/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_LAZY.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 14:28:55,012 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 14:28:55,013 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 14:28:55,076 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 14:28:55,077 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 14:28:55,079 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 14:28:55,081 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 14:28:55,083 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 14:28:55,096 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 14:28:55,101 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 14:28:55,101 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 14:28:55,102 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 14:28:55,102 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 14:28:55,104 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 14:28:55,105 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 14:28:55,108 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 14:28:55,108 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 14:28:55,109 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 14:28:55,110 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 14:28:55,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 14:28:55,116 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 14:28:55,117 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 14:28:55,118 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 14:28:55,119 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 14:28:55,120 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 14:28:55,120 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 14:28:55,120 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 14:28:55,121 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 14:28:55,122 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 14:28:55,122 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 14:28:55,122 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 14:28:55,123 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 14:28:55,124 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 14:28:55,124 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 14:28:55,125 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 14:28:55,126 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 14:28:55,126 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 14:28:55,126 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 14:28:55,126 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 14:28:55,127 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 14:28:55,127 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 14:28:55,128 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf [2022-01-10 14:28:55,153 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 14:28:55,153 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 14:28:55,154 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 14:28:55,154 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 14:28:55,154 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 14:28:55,154 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 14:28:55,154 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 14:28:55,155 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 14:28:55,155 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 14:28:55,155 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 14:28:55,155 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 14:28:55,157 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 14:28:55,157 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 14:28:55,157 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 14:28:55,157 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 14:28:55,157 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 14:28:55,157 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 14:28:55,157 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 14:28:55,157 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 14:28:55,157 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 14:28:55,158 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 14:28:55,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 14:28:55,158 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 14:28:55,158 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 14:28:55,158 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 14:28:55,158 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 14:28:55,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 14:28:55,158 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 14:28:55,159 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 14:28:55,159 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 14:28:55,159 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 14:28:55,159 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 14:28:55,160 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 14:28:55,160 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_LAZY WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 14:28:55,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 14:28:55,359 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 14:28:55,360 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 14:28:55,361 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 14:28:55,362 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 14:28:55,362 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lh-reducer.c [2022-01-10 14:28:55,425 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb2a24d66/e9818a180f7344a2aa1f6e42d56d9ca8/FLAG56986f7c3 [2022-01-10 14:28:55,823 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 14:28:55,831 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lh-reducer.c [2022-01-10 14:28:55,839 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb2a24d66/e9818a180f7344a2aa1f6e42d56d9ca8/FLAG56986f7c3 [2022-01-10 14:28:55,848 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb2a24d66/e9818a180f7344a2aa1f6e42d56d9ca8 [2022-01-10 14:28:55,850 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 14:28:55,851 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 14:28:55,852 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 14:28:55,852 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 14:28:55,854 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 14:28:55,854 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:28:55" (1/1) ... [2022-01-10 14:28:55,854 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@316384af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:28:55, skipping insertion in model container [2022-01-10 14:28:55,855 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:28:55" (1/1) ... [2022-01-10 14:28:55,859 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 14:28:55,876 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 14:28:56,072 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lh-reducer.c[8507,8520] [2022-01-10 14:28:56,076 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 14:28:56,083 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 14:28:56,123 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lh-reducer.c[8507,8520] [2022-01-10 14:28:56,126 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 14:28:56,135 INFO L208 MainTranslator]: Completed translation [2022-01-10 14:28:56,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:28:56 WrapperNode [2022-01-10 14:28:56,135 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 14:28:56,136 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 14:28:56,136 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 14:28:56,136 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 14:28:56,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:28:56" (1/1) ... [2022-01-10 14:28:56,162 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:28:56" (1/1) ... [2022-01-10 14:28:56,209 INFO L137 Inliner]: procedures = 21, calls = 203, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 374 [2022-01-10 14:28:56,210 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 14:28:56,210 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 14:28:56,210 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 14:28:56,210 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 14:28:56,224 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:28:56" (1/1) ... [2022-01-10 14:28:56,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:28:56" (1/1) ... [2022-01-10 14:28:56,233 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:28:56" (1/1) ... [2022-01-10 14:28:56,233 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:28:56" (1/1) ... [2022-01-10 14:28:56,265 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:28:56" (1/1) ... [2022-01-10 14:28:56,267 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:28:56" (1/1) ... [2022-01-10 14:28:56,268 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:28:56" (1/1) ... [2022-01-10 14:28:56,271 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 14:28:56,272 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 14:28:56,272 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 14:28:56,272 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 14:28:56,283 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:28:56" (1/1) ... [2022-01-10 14:28:56,290 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 14:28:56,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 14:28:56,310 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 14:28:56,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 14:28:56,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-01-10 14:28:56,335 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2022-01-10 14:28:56,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 14:28:56,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 14:28:56,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-01-10 14:28:56,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-10 14:28:56,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-01-10 14:28:56,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 14:28:56,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 14:28:56,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-10 14:28:56,486 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 14:28:56,487 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 14:28:57,032 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 14:28:57,037 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 14:28:57,037 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-10 14:28:57,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:28:57 BoogieIcfgContainer [2022-01-10 14:28:57,039 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 14:28:57,039 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 14:28:57,039 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 14:28:57,040 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 14:28:57,042 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:28:57" (1/1) ... [2022-01-10 14:28:57,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 02:28:57 BasicIcfg [2022-01-10 14:28:57,158 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 14:28:57,160 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 14:28:57,161 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 14:28:57,162 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 14:28:57,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 02:28:55" (1/4) ... [2022-01-10 14:28:57,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3af05dca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:28:57, skipping insertion in model container [2022-01-10 14:28:57,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:28:56" (2/4) ... [2022-01-10 14:28:57,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3af05dca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:28:57, skipping insertion in model container [2022-01-10 14:28:57,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:28:57" (3/4) ... [2022-01-10 14:28:57,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3af05dca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 02:28:57, skipping insertion in model container [2022-01-10 14:28:57,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 02:28:57" (4/4) ... [2022-01-10 14:28:57,167 INFO L111 eAbstractionObserver]: Analyzing ICFG aiob_4.c.v+lh-reducer.cTransformedIcfg [2022-01-10 14:28:57,170 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 14:28:57,170 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 14:28:57,206 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 14:28:57,210 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 14:28:57,210 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 14:28:57,219 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:28:57,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-01-10 14:28:57,222 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:28:57,222 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:28:57,222 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 14:28:57,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:28:57,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1807510677, now seen corresponding path program 1 times [2022-01-10 14:28:57,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:28:57,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196143342] [2022-01-10 14:28:57,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:28:57,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:28:57,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:28:57,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:28:57,618 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:28:57,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196143342] [2022-01-10 14:28:57,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196143342] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:28:57,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:28:57,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 14:28:57,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807383536] [2022-01-10 14:28:57,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:28:57,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 14:28:57,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:28:57,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 14:28:57,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 14:28:57,644 INFO L87 Difference]: Start difference. First operand has 14 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 13 states have internal predecessors, (19), 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 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:28:57,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:28:57,698 INFO L93 Difference]: Finished difference Result 32 states and 39 transitions. [2022-01-10 14:28:57,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 14:28:57,700 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2022-01-10 14:28:57,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:28:57,705 INFO L225 Difference]: With dead ends: 32 [2022-01-10 14:28:57,705 INFO L226 Difference]: Without dead ends: 17 [2022-01-10 14:28:57,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 14:28:57,709 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 16 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:28:57,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 35 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:28:57,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-01-10 14:28:57,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 14. [2022-01-10 14:28:57,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:28:57,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2022-01-10 14:28:57,727 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 8 [2022-01-10 14:28:57,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:28:57,727 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2022-01-10 14:28:57,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:28:57,728 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2022-01-10 14:28:57,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-01-10 14:28:57,728 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:28:57,728 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:28:57,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 14:28:57,728 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 14:28:57,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:28:57,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1896480885, now seen corresponding path program 1 times [2022-01-10 14:28:57,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:28:57,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600410699] [2022-01-10 14:28:57,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:28:57,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:28:57,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:28:57,850 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:28:57,851 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:28:57,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600410699] [2022-01-10 14:28:57,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600410699] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 14:28:57,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422289075] [2022-01-10 14:28:57,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:28:57,852 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 14:28:57,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 14:28:57,853 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) [2022-01-10 14:28:57,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-10 14:28:58,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:28:58,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 670 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-10 14:28:58,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 14:28:58,360 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:28:58,360 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 14:28:58,417 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:28:58,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422289075] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 14:28:58,418 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 14:28:58,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-01-10 14:28:58,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092628709] [2022-01-10 14:28:58,418 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 14:28:58,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 14:28:58,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:28:58,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 14:28:58,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-01-10 14:28:58,420 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:29:00,439 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 14:29:00,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:29:00,530 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2022-01-10 14:29:00,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 14:29:00,530 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 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 [2022-01-10 14:29:00,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:29:00,531 INFO L225 Difference]: With dead ends: 34 [2022-01-10 14:29:00,531 INFO L226 Difference]: Without dead ends: 31 [2022-01-10 14:29:00,531 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2022-01-10 14:29:00,532 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 36 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 18 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-01-10 14:29:00,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 22 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 45 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-01-10 14:29:00,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-01-10 14:29:00,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2022-01-10 14:29:00,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.0357142857142858) internal successors, (29), 28 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:29:00,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2022-01-10 14:29:00,536 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 13 [2022-01-10 14:29:00,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:29:00,536 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2022-01-10 14:29:00,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:29:00,536 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2022-01-10 14:29:00,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-01-10 14:29:00,537 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:29:00,537 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2022-01-10 14:29:00,555 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-01-10 14:29:00,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 14:29:00,746 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 14:29:00,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:29:00,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1734886549, now seen corresponding path program 2 times [2022-01-10 14:29:00,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:29:00,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823525504] [2022-01-10 14:29:00,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:29:00,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:29:00,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:29:00,889 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:29:00,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:29:00,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823525504] [2022-01-10 14:29:00,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823525504] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 14:29:00,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264776328] [2022-01-10 14:29:00,889 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-10 14:29:00,889 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 14:29:00,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 14:29:00,890 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 14:29:00,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-10 14:29:01,398 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-10 14:29:01,398 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-10 14:29:01,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 850 conjuncts, 22 conjunts are in the unsatisfiable core [2022-01-10 14:29:01,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 14:29:01,542 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:29:01,542 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 14:29:01,923 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:29:01,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264776328] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 14:29:01,924 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 14:29:01,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 11] total 23 [2022-01-10 14:29:01,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057630699] [2022-01-10 14:29:01,924 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 14:29:01,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-10 14:29:01,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:29:01,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-10 14:29:01,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2022-01-10 14:29:01,925 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand has 23 states, 23 states have (on average 3.0869565217391304) internal successors, (71), 23 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:29:03,970 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 14:29:05,979 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 14:29:07,990 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 14:29:10,000 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 14:29:11,591 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 14:29:12,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:29:12,119 INFO L93 Difference]: Finished difference Result 64 states and 69 transitions. [2022-01-10 14:29:12,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-10 14:29:12,120 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.0869565217391304) internal successors, (71), 23 states have internal predecessors, (71), 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 28 [2022-01-10 14:29:12,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:29:12,121 INFO L225 Difference]: With dead ends: 64 [2022-01-10 14:29:12,121 INFO L226 Difference]: Without dead ends: 61 [2022-01-10 14:29:12,121 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=351, Invalid=909, Unknown=0, NotChecked=0, Total=1260 [2022-01-10 14:29:12,122 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 141 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 78 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2022-01-10 14:29:12,122 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 42 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 205 Invalid, 4 Unknown, 0 Unchecked, 9.8s Time] [2022-01-10 14:29:12,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-01-10 14:29:12,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 59. [2022-01-10 14:29:12,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 58 states have (on average 1.0172413793103448) internal successors, (59), 58 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) [2022-01-10 14:29:12,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 59 transitions. [2022-01-10 14:29:12,127 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 59 transitions. Word has length 28 [2022-01-10 14:29:12,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:29:12,127 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 59 transitions. [2022-01-10 14:29:12,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.0869565217391304) internal successors, (71), 23 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:29:12,127 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 59 transitions. [2022-01-10 14:29:12,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-10 14:29:12,128 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:29:12,128 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 1, 1, 1, 1, 1, 1] [2022-01-10 14:29:12,138 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-01-10 14:29:12,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-01-10 14:29:12,338 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 14:29:12,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:29:12,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1969387371, now seen corresponding path program 3 times [2022-01-10 14:29:12,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:29:12,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984519740] [2022-01-10 14:29:12,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:29:12,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:29:12,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:29:12,671 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:29:12,671 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:29:12,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984519740] [2022-01-10 14:29:12,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984519740] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 14:29:12,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2008448014] [2022-01-10 14:29:12,672 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-10 14:29:12,672 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 14:29:12,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 14:29:12,680 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 14:29:12,681 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-10 14:29:13,370 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-01-10 14:29:13,370 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-10 14:29:13,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 730 conjuncts, 24 conjunts are in the unsatisfiable core [2022-01-10 14:29:13,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 14:29:13,839 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-10 14:29:13,840 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2022-01-10 14:29:16,012 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 27 proven. 39 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2022-01-10 14:29:16,013 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 14:29:17,476 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2022-01-10 14:29:17,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2008448014] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 14:29:17,477 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 14:29:17,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9, 9] total 28 [2022-01-10 14:29:17,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016524397] [2022-01-10 14:29:17,477 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 14:29:17,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-10 14:29:17,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:29:17,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-10 14:29:17,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=613, Unknown=0, NotChecked=0, Total=756 [2022-01-10 14:29:17,480 INFO L87 Difference]: Start difference. First operand 59 states and 59 transitions. Second operand has 28 states, 28 states have (on average 3.0714285714285716) internal successors, (86), 28 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:29:21,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:29:21,067 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2022-01-10 14:29:21,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-10 14:29:21,068 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.0714285714285716) internal successors, (86), 28 states have internal predecessors, (86), 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 [2022-01-10 14:29:21,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:29:21,068 INFO L225 Difference]: With dead ends: 67 [2022-01-10 14:29:21,068 INFO L226 Difference]: Without dead ends: 0 [2022-01-10 14:29:21,069 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 103 SyntacticMatches, 10 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 645 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=756, Invalid=2324, Unknown=0, NotChecked=0, Total=3080 [2022-01-10 14:29:21,070 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 183 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 68 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:29:21,070 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 8 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 457 Invalid, 0 Unknown, 68 Unchecked, 1.0s Time] [2022-01-10 14:29:21,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-10 14:29:21,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-10 14:29:21,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:29:21,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-10 14:29:21,071 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2022-01-10 14:29:21,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:29:21,071 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-10 14:29:21,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.0714285714285716) internal successors, (86), 28 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:29:21,071 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-10 14:29:21,071 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-10 14:29:21,073 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 14:29:21,081 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-01-10 14:29:21,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 14:29:21,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-10 14:29:21,692 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-01-10 14:29:21,692 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-01-10 14:29:21,692 INFO L858 garLoopResultBuilder]: For program point L161(lines 161 236) no Hoare annotation was computed. [2022-01-10 14:29:21,692 INFO L861 garLoopResultBuilder]: At program point L233(lines 133 237) the Hoare annotation is: true [2022-01-10 14:29:21,692 INFO L854 garLoopResultBuilder]: At program point L202(lines 167 235) the Hoare annotation is: (let ((.cse0 (= (select (select |#memory_intInt| |ULTIMATE.start_ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0#1.baseInt|) (mod (+ |ULTIMATE.start_ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0#1.offsetInt| 492) 18446744073709551616)) 0)) (.cse1 (<= 0 |ULTIMATE.start_ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0#1.offsetInt|)) (.cse2 (<= |ULTIMATE.start_ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0#1.offsetInt| 0))) (or (and (<= ~Id_MCDC_93~0Int 0) .cse0 (= |ULTIMATE.start_ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0#1Int| 0) .cse1 .cse2) (and (<= 0 |ULTIMATE.start_ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0#1Int|) (exists ((|aux_div_ULTIMATE.start_ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0#1.offsetInt_110| Int) (|aux_div_v_ULTIMATE.start_ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0#1Int_13_95| Int) (|aux_mod_aux_mod_ULTIMATE.start_ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0#1.offsetInt_110_241| Int) (|aux_div_aux_mod_ULTIMATE.start_ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0#1.offsetInt_110_241| Int)) (let ((.cse6 (mod (+ (* 12 |ULTIMATE.start_ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0#1Int|) (* |aux_div_v_ULTIMATE.start_ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0#1Int_13_95| 51539607552) 18446744073709551604) 18446744073709551616)) (.cse9 (* |aux_div_aux_mod_ULTIMATE.start_ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0#1.offsetInt_110_241| 18446744073709551616))) (let ((.cse4 (+ .cse9 |aux_mod_aux_mod_ULTIMATE.start_ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0#1.offsetInt_110_241| (* |aux_div_ULTIMATE.start_ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0#1.offsetInt_110| 18446744073709551616))) (.cse3 (+ 18446744073709551616 .cse6)) (.cse5 (+ .cse9 |aux_mod_aux_mod_ULTIMATE.start_ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0#1.offsetInt_110_241|)) (.cse7 (+ 18446744073709551124 .cse6)) (.cse8 (+ (* |aux_div_v_ULTIMATE.start_ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0#1Int_13_95| 4294967296) |ULTIMATE.start_ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0#1Int|))) (and (<= .cse3 .cse4) (<= .cse4 .cse3) (< .cse5 (+ 36893488147419102740 .cse6)) (<= .cse7 .cse5) (< .cse8 43) (not (= .cse9 .cse7)) (< |aux_mod_aux_mod_ULTIMATE.start_ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0#1.offsetInt_110_241| 18446744073709551616) (<= 0 |aux_mod_aux_mod_ULTIMATE.start_ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0#1.offsetInt_110_241|) (<= 1 .cse8))))) .cse0 .cse1 .cse2 (< |ULTIMATE.start_ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0#1Int| 4294967296) (< ~Id_MCDC_93~0Int 42)))) [2022-01-10 14:29:21,692 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-01-10 14:29:21,692 INFO L858 garLoopResultBuilder]: For program point L180(lines 180 234) no Hoare annotation was computed. [2022-01-10 14:29:21,692 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-01-10 14:29:21,692 INFO L858 garLoopResultBuilder]: For program point L182(lines 182 229) no Hoare annotation was computed. [2022-01-10 14:29:21,692 INFO L858 garLoopResultBuilder]: For program point L190(lines 190 208) no Hoare annotation was computed. [2022-01-10 14:29:21,693 INFO L858 garLoopResultBuilder]: For program point L219(lines 219 227) no Hoare annotation was computed. [2022-01-10 14:29:21,693 INFO L858 garLoopResultBuilder]: For program point L197(lines 197 207) no Hoare annotation was computed. [2022-01-10 14:29:21,693 INFO L858 garLoopResultBuilder]: For program point L221(line 221) no Hoare annotation was computed. [2022-01-10 14:29:21,693 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 221) no Hoare annotation was computed. [2022-01-10 14:29:21,695 INFO L732 BasicCegarLoop]: Path program histogram: [3, 1] [2022-01-10 14:29:21,695 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 14:29:21,700 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Cannot translate AuxVars back to Bitvector Sort |aux_div_v_ULTIMATE.start_ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0#1Int_13_95| at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.bvinttranslation.IntToBvBackTranslation.convert(IntToBvBackTranslation.java:88) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation.IcfgTransformationObserver.lambda$0(IcfgTransformationObserver.java:355) at de.uni_freiburg.informatik.ultimate.icfgtransformer.IcfgTransformationBacktranslator.translateExpression(IcfgTransformationBacktranslator.java:113) at de.uni_freiburg.informatik.ultimate.icfgtransformer.IcfgTransformationBacktranslator.translateExpression(IcfgTransformationBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:453) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:192) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-01-10 14:29:21,705 INFO L158 Benchmark]: Toolchain (without parser) took 25854.09ms. Allocated memory was 219.2MB in the beginning and 391.1MB in the end (delta: 172.0MB). Free memory was 163.4MB in the beginning and 327.6MB in the end (delta: -164.3MB). Peak memory consumption was 8.8MB. Max. memory is 8.0GB. [2022-01-10 14:29:21,706 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 219.2MB. Free memory is still 180.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 14:29:21,707 INFO L158 Benchmark]: CACSL2BoogieTranslator took 283.77ms. Allocated memory was 219.2MB in the beginning and 312.5MB in the end (delta: 93.3MB). Free memory was 163.2MB in the beginning and 276.9MB in the end (delta: -113.7MB). Peak memory consumption was 9.2MB. Max. memory is 8.0GB. [2022-01-10 14:29:21,707 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.85ms. Allocated memory is still 312.5MB. Free memory was 276.9MB in the beginning and 273.4MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-10 14:29:21,707 INFO L158 Benchmark]: Boogie Preprocessor took 61.09ms. Allocated memory is still 312.5MB. Free memory was 273.4MB in the beginning and 270.2MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-10 14:29:21,707 INFO L158 Benchmark]: RCFGBuilder took 767.18ms. Allocated memory is still 312.5MB. Free memory was 270.2MB in the beginning and 186.3MB in the end (delta: 83.9MB). Peak memory consumption was 83.9MB. Max. memory is 8.0GB. [2022-01-10 14:29:21,708 INFO L158 Benchmark]: IcfgTransformer took 118.92ms. Allocated memory is still 312.5MB. Free memory was 186.3MB in the beginning and 176.9MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-01-10 14:29:21,708 INFO L158 Benchmark]: TraceAbstraction took 24543.92ms. Allocated memory was 312.5MB in the beginning and 391.1MB in the end (delta: 78.6MB). Free memory was 176.4MB in the beginning and 327.6MB in the end (delta: -151.2MB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 14:29:21,709 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 219.2MB. Free memory is still 180.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 283.77ms. Allocated memory was 219.2MB in the beginning and 312.5MB in the end (delta: 93.3MB). Free memory was 163.2MB in the beginning and 276.9MB in the end (delta: -113.7MB). Peak memory consumption was 9.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 73.85ms. Allocated memory is still 312.5MB. Free memory was 276.9MB in the beginning and 273.4MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 61.09ms. Allocated memory is still 312.5MB. Free memory was 273.4MB in the beginning and 270.2MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 767.18ms. Allocated memory is still 312.5MB. Free memory was 270.2MB in the beginning and 186.3MB in the end (delta: 83.9MB). Peak memory consumption was 83.9MB. Max. memory is 8.0GB. * IcfgTransformer took 118.92ms. Allocated memory is still 312.5MB. Free memory was 186.3MB in the beginning and 176.9MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 24543.92ms. Allocated memory was 312.5MB in the beginning and 391.1MB in the end (delta: 78.6MB). Free memory was 176.4MB in the beginning and 327.6MB in the end (delta: -151.2MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 221]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 24.5s, OverallIterations: 4, TraceHistogramMax: 11, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 16.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 5 mSolverCounterUnknown, 376 SdHoareTripleChecker+Valid, 12.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 376 mSDsluCounter, 107 SdHoareTripleChecker+Invalid, 12.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 68 IncrementalHoareTripleChecker+Unchecked, 78 mSDsCounter, 182 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 720 IncrementalHoareTripleChecker+Invalid, 975 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 182 mSolverCounterUnsat, 29 mSDtfsCounter, 720 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 283 GetRequests, 168 SyntacticMatches, 12 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 955 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred in iteration=3, InterpolantAutomatonStates: 63, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 7 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 17 NumberOfFragments, 170 HoareAnnotationTreeSize, 2 FomulaSimplifications, 135 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 865 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 206 NumberOfCodeBlocks, 166 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 295 ConstructedInterpolants, 50 QuantifiedInterpolants, 4932 SizeOfPredicates, 15 NumberOfNonLiveVariables, 2250 ConjunctsInSsa, 53 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 405/900 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ExceptionOrErrorResult: UnsupportedOperationException: Cannot translate AuxVars back to Bitvector Sort |aux_div_v_ULTIMATE.start_ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0#1Int_13_95| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Cannot translate AuxVars back to Bitvector Sort |aux_div_v_ULTIMATE.start_ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0#1Int_13_95|: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.bvinttranslation.IntToBvBackTranslation.convert(IntToBvBackTranslation.java:88) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-01-10 14:29:21,727 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...