,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:39:40,581 INFO L470 AbstractCegarLoop]: Abstraction has 1150 states and 1668 transitions. [2022-01-11 06:39:40,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 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) [2022-01-11 06:39:40,582 INFO L276 IsEmpty]: Start isEmpty. Operand 1150 states and 1668 transitions. [2022-01-11 06:39:40,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-11 06:39:40,583 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:39:40,583 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 06:39:40,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 06:39:40,583 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-11 06:39:40,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:39:40,583 INFO L85 PathProgramCache]: Analyzing trace with hash -8528525, now seen corresponding path program 1 times [2022-01-11 06:39:40,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:39:40,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998725716] [2022-01-11 06:39:40,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:39:40,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:39:40,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:39:40,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:39:40,931 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:39:40,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998725716] [2022-01-11 06:39:40,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998725716] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:39:40,931 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:39:40,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 06:39:40,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829738514] [2022-01-11 06:39:40,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:39:40,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 06:39:40,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:39:40,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 06:39:40,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-11 06:39:40,932 INFO L87 Difference]: Start difference. First operand 1150 states and 1668 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 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) [2022-01-11 06:39:45,934 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 06:39:49,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:39:49,094 INFO L93 Difference]: Finished difference Result 3939 states and 5861 transitions. [2022-01-11 06:39:49,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-11 06:39:49,096 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 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) Word has length 59 [2022-01-11 06:39:49,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:39:49,104 INFO L225 Difference]: With dead ends: 3939 [2022-01-11 06:39:49,105 INFO L226 Difference]: Without dead ends: 3064 [2022-01-11 06:39:49,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2022-01-11 06:39:49,108 INFO L933 BasicCegarLoop]: 456 mSDtfsCounter, 2285 mSDsluCounter, 1510 mSDsCounter, 0 mSdLazyCounter, 938 mSolverCounterSat, 26 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2285 SdHoareTripleChecker+Valid, 1966 SdHoareTripleChecker+Invalid, 965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 938 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-01-11 06:39:49,108 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2285 Valid, 1966 Invalid, 965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 938 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2022-01-11 06:39:49,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3064 states. [2022-01-11 06:39:49,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3064 to 1180. [2022-01-11 06:39:49,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1180 states, 1169 states have (on average 1.4807527801539777) internal successors, (1731), 1179 states have internal predecessors, (1731), 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) [2022-01-11 06:39:49,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1180 states to 1180 states and 1731 transitions. [2022-01-11 06:39:49,430 INFO L78 Accepts]: Start accepts. Automaton has 1180 states and 1731 transitions. Word has length 59 [2022-01-11 06:39:49,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:39:49,430 INFO L470 AbstractCegarLoop]: Abstraction has 1180 states and 1731 transitions. [2022-01-11 06:39:49,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 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) [2022-01-11 06:39:49,430 INFO L276 IsEmpty]: Start isEmpty. Operand 1180 states and 1731 transitions. [2022-01-11 06:39:49,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-11 06:39:49,431 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:39:49,431 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 06:39:49,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 06:39:49,432 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-11 06:39:49,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:39:49,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1871624635, now seen corresponding path program 1 times [2022-01-11 06:39:49,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:39:49,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379023523] [2022-01-11 06:39:49,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:39:49,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:39:49,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:39:49,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:39:49,797 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:39:49,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379023523] [2022-01-11 06:39:49,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379023523] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:39:49,797 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:39:49,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-11 06:39:49,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523188855] [2022-01-11 06:39:49,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:39:49,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 06:39:49,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:39:49,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 06:39:49,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-11 06:39:49,799 INFO L87 Difference]: Start difference. First operand 1180 states and 1731 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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) [2022-01-11 06:39:56,659 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 06:39:58,916 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []