/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/array-fpi/s12if.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 03:25:26,997 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 03:25:26,999 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 03:25:27,054 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 03:25:27,054 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 03:25:27,058 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 03:25:27,059 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 03:25:27,060 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 03:25:27,061 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 03:25:27,062 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 03:25:27,062 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 03:25:27,063 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 03:25:27,063 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 03:25:27,064 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 03:25:27,064 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 03:25:27,065 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 03:25:27,065 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 03:25:27,066 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 03:25:27,067 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 03:25:27,072 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 03:25:27,079 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 03:25:27,084 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 03:25:27,084 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 03:25:27,085 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 03:25:27,086 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 03:25:27,086 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 03:25:27,086 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 03:25:27,087 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 03:25:27,087 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 03:25:27,088 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 03:25:27,088 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 03:25:27,088 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 03:25:27,089 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 03:25:27,089 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 03:25:27,090 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 03:25:27,090 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 03:25:27,090 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 03:25:27,090 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 03:25:27,091 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 03:25:27,091 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 03:25:27,091 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 03:25:27,097 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 03:25:27,123 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 03:25:27,123 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 03:25:27,124 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 03:25:27,124 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 03:25:27,125 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 03:25:27,125 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 03:25:27,125 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 03:25:27,125 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 03:25:27,125 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 03:25:27,125 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 03:25:27,126 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 03:25:27,126 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 03:25:27,126 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 03:25:27,126 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 03:25:27,126 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 03:25:27,126 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 03:25:27,126 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 03:25:27,126 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 03:25:27,126 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 03:25:27,127 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 03:25:27,127 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 03:25:27,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 03:25:27,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 03:25:27,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 03:25:27,127 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 03:25:27,127 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 03:25:27,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 03:25:27,127 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 03:25:27,127 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 03:25:27,127 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 03:25:27,128 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 03:25:27,128 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 03:25:27,129 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 03:25:27,129 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 03:25:27,302 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 03:25:27,316 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 03:25:27,318 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 03:25:27,318 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 03:25:27,319 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 03:25:27,320 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/s12if.c [2022-01-11 03:25:27,356 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ccf410e71/591220c7bb7f45659105509bbc32af9e/FLAG39d3af3df [2022-01-11 03:25:27,737 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 03:25:27,738 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/s12if.c [2022-01-11 03:25:27,744 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ccf410e71/591220c7bb7f45659105509bbc32af9e/FLAG39d3af3df [2022-01-11 03:25:27,765 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ccf410e71/591220c7bb7f45659105509bbc32af9e [2022-01-11 03:25:27,767 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 03:25:27,770 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 03:25:27,773 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 03:25:27,773 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 03:25:27,775 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 03:25:27,775 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 03:25:27" (1/1) ... [2022-01-11 03:25:27,776 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@202c66db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:25:27, skipping insertion in model container [2022-01-11 03:25:27,779 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 03:25:27" (1/1) ... [2022-01-11 03:25:27,783 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 03:25:27,819 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 03:25:27,942 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/s12if.c[588,601] [2022-01-11 03:25:27,979 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 03:25:27,992 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 03:25:28,011 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/s12if.c[588,601] [2022-01-11 03:25:28,035 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 03:25:28,062 INFO L208 MainTranslator]: Completed translation [2022-01-11 03:25:28,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:25:28 WrapperNode [2022-01-11 03:25:28,071 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 03:25:28,072 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 03:25:28,072 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 03:25:28,072 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 03:25:28,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:25:28" (1/1) ... [2022-01-11 03:25:28,084 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:25:28" (1/1) ... [2022-01-11 03:25:28,097 INFO L137 Inliner]: procedures = 21, calls = 28, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 89 [2022-01-11 03:25:28,098 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 03:25:28,098 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 03:25:28,098 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 03:25:28,098 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 03:25:28,104 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:25:28" (1/1) ... [2022-01-11 03:25:28,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:25:28" (1/1) ... [2022-01-11 03:25:28,107 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:25:28" (1/1) ... [2022-01-11 03:25:28,107 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:25:28" (1/1) ... [2022-01-11 03:25:28,114 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:25:28" (1/1) ... [2022-01-11 03:25:28,116 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:25:28" (1/1) ... [2022-01-11 03:25:28,117 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:25:28" (1/1) ... [2022-01-11 03:25:28,119 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 03:25:28,120 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 03:25:28,120 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 03:25:28,120 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 03:25:28,121 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:25:28" (1/1) ... [2022-01-11 03:25:28,126 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 03:25:28,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 03:25:28,142 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 03:25:28,147 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 03:25:28,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 03:25:28,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 03:25:28,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-11 03:25:28,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-01-11 03:25:28,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-11 03:25:28,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-01-11 03:25:28,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 03:25:28,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 03:25:28,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-01-11 03:25:28,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-11 03:25:28,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-01-11 03:25:28,222 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 03:25:28,223 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 03:25:28,428 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 03:25:28,434 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 03:25:28,434 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-01-11 03:25:28,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 03:25:28 BoogieIcfgContainer [2022-01-11 03:25:28,436 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 03:25:28,436 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 03:25:28,436 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 03:25:28,437 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 03:25:28,439 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 03:25:28" (1/1) ... [2022-01-11 03:25:28,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 03:25:28 BasicIcfg [2022-01-11 03:25:28,557 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 03:25:28,558 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 03:25:28,558 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 03:25:28,577 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 03:25:28,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 03:25:27" (1/4) ... [2022-01-11 03:25:28,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@187d25ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 03:25:28, skipping insertion in model container [2022-01-11 03:25:28,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:25:28" (2/4) ... [2022-01-11 03:25:28,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@187d25ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 03:25:28, skipping insertion in model container [2022-01-11 03:25:28,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 03:25:28" (3/4) ... [2022-01-11 03:25:28,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@187d25ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 03:25:28, skipping insertion in model container [2022-01-11 03:25:28,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 03:25:28" (4/4) ... [2022-01-11 03:25:28,579 INFO L111 eAbstractionObserver]: Analyzing ICFG s12if.cTransformedIcfg [2022-01-11 03:25:28,582 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 03:25:28,582 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-11 03:25:28,624 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 03:25:28,631 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 03:25:28,631 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-11 03:25:28,640 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 22 states have internal predecessors, (33), 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 03:25:28,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-01-11 03:25:28,644 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:25:28,645 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 03:25:28,645 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 03:25:28,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:25:28,652 INFO L85 PathProgramCache]: Analyzing trace with hash -100191935, now seen corresponding path program 1 times [2022-01-11 03:25:28,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:25:28,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080528871] [2022-01-11 03:25:28,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:25:28,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:25:28,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:25:28,828 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 03:25:28,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:25:28,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080528871] [2022-01-11 03:25:28,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080528871] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:25:28,831 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:25:28,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 03:25:28,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848519341] [2022-01-11 03:25:28,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:25:28,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-11 03:25:28,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:25:28,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-11 03:25:28,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 03:25:28,864 INFO L87 Difference]: Start difference. First operand has 23 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 22 states have internal predecessors, (33), 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 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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 03:25:28,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:25:28,876 INFO L93 Difference]: Finished difference Result 42 states and 60 transitions. [2022-01-11 03:25:28,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-11 03:25:28,878 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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 13 [2022-01-11 03:25:28,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:25:28,883 INFO L225 Difference]: With dead ends: 42 [2022-01-11 03:25:28,883 INFO L226 Difference]: Without dead ends: 19 [2022-01-11 03:25:28,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 03:25:28,889 INFO L933 BasicCegarLoop]: 28 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, 28 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 [2022-01-11 03:25:28,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 03:25:28,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-01-11 03:25:28,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-01-11 03:25:28,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 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 03:25:28,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2022-01-11 03:25:28,915 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 13 [2022-01-11 03:25:28,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:25:28,916 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2022-01-11 03:25:28,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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 03:25:28,917 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2022-01-11 03:25:28,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-01-11 03:25:28,917 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:25:28,917 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 03:25:28,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 03:25:28,918 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 03:25:28,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:25:28,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1474763837, now seen corresponding path program 1 times [2022-01-11 03:25:28,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:25:28,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96436955] [2022-01-11 03:25:28,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:25:28,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:25:29,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:25:29,121 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 03:25:29,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:25:29,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96436955] [2022-01-11 03:25:29,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96436955] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:25:29,122 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:25:29,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 03:25:29,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067804303] [2022-01-11 03:25:29,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:25:29,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 03:25:29,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:25:29,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 03:25:29,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-11 03:25:29,124 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 03:25:31,223 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-01-11 03:25:31,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:25:31,428 INFO L93 Difference]: Finished difference Result 46 states and 59 transitions. [2022-01-11 03:25:31,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 03:25:31,430 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2022-01-11 03:25:31,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:25:31,431 INFO L225 Difference]: With dead ends: 46 [2022-01-11 03:25:31,431 INFO L226 Difference]: Without dead ends: 34 [2022-01-11 03:25:31,431 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-11 03:25:31,432 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 30 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-01-11 03:25:31,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 15 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 33 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-01-11 03:25:31,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-01-11 03:25:31,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 22. [2022-01-11 03:25:31,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 states have internal predecessors, (26), 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 03:25:31,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2022-01-11 03:25:31,437 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 13 [2022-01-11 03:25:31,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:25:31,437 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2022-01-11 03:25:31,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 03:25:31,437 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2022-01-11 03:25:31,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-01-11 03:25:31,438 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:25:31,438 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] [2022-01-11 03:25:31,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 03:25:31,438 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 03:25:31,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:25:31,438 INFO L85 PathProgramCache]: Analyzing trace with hash 2135952032, now seen corresponding path program 1 times [2022-01-11 03:25:31,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:25:31,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010581762] [2022-01-11 03:25:31,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:25:31,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:25:31,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:25:33,241 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 03:25:33,242 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:25:33,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010581762] [2022-01-11 03:25:33,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010581762] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-11 03:25:33,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1544485521] [2022-01-11 03:25:33,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:25:33,242 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 03:25:33,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 03:25:33,250 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-11 03:25:33,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-11 03:25:33,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:25:33,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 40 conjunts are in the unsatisfiable core [2022-01-11 03:25:33,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 03:25:33,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 03:25:33,868 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-11 03:25:33,873 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 27 [2022-01-11 03:25:33,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 03:25:33,986 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 33 [2022-01-11 03:25:34,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 03:25:34,250 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 33 [2022-01-11 03:25:34,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 03:25:34,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 03:25:34,465 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 208 treesize of output 95 [2022-01-11 03:25:51,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 03:25:51,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-11 03:25:51,800 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 254 treesize of output 118 [2022-01-11 03:25:51,883 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 1 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-11 03:25:51,883 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-11 03:26:21,848 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_51 (Array Int Int)) (|ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| Int) (|ULTIMATE.start_ULTIMATE.start_main_~a~0#1.offsetInt| Int)) (let ((.cse0 (select v_ArrVal_51 (mod (+ (mod (+ (* |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 4) (* 18446744056529682432 (mod (div |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 2147483648) 2))) 18446744073709551616) |ULTIMATE.start_ULTIMATE.start_main_~a~0#1.offsetInt|) 18446744073709551616)))) (or (not (= .cse0 2)) (= (let ((.cse3 (mod (+ |c_ULTIMATE.start_ULTIMATE.start_main_~#sum~0#1.offsetInt| 4) 18446744073709551616)) (.cse1 (select (store |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1.baseInt| v_ArrVal_51) |c_ULTIMATE.start_ULTIMATE.start_main_~#sum~0#1.baseInt|))) (let ((.cse2 (mod (+ .cse0 (* (select .cse1 .cse3) 4294967296) (select .cse1 |c_ULTIMATE.start_ULTIMATE.start_main_~#sum~0#1.offsetInt|) (* 18446744069414584320 (mod (div .cse0 2147483648) 2))) 18446744073709551616))) (let ((.cse4 (mod (div .cse2 4294967296) 4294967296))) (+ (select (store (store .cse1 |c_ULTIMATE.start_ULTIMATE.start_main_~#sum~0#1.offsetInt| (mod (div .cse2 1) 4294967296)) .cse3 .cse4) |c_ULTIMATE.start_ULTIMATE.start_main_~#sum~0#1.offsetInt|) (* .cse4 4294967296))))) (let ((.cse5 (mod (* 2 c_~N~0Int) 4294967296))) (+ (* (mod (div .cse5 2147483648) 2) 18446744069414584320) .cse5)))))) is different from false [2022-01-11 03:26:23,933 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_51 (Array Int Int)) (|ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| Int) (|ULTIMATE.start_ULTIMATE.start_main_~a~0#1.offsetInt| Int)) (let ((.cse0 (select v_ArrVal_51 (mod (+ (mod (+ (* |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 4) (* 18446744056529682432 (mod (div |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 2147483648) 2))) 18446744073709551616) |ULTIMATE.start_ULTIMATE.start_main_~a~0#1.offsetInt|) 18446744073709551616)))) (or (not (= .cse0 2)) (= (let ((.cse3 (mod (+ |c_ULTIMATE.start_ULTIMATE.start_main_~#sum~0#1.offsetInt| 4) 18446744073709551616)) (.cse1 (select (store |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1.baseInt| v_ArrVal_51) |c_ULTIMATE.start_ULTIMATE.start_main_~#sum~0#1.baseInt|))) (let ((.cse2 (mod (+ .cse0 (* (select .cse1 .cse3) 4294967296) (select .cse1 |c_ULTIMATE.start_ULTIMATE.start_main_~#sum~0#1.offsetInt|) (* 18446744069414584320 (mod (div .cse0 2147483648) 2))) 18446744073709551616))) (let ((.cse4 (mod (div .cse2 4294967296) 4294967296))) (+ (select (store (store .cse1 |c_ULTIMATE.start_ULTIMATE.start_main_~#sum~0#1.offsetInt| (mod (div .cse2 1) 4294967296)) .cse3 .cse4) |c_ULTIMATE.start_ULTIMATE.start_main_~#sum~0#1.offsetInt|) (* .cse4 4294967296))))) (let ((.cse5 (mod (* 2 c_~N~0Int) 4294967296))) (+ (* (mod (div .cse5 2147483648) 2) 18446744069414584320) .cse5)))))) is different from true