/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_BITWISE.epf -i ../../../trunk/examples/svcomp/heap-manipulation/bubble_sort_linux-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 11:50:52,917 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 11:50:52,918 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 11:50:52,968 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 11:50:52,983 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 11:50:52,984 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 11:50:52,985 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 11:50:52,986 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 11:50:52,987 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 11:50:52,991 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 11:50:52,991 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 11:50:52,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 11:50:52,993 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 11:50:52,995 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 11:50:52,996 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 11:50:52,997 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 11:50:52,998 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 11:50:52,998 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 11:50:53,001 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 11:50:53,004 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 11:50:53,005 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 11:50:53,020 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 11:50:53,020 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 11:50:53,021 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 11:50:53,022 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 11:50:53,022 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 11:50:53,023 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 11:50:53,023 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 11:50:53,023 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 11:50:53,024 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 11:50:53,024 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 11:50:53,024 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 11:50:53,025 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 11:50:53,025 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 11:50:53,026 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 11:50:53,026 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 11:50:53,026 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 11:50:53,026 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 11:50:53,027 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 11:50:53,027 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 11:50:53,027 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 11:50:53,028 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 11:50:53,041 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 11:50:53,041 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 11:50:53,042 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 11:50:53,042 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 11:50:53,043 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 11:50:53,043 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 11:50:53,047 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 11:50:53,048 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 11:50:53,048 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 11:50:53,048 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 11:50:53,048 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 11:50:53,048 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 11:50:53,049 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 11:50:53,049 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 11:50:53,049 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 11:50:53,049 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 11:50:53,049 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 11:50:53,049 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 11:50:53,049 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 11:50:53,049 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 11:50:53,049 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 11:50:53,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 11:50:53,049 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 11:50:53,050 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 11:50:53,050 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 11:50:53,050 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 11:50:53,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 11:50:53,050 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 11:50:53,050 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 11:50:53,050 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 11:50:53,050 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 11:50:53,050 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 11:50:53,052 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 11:50:53,052 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 11:50:53,248 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 11:50:53,270 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 11:50:53,271 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 11:50:53,272 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 11:50:53,273 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 11:50:53,274 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/bubble_sort_linux-1.i [2022-01-10 11:50:53,325 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/588bd9dbb/b6776a36435b4797becd8a6368528677/FLAG9b8760c60 [2022-01-10 11:50:53,724 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 11:50:53,725 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/bubble_sort_linux-1.i [2022-01-10 11:50:53,735 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/588bd9dbb/b6776a36435b4797becd8a6368528677/FLAG9b8760c60 [2022-01-10 11:50:53,743 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/588bd9dbb/b6776a36435b4797becd8a6368528677 [2022-01-10 11:50:53,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 11:50:53,746 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 11:50:53,748 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 11:50:53,749 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 11:50:53,751 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 11:50:53,751 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:50:53" (1/1) ... [2022-01-10 11:50:53,752 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@449b5340 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:50:53, skipping insertion in model container [2022-01-10 11:50:53,752 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:50:53" (1/1) ... [2022-01-10 11:50:53,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 11:50:53,790 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 11:50:54,052 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/bubble_sort_linux-1.i[33822,33835] [2022-01-10 11:50:54,085 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 11:50:54,096 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 11:50:54,107 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 11:50:54,130 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/bubble_sort_linux-1.i[33822,33835] [2022-01-10 11:50:54,141 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 11:50:54,148 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 11:50:54,166 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/bubble_sort_linux-1.i[33822,33835] [2022-01-10 11:50:54,176 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 11:50:54,209 INFO L208 MainTranslator]: Completed translation [2022-01-10 11:50:54,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:50:54 WrapperNode [2022-01-10 11:50:54,209 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 11:50:54,210 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 11:50:54,210 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 11:50:54,210 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 11:50:54,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:50:54" (1/1) ... [2022-01-10 11:50:54,248 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:50:54" (1/1) ... [2022-01-10 11:50:54,297 INFO L137 Inliner]: procedures = 235, calls = 75, calls flagged for inlining = 33, calls inlined = 51, statements flattened = 545 [2022-01-10 11:50:54,298 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 11:50:54,298 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 11:50:54,298 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 11:50:54,298 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 11:50:54,304 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:50:54" (1/1) ... [2022-01-10 11:50:54,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:50:54" (1/1) ... [2022-01-10 11:50:54,308 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:50:54" (1/1) ... [2022-01-10 11:50:54,308 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:50:54" (1/1) ... [2022-01-10 11:50:54,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:50:54" (1/1) ... [2022-01-10 11:50:54,338 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:50:54" (1/1) ... [2022-01-10 11:50:54,351 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:50:54" (1/1) ... [2022-01-10 11:50:54,359 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 11:50:54,359 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 11:50:54,360 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 11:50:54,360 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 11:50:54,361 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:50:54" (1/1) ... [2022-01-10 11:50:54,366 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 11:50:54,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 11:50:54,382 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 11:50:54,390 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 11:50:54,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-01-10 11:50:54,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-01-10 11:50:54,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-10 11:50:54,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-01-10 11:50:54,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-01-10 11:50:54,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 11:50:54,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-10 11:50:54,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 11:50:54,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-01-10 11:50:54,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 11:50:54,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 11:50:54,522 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 11:50:54,524 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 11:50:55,399 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 11:50:55,405 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 11:50:55,405 INFO L299 CfgBuilder]: Removed 76 assume(true) statements. [2022-01-10 11:50:55,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:50:55 BoogieIcfgContainer [2022-01-10 11:50:55,407 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 11:50:55,407 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 11:50:55,407 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 11:50:55,423 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 11:50:55,425 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:50:55" (1/1) ... [2022-01-10 11:50:55,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:50:55 BasicIcfg [2022-01-10 11:50:55,589 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 11:50:55,590 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 11:50:55,590 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 11:50:55,593 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 11:50:55,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 11:50:53" (1/4) ... [2022-01-10 11:50:55,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c057316 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:50:55, skipping insertion in model container [2022-01-10 11:50:55,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:50:54" (2/4) ... [2022-01-10 11:50:55,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c057316 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:50:55, skipping insertion in model container [2022-01-10 11:50:55,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:50:55" (3/4) ... [2022-01-10 11:50:55,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c057316 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 11:50:55, skipping insertion in model container [2022-01-10 11:50:55,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:50:55" (4/4) ... [2022-01-10 11:50:55,603 INFO L111 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux-1.iTransformedIcfg [2022-01-10 11:50:55,609 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 11:50:55,609 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2022-01-10 11:50:55,650 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 11:50:55,656 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 11:50:55,656 INFO L340 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2022-01-10 11:50:55,670 INFO L276 IsEmpty]: Start isEmpty. Operand has 235 states, 200 states have (on average 1.76) internal successors, (352), 234 states have internal predecessors, (352), 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 11:50:55,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-01-10 11:50:55,674 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 11:50:55,674 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-01-10 11:50:55,675 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-01-10 11:50:55,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 11:50:55,679 INFO L85 PathProgramCache]: Analyzing trace with hash 116739178, now seen corresponding path program 1 times [2022-01-10 11:50:55,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 11:50:55,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621102941] [2022-01-10 11:50:55,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 11:50:55,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 11:50:55,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 11:50:55,823 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 11:50:55,823 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 11:50:55,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621102941] [2022-01-10 11:50:55,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621102941] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 11:50:55,824 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 11:50:55,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 11:50:55,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627016164] [2022-01-10 11:50:55,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 11:50:55,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 11:50:55,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 11:50:55,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 11:50:55,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 11:50:55,856 INFO L87 Difference]: Start difference. First operand has 235 states, 200 states have (on average 1.76) internal successors, (352), 234 states have internal predecessors, (352), 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 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 11:50:55,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 11:50:55,893 INFO L93 Difference]: Finished difference Result 426 states and 660 transitions. [2022-01-10 11:50:55,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 11:50:55,896 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2022-01-10 11:50:55,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 11:50:55,910 INFO L225 Difference]: With dead ends: 426 [2022-01-10 11:50:55,910 INFO L226 Difference]: Without dead ends: 185 [2022-01-10 11:50:55,917 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 [2022-01-10 11:50:55,920 INFO L933 BasicCegarLoop]: 199 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, 199 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 11:50:55,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 11:50:55,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-01-10 11:50:55,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2022-01-10 11:50:55,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 155 states have (on average 1.2258064516129032) internal successors, (190), 184 states have internal predecessors, (190), 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 11:50:55,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 190 transitions. [2022-01-10 11:50:55,982 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 190 transitions. Word has length 6 [2022-01-10 11:50:55,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 11:50:55,982 INFO L470 AbstractCegarLoop]: Abstraction has 185 states and 190 transitions. [2022-01-10 11:50:55,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 11:50:55,983 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 190 transitions. [2022-01-10 11:50:55,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-01-10 11:50:55,984 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 11:50:55,984 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 11:50:55,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 11:50:55,984 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-01-10 11:50:55,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 11:50:55,986 INFO L85 PathProgramCache]: Analyzing trace with hash -2093555088, now seen corresponding path program 1 times [2022-01-10 11:50:55,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 11:50:55,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137376033] [2022-01-10 11:50:55,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 11:50:55,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 11:50:56,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 11:50:56,214 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 11:50:56,215 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 11:50:56,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137376033] [2022-01-10 11:50:56,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137376033] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 11:50:56,215 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 11:50:56,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 11:50:56,216 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032891922] [2022-01-10 11:50:56,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 11:50:56,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 11:50:56,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 11:50:56,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 11:50:56,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 11:50:56,221 INFO L87 Difference]: Start difference. First operand 185 states and 190 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 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 11:50:57,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 11:50:57,354 INFO L93 Difference]: Finished difference Result 188 states and 193 transitions. [2022-01-10 11:50:57,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 11:50:57,354 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 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) Word has length 14 [2022-01-10 11:50:57,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 11:50:57,355 INFO L225 Difference]: With dead ends: 188 [2022-01-10 11:50:57,355 INFO L226 Difference]: Without dead ends: 184 [2022-01-10 11:50:57,356 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-10 11:50:57,357 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 203 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-10 11:50:57,357 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 415 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-10 11:50:57,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2022-01-10 11:50:57,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 181. [2022-01-10 11:50:57,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 153 states have (on average 1.2156862745098038) internal successors, (186), 180 states have internal predecessors, (186), 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 11:50:57,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 186 transitions. [2022-01-10 11:50:57,364 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 186 transitions. Word has length 14 [2022-01-10 11:50:57,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 11:50:57,364 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 186 transitions. [2022-01-10 11:50:57,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 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 11:50:57,364 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 186 transitions. [2022-01-10 11:50:57,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-10 11:50:57,365 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 11:50:57,365 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 11:50:57,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 11:50:57,365 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-01-10 11:50:57,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 11:50:57,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1877687057, now seen corresponding path program 1 times [2022-01-10 11:50:57,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 11:50:57,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904866492] [2022-01-10 11:50:57,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 11:50:57,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 11:50:57,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 11:50:57,769 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 11:50:57,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 11:50:57,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904866492] [2022-01-10 11:50:57,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904866492] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 11:50:57,770 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 11:50:57,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 11:50:57,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179744762] [2022-01-10 11:50:57,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 11:50:57,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 11:50:57,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 11:50:57,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 11:50:57,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-01-10 11:50:57,771 INFO L87 Difference]: Start difference. First operand 181 states and 186 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 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 11:51:00,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 11:51:00,570 INFO L93 Difference]: Finished difference Result 359 states and 369 transitions. [2022-01-10 11:51:00,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 11:51:00,570 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 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 17 [2022-01-10 11:51:00,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 11:51:00,571 INFO L225 Difference]: With dead ends: 359 [2022-01-10 11:51:00,571 INFO L226 Difference]: Without dead ends: 355 [2022-01-10 11:51:00,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-01-10 11:51:00,573 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 186 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 927 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-01-10 11:51:00,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [186 Valid, 927 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-01-10 11:51:00,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2022-01-10 11:51:00,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 256. [2022-01-10 11:51:00,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 228 states have (on average 1.2236842105263157) internal successors, (279), 255 states have internal predecessors, (279), 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 11:51:00,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 279 transitions. [2022-01-10 11:51:00,584 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 279 transitions. Word has length 17 [2022-01-10 11:51:00,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 11:51:00,584 INFO L470 AbstractCegarLoop]: Abstraction has 256 states and 279 transitions. [2022-01-10 11:51:00,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 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 11:51:00,584 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 279 transitions. [2022-01-10 11:51:00,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-01-10 11:51:00,585 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 11:51:00,585 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] [2022-01-10 11:51:00,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 11:51:00,585 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-01-10 11:51:00,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 11:51:00,586 INFO L85 PathProgramCache]: Analyzing trace with hash -519208647, now seen corresponding path program 1 times [2022-01-10 11:51:00,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 11:51:00,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475457671] [2022-01-10 11:51:00,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 11:51:00,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 11:51:00,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 11:51:01,241 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 11:51:01,241 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 11:51:01,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475457671] [2022-01-10 11:51:01,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475457671] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 11:51:01,242 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 11:51:01,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 11:51:01,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531918606] [2022-01-10 11:51:01,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 11:51:01,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 11:51:01,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 11:51:01,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 11:51:01,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-01-10 11:51:01,243 INFO L87 Difference]: Start difference. First operand 256 states and 279 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 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 11:51:03,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 11:51:03,602 INFO L93 Difference]: Finished difference Result 355 states and 365 transitions. [2022-01-10 11:51:03,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 11:51:03,602 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 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 20 [2022-01-10 11:51:03,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 11:51:03,603 INFO L225 Difference]: With dead ends: 355 [2022-01-10 11:51:03,603 INFO L226 Difference]: Without dead ends: 351 [2022-01-10 11:51:03,604 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-01-10 11:51:03,604 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 175 mSDsluCounter, 788 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 933 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-01-10 11:51:03,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 933 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-01-10 11:51:03,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2022-01-10 11:51:03,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 259. [2022-01-10 11:51:03,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 231 states have (on average 1.2164502164502164) internal successors, (281), 258 states have internal predecessors, (281), 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 11:51:03,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 281 transitions. [2022-01-10 11:51:03,614 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 281 transitions. Word has length 20 [2022-01-10 11:51:03,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 11:51:03,614 INFO L470 AbstractCegarLoop]: Abstraction has 259 states and 281 transitions. [2022-01-10 11:51:03,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 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 11:51:03,615 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 281 transitions. [2022-01-10 11:51:03,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-01-10 11:51:03,615 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 11:51:03,615 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 11:51:03,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 11:51:03,616 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-01-10 11:51:03,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 11:51:03,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1565715590, now seen corresponding path program 1 times [2022-01-10 11:51:03,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 11:51:03,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6659399] [2022-01-10 11:51:03,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 11:51:03,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 11:51:03,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 11:51:04,033 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 11:51:04,034 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 11:51:04,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6659399] [2022-01-10 11:51:04,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6659399] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 11:51:04,034 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 11:51:04,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-10 11:51:04,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126749361] [2022-01-10 11:51:04,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 11:51:04,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-10 11:51:04,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 11:51:04,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-10 11:51:04,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-01-10 11:51:04,035 INFO L87 Difference]: Start difference. First operand 259 states and 281 transitions. Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 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) [2022-01-10 11:51:06,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 11:51:06,194 INFO L93 Difference]: Finished difference Result 351 states and 361 transitions. [2022-01-10 11:51:06,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 11:51:06,195 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 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) Word has length 23 [2022-01-10 11:51:06,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 11:51:06,196 INFO L225 Difference]: With dead ends: 351 [2022-01-10 11:51:06,196 INFO L226 Difference]: Without dead ends: 347 [2022-01-10 11:51:06,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2022-01-10 11:51:06,197 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 443 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 816 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-01-10 11:51:06,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [443 Valid, 816 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-01-10 11:51:06,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2022-01-10 11:51:06,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 262. [2022-01-10 11:51:06,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 234 states have (on average 1.2094017094017093) internal successors, (283), 261 states have internal predecessors, (283), 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 11:51:06,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 283 transitions. [2022-01-10 11:51:06,212 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 283 transitions. Word has length 23 [2022-01-10 11:51:06,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 11:51:06,213 INFO L470 AbstractCegarLoop]: Abstraction has 262 states and 283 transitions. [2022-01-10 11:51:06,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 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) [2022-01-10 11:51:06,213 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 283 transitions. [2022-01-10 11:51:06,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-10 11:51:06,213 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 11:51:06,213 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 11:51:06,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 11:51:06,214 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-01-10 11:51:06,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 11:51:06,214 INFO L85 PathProgramCache]: Analyzing trace with hash -886438074, now seen corresponding path program 1 times [2022-01-10 11:51:06,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 11:51:06,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892098470] [2022-01-10 11:51:06,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 11:51:06,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 11:51:06,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 11:51:07,028 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 11:51:07,028 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 11:51:07,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892098470] [2022-01-10 11:51:07,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892098470] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 11:51:07,029 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 11:51:07,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-10 11:51:07,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063787513] [2022-01-10 11:51:07,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 11:51:07,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-10 11:51:07,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 11:51:07,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-10 11:51:07,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-01-10 11:51:07,030 INFO L87 Difference]: Start difference. First operand 262 states and 283 transitions. Second operand has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 10 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) [2022-01-10 11:51:09,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 11:51:09,885 INFO L93 Difference]: Finished difference Result 347 states and 357 transitions. [2022-01-10 11:51:09,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 11:51:09,886 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 10 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) Word has length 26 [2022-01-10 11:51:09,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 11:51:09,887 INFO L225 Difference]: With dead ends: 347 [2022-01-10 11:51:09,887 INFO L226 Difference]: Without dead ends: 343 [2022-01-10 11:51:09,887 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2022-01-10 11:51:09,888 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 268 mSDsluCounter, 937 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 1059 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-01-10 11:51:09,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [268 Valid, 1059 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-01-10 11:51:09,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2022-01-10 11:51:09,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 265. [2022-01-10 11:51:09,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 237 states have (on average 1.2025316455696202) internal successors, (285), 264 states have internal predecessors, (285), 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 11:51:09,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 285 transitions. [2022-01-10 11:51:09,908 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 285 transitions. Word has length 26 [2022-01-10 11:51:09,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 11:51:09,909 INFO L470 AbstractCegarLoop]: Abstraction has 265 states and 285 transitions. [2022-01-10 11:51:09,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 10 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) [2022-01-10 11:51:09,909 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 285 transitions. [2022-01-10 11:51:09,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-10 11:51:09,910 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 11:51:09,910 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 11:51:09,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 11:51:09,910 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-01-10 11:51:09,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 11:51:09,910 INFO L85 PathProgramCache]: Analyzing trace with hash -474556024, now seen corresponding path program 1 times [2022-01-10 11:51:09,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 11:51:09,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875407529] [2022-01-10 11:51:09,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 11:51:09,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 11:51:10,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 11:51:10,463 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 11:51:10,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 11:51:10,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875407529] [2022-01-10 11:51:10,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875407529] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 11:51:10,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [42470406] [2022-01-10 11:51:10,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 11:51:10,464 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 11:51:10,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 11:51:10,465 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 11:51:10,466 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 11:51:10,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 11:51:10,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 67 conjunts are in the unsatisfiable core [2022-01-10 11:51:10,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 11:51:10,848 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-01-10 11:51:10,849 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 23 [2022-01-10 11:51:10,961 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-10 11:51:10,961 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 13 treesize of output 13 [2022-01-10 11:51:11,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 11:51:11,037 INFO L353 Elim1Store]: treesize reduction 52, result has 32.5 percent of original size [2022-01-10 11:51:11,038 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 67 [2022-01-10 11:51:11,045 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2022-01-10 11:51:11,052 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2022-01-10 11:51:11,182 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-01-10 11:51:11,184 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-01-10 11:51:11,253 INFO L353 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-01-10 11:51:11,254 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 22 [2022-01-10 11:51:11,348 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2022-01-10 11:51:11,368 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-10 11:51:11,369 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 11:51:11,510 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-01-10 11:51:11,670 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-10 11:51:11,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [42470406] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 11:51:11,671 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 11:51:11,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 7] total 23 [2022-01-10 11:51:11,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856658791] [2022-01-10 11:51:11,671 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 11:51:11,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-10 11:51:11,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 11:51:11,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-10 11:51:11,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=477, Unknown=1, NotChecked=0, Total=552 [2022-01-10 11:51:11,672 INFO L87 Difference]: Start difference. First operand 265 states and 285 transitions. Second operand has 24 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 23 states have internal predecessors, (76), 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 11:51:14,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 11:51:14,921 INFO L93 Difference]: Finished difference Result 352 states and 375 transitions. [2022-01-10 11:51:14,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 11:51:14,922 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 23 states have internal predecessors, (76), 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 26 [2022-01-10 11:51:14,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 11:51:14,923 INFO L225 Difference]: With dead ends: 352 [2022-01-10 11:51:14,923 INFO L226 Difference]: Without dead ends: 348 [2022-01-10 11:51:14,923 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 36 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=188, Invalid=741, Unknown=1, NotChecked=0, Total=930 [2022-01-10 11:51:14,924 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 1333 mSDsluCounter, 1086 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1333 SdHoareTripleChecker+Valid, 1225 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 24 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-01-10 11:51:14,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1333 Valid, 1225 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 616 Invalid, 0 Unknown, 24 Unchecked, 2.9s Time] [2022-01-10 11:51:14,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2022-01-10 11:51:14,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 278. [2022-01-10 11:51:14,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 251 states have (on average 1.199203187250996) internal successors, (301), 277 states have internal predecessors, (301), 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 11:51:14,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 301 transitions. [2022-01-10 11:51:14,936 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 301 transitions. Word has length 26 [2022-01-10 11:51:14,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 11:51:14,937 INFO L470 AbstractCegarLoop]: Abstraction has 278 states and 301 transitions. [2022-01-10 11:51:14,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 23 states have internal predecessors, (76), 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 11:51:14,937 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 301 transitions. [2022-01-10 11:51:14,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-01-10 11:51:14,937 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 11:51:14,937 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 11:51:14,959 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 11:51:15,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 11:51:15,155 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-01-10 11:51:15,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 11:51:15,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1879117601, now seen corresponding path program 1 times [2022-01-10 11:51:15,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 11:51:15,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609915077] [2022-01-10 11:51:15,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 11:51:15,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 11:51:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat