/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-parallel-sum-1.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 18:56:09,208 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 18:56:09,209 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 18:56:09,249 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-15 18:56:09,249 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-15 18:56:09,250 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-15 18:56:09,251 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-15 18:56:09,252 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-15 18:56:09,253 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-15 18:56:09,253 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-15 18:56:09,254 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-15 18:56:09,254 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-15 18:56:09,255 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-15 18:56:09,255 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-15 18:56:09,256 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-15 18:56:09,256 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-15 18:56:09,257 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-15 18:56:09,257 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-15 18:56:09,258 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-15 18:56:09,259 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-15 18:56:09,260 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-15 18:56:09,261 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-15 18:56:09,261 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-15 18:56:09,262 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-15 18:56:09,263 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-15 18:56:09,263 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-15 18:56:09,264 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-15 18:56:09,264 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-15 18:56:09,264 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-15 18:56:09,265 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-15 18:56:09,265 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-15 18:56:09,266 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-15 18:56:09,266 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-15 18:56:09,266 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-15 18:56:09,267 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-15 18:56:09,267 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-15 18:56:09,268 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-15 18:56:09,268 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-15 18:56:09,268 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 18:56:09,268 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 18:56:09,269 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 18:56:09,270 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2022-03-15 18:56:09,282 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 18:56:09,282 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 18:56:09,283 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 18:56:09,283 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 18:56:09,283 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 18:56:09,283 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 18:56:09,283 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 18:56:09,284 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 18:56:09,284 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 18:56:09,284 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 18:56:09,284 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 18:56:09,284 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 18:56:09,284 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 18:56:09,284 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 18:56:09,284 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 18:56:09,285 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 18:56:09,285 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 18:56:09,285 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 18:56:09,285 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 18:56:09,285 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 18:56:09,285 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 18:56:09,285 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 18:56:09,285 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 18:56:09,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 18:56:09,286 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 18:56:09,286 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-15 18:56:09,286 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 18:56:09,286 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 18:56:09,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 18:56:09,286 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2022-03-15 18:56:09,286 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2022-03-15 18:56:09,287 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 18:56:09,287 INFO L138 SettingsManager]: * Interpolant automaton=MCR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 18:56:09,452 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 18:56:09,471 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 18:56:09,473 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 18:56:09,474 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 18:56:09,475 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 18:56:09,475 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-parallel-sum-1.wvr.c [2022-03-15 18:56:09,526 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f0265b78/1383905e9a0e42319f2e2889378f420e/FLAGfc1c655c8 [2022-03-15 18:56:09,897 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 18:56:09,898 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-1.wvr.c [2022-03-15 18:56:09,907 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f0265b78/1383905e9a0e42319f2e2889378f420e/FLAGfc1c655c8 [2022-03-15 18:56:09,919 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f0265b78/1383905e9a0e42319f2e2889378f420e [2022-03-15 18:56:09,921 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 18:56:09,922 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 18:56:09,925 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 18:56:09,925 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 18:56:09,927 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 18:56:09,928 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 06:56:09" (1/1) ... [2022-03-15 18:56:09,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e6fbb81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:56:09, skipping insertion in model container [2022-03-15 18:56:09,929 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 06:56:09" (1/1) ... [2022-03-15 18:56:09,934 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 18:56:09,955 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 18:56:10,149 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-1.wvr.c[3642,3655] [2022-03-15 18:56:10,162 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 18:56:10,168 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 18:56:10,200 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-1.wvr.c[3642,3655] [2022-03-15 18:56:10,203 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 18:56:10,211 INFO L208 MainTranslator]: Completed translation [2022-03-15 18:56:10,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:56:10 WrapperNode [2022-03-15 18:56:10,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 18:56:10,213 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 18:56:10,213 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 18:56:10,213 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 18:56:10,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:56:10" (1/1) ... [2022-03-15 18:56:10,233 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:56:10" (1/1) ... [2022-03-15 18:56:10,254 INFO L137 Inliner]: procedures = 27, calls = 68, calls flagged for inlining = 18, calls inlined = 24, statements flattened = 297 [2022-03-15 18:56:10,255 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 18:56:10,255 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 18:56:10,255 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 18:56:10,255 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 18:56:10,261 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:56:10" (1/1) ... [2022-03-15 18:56:10,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:56:10" (1/1) ... [2022-03-15 18:56:10,264 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:56:10" (1/1) ... [2022-03-15 18:56:10,264 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:56:10" (1/1) ... [2022-03-15 18:56:10,269 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:56:10" (1/1) ... [2022-03-15 18:56:10,276 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:56:10" (1/1) ... [2022-03-15 18:56:10,278 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:56:10" (1/1) ... [2022-03-15 18:56:10,281 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 18:56:10,282 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 18:56:10,282 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 18:56:10,282 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 18:56:10,285 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:56:10" (1/1) ... [2022-03-15 18:56:10,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 18:56:10,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 18:56:10,308 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) [2022-03-15 18:56:10,323 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 [2022-03-15 18:56:10,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-15 18:56:10,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 18:56:10,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 18:56:10,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-15 18:56:10,349 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-15 18:56:10,349 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-15 18:56:10,349 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-15 18:56:10,349 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-15 18:56:10,349 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-15 18:56:10,350 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-15 18:56:10,350 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-15 18:56:10,350 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-15 18:56:10,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-15 18:56:10,350 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-15 18:56:10,350 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-15 18:56:10,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-15 18:56:10,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 18:56:10,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 18:56:10,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 18:56:10,352 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 18:56:10,462 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 18:56:10,463 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 18:56:10,837 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 18:56:10,967 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 18:56:10,967 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-03-15 18:56:10,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 06:56:10 BoogieIcfgContainer [2022-03-15 18:56:10,969 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 18:56:10,971 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 18:56:10,972 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 18:56:10,974 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 18:56:10,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 06:56:09" (1/3) ... [2022-03-15 18:56:10,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41d4135d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 06:56:10, skipping insertion in model container [2022-03-15 18:56:10,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:56:10" (2/3) ... [2022-03-15 18:56:10,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41d4135d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 06:56:10, skipping insertion in model container [2022-03-15 18:56:10,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 06:56:10" (3/3) ... [2022-03-15 18:56:10,976 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-1.wvr.c [2022-03-15 18:56:10,980 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 18:56:10,980 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-15 18:56:10,980 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 18:56:10,980 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 18:56:11,019 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,020 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,020 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,020 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,020 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,021 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,021 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,021 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,022 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,022 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,022 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,022 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,022 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,022 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,022 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,022 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,022 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,022 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,022 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,023 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,023 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,023 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,023 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,023 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,023 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,023 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,023 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,024 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,024 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,024 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,024 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,024 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,024 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,024 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,024 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,024 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,025 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,025 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,025 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,025 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,025 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,026 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,026 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,026 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,026 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,026 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,026 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,026 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,026 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,027 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,027 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,027 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,027 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,027 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,027 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,028 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,028 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,028 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,028 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,028 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,028 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,028 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,029 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,029 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,029 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,029 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,029 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,029 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,029 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,029 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,030 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,030 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,030 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,030 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,030 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,030 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,031 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,031 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,031 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,031 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,031 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,032 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,032 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,032 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,032 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,032 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,032 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,032 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,033 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,033 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,033 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,033 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,033 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,034 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,034 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,034 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,034 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,034 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,034 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,034 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,034 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,034 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,034 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,035 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,035 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,035 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,035 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,035 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,038 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,038 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,042 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,042 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,042 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,042 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,043 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,043 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,043 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,043 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,043 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,043 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,043 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,043 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,043 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,043 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,044 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,044 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,044 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,044 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,044 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,044 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,044 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,044 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~ret16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,044 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,044 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,044 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,044 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,045 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,045 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,045 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,045 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~ret16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,045 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,045 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,045 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,045 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,048 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,048 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,048 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,048 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,048 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,048 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,048 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,048 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,048 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,049 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,049 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,049 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,049 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,049 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,049 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,049 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,050 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,050 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,050 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,050 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,050 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~ret16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,050 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,050 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,050 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,050 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,050 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,051 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,051 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,051 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,053 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,053 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,053 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,053 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,053 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,053 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,053 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,053 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,053 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,054 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,054 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,054 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,054 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,054 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,054 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,054 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,054 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,055 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,055 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,055 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,055 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,055 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,055 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:56:11,058 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-03-15 18:56:11,088 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 18:56:11,096 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=MCR, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, 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=true, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 18:56:11,096 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-15 18:56:11,109 INFO L126 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-03-15 18:56:11,114 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 204 places, 206 transitions, 444 flow [2022-03-15 18:56:11,116 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 204 places, 206 transitions, 444 flow [2022-03-15 18:56:11,118 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 204 places, 206 transitions, 444 flow [2022-03-15 18:56:11,193 INFO L129 PetriNetUnfolder]: 15/202 cut-off events. [2022-03-15 18:56:11,193 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-03-15 18:56:11,198 INFO L84 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 202 events. 15/202 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 117 event pairs, 0 based on Foata normal form. 0/186 useless extension candidates. Maximal degree in co-relation 162. Up to 2 conditions per place. [2022-03-15 18:56:11,201 INFO L116 LiptonReduction]: Number of co-enabled transitions 2160 [2022-03-15 18:56:17,227 INFO L131 LiptonReduction]: Checked pairs total: 4030 [2022-03-15 18:56:17,227 INFO L133 LiptonReduction]: Total number of compositions: 201 [2022-03-15 18:56:17,232 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44 places, 36 transitions, 104 flow [2022-03-15 18:56:17,272 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 323 states, 322 states have (on average 4.03416149068323) internal successors, (1299), 322 states have internal predecessors, (1299), 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) [2022-03-15 18:56:17,274 INFO L276 IsEmpty]: Start isEmpty. Operand has 323 states, 322 states have (on average 4.03416149068323) internal successors, (1299), 322 states have internal predecessors, (1299), 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) [2022-03-15 18:56:17,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-03-15 18:56:17,284 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:56:17,285 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] [2022-03-15 18:56:17,285 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 18:56:17,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:56:17,288 INFO L85 PathProgramCache]: Analyzing trace with hash 470505752, now seen corresponding path program 1 times [2022-03-15 18:56:17,299 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:56:17,299 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687015730] [2022-03-15 18:56:17,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:56:17,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:56:17,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:56:17,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:56:17,488 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:56:17,488 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687015730] [2022-03-15 18:56:17,488 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687015730] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 18:56:17,489 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 18:56:17,489 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 18:56:17,489 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1550686994] [2022-03-15 18:56:17,490 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:56:17,494 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:56:17,516 INFO L252 McrAutomatonBuilder]: Finished intersection with 93 states and 209 transitions. [2022-03-15 18:56:17,516 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:56:18,508 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 18:56:18,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 18:56:18,510 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:56:18,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 18:56:18,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 18:56:18,529 INFO L87 Difference]: Start difference. First operand has 323 states, 322 states have (on average 4.03416149068323) internal successors, (1299), 322 states have internal predecessors, (1299), 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 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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) [2022-03-15 18:56:18,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:56:18,602 INFO L93 Difference]: Finished difference Result 642 states and 2593 transitions. [2022-03-15 18:56:18,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 18:56:18,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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 22 [2022-03-15 18:56:18,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:56:18,614 INFO L225 Difference]: With dead ends: 642 [2022-03-15 18:56:18,615 INFO L226 Difference]: Without dead ends: 633 [2022-03-15 18:56:18,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 1 SyntacticMatches, 70 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 18:56:18,617 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 4 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 18:56:18,618 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 0 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 18:56:18,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2022-03-15 18:56:18,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 403. [2022-03-15 18:56:18,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 402 states have (on average 4.0) internal successors, (1608), 402 states have internal predecessors, (1608), 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) [2022-03-15 18:56:18,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 1608 transitions. [2022-03-15 18:56:18,660 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 1608 transitions. Word has length 22 [2022-03-15 18:56:18,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:56:18,661 INFO L470 AbstractCegarLoop]: Abstraction has 403 states and 1608 transitions. [2022-03-15 18:56:18,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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) [2022-03-15 18:56:18,661 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 1608 transitions. [2022-03-15 18:56:18,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-03-15 18:56:18,663 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:56:18,664 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] [2022-03-15 18:56:18,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 18:56:18,664 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 18:56:18,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:56:18,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1752180615, now seen corresponding path program 1 times [2022-03-15 18:56:18,667 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:56:18,670 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041525321] [2022-03-15 18:56:18,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:56:18,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:56:18,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:56:18,806 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:56:18,806 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:56:18,806 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041525321] [2022-03-15 18:56:18,807 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041525321] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 18:56:18,807 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 18:56:18,807 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 18:56:18,807 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1290561769] [2022-03-15 18:56:18,808 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:56:18,811 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:56:18,834 INFO L252 McrAutomatonBuilder]: Finished intersection with 124 states and 296 transitions. [2022-03-15 18:56:18,834 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:56:19,943 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 18:56:19,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 18:56:19,944 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:56:19,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 18:56:19,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-15 18:56:19,945 INFO L87 Difference]: Start difference. First operand 403 states and 1608 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 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) [2022-03-15 18:56:20,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:56:20,034 INFO L93 Difference]: Finished difference Result 642 states and 2371 transitions. [2022-03-15 18:56:20,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-15 18:56:20,035 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 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 24 [2022-03-15 18:56:20,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:56:20,037 INFO L225 Difference]: With dead ends: 642 [2022-03-15 18:56:20,037 INFO L226 Difference]: Without dead ends: 404 [2022-03-15 18:56:20,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-03-15 18:56:20,038 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 46 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 18:56:20,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 0 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 18:56:20,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2022-03-15 18:56:20,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 404. [2022-03-15 18:56:20,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 403 states have (on average 3.9925558312655087) internal successors, (1609), 403 states have internal predecessors, (1609), 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) [2022-03-15 18:56:20,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 1609 transitions. [2022-03-15 18:56:20,051 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 1609 transitions. Word has length 24 [2022-03-15 18:56:20,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:56:20,051 INFO L470 AbstractCegarLoop]: Abstraction has 404 states and 1609 transitions. [2022-03-15 18:56:20,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 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) [2022-03-15 18:56:20,051 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 1609 transitions. [2022-03-15 18:56:20,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-15 18:56:20,052 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:56:20,053 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] [2022-03-15 18:56:20,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 18:56:20,053 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 18:56:20,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:56:20,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1448276884, now seen corresponding path program 1 times [2022-03-15 18:56:20,054 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:56:20,054 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889245038] [2022-03-15 18:56:20,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:56:20,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:56:20,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:56:20,159 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:56:20,160 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:56:20,160 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889245038] [2022-03-15 18:56:20,160 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889245038] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 18:56:20,160 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [309948635] [2022-03-15 18:56:20,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:56:20,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:56:20,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 18:56:20,163 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) [2022-03-15 18:56:20,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-15 18:56:20,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:56:20,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 11 conjunts are in the unsatisfiable core [2022-03-15 18:56:20,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 18:56:20,468 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 18:56:20,468 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 18:56:20,524 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 18:56:20,525 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [309948635] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 18:56:20,525 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 18:56:20,525 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 9 [2022-03-15 18:56:20,525 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1346340978] [2022-03-15 18:56:20,525 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:56:20,545 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:56:20,570 INFO L252 McrAutomatonBuilder]: Finished intersection with 125 states and 297 transitions. [2022-03-15 18:56:20,574 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:56:21,612 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 18:56:21,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 18:56:21,613 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:56:21,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 18:56:21,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-03-15 18:56:21,614 INFO L87 Difference]: Start difference. First operand 404 states and 1609 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) [2022-03-15 18:56:21,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:56:21,679 INFO L93 Difference]: Finished difference Result 643 states and 2373 transitions. [2022-03-15 18:56:21,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 18:56:21,679 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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 25 [2022-03-15 18:56:21,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:56:21,683 INFO L225 Difference]: With dead ends: 643 [2022-03-15 18:56:21,683 INFO L226 Difference]: Without dead ends: 635 [2022-03-15 18:56:21,683 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-03-15 18:56:21,685 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 72 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 18:56:21,686 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 0 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 18:56:21,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2022-03-15 18:56:21,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 542. [2022-03-15 18:56:21,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 541 states have (on average 3.88909426987061) internal successors, (2104), 541 states have internal predecessors, (2104), 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) [2022-03-15 18:56:21,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 2104 transitions. [2022-03-15 18:56:21,700 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 2104 transitions. Word has length 25 [2022-03-15 18:56:21,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:56:21,700 INFO L470 AbstractCegarLoop]: Abstraction has 542 states and 2104 transitions. [2022-03-15 18:56:21,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) [2022-03-15 18:56:21,700 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 2104 transitions. [2022-03-15 18:56:21,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-15 18:56:21,702 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:56:21,702 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] [2022-03-15 18:56:21,733 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-03-15 18:56:21,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:56:21,934 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 18:56:21,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:56:21,934 INFO L85 PathProgramCache]: Analyzing trace with hash -61890014, now seen corresponding path program 1 times [2022-03-15 18:56:21,936 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:56:21,936 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925685480] [2022-03-15 18:56:21,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:56:21,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:56:21,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:56:22,011 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:56:22,011 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:56:22,011 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925685480] [2022-03-15 18:56:22,011 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925685480] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 18:56:22,011 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775784331] [2022-03-15 18:56:22,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:56:22,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:56:22,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 18:56:22,016 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) [2022-03-15 18:56:22,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-15 18:56:22,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:56:22,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 11 conjunts are in the unsatisfiable core [2022-03-15 18:56:22,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 18:56:22,243 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 18:56:22,243 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 18:56:22,304 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 18:56:22,304 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1775784331] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 18:56:22,304 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 18:56:22,304 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 9 [2022-03-15 18:56:22,305 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [888253980] [2022-03-15 18:56:22,305 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:56:22,308 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:56:22,330 INFO L252 McrAutomatonBuilder]: Finished intersection with 134 states and 324 transitions. [2022-03-15 18:56:22,330 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:56:23,458 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 18:56:23,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 18:56:23,459 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:56:23,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 18:56:23,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-03-15 18:56:23,460 INFO L87 Difference]: Start difference. First operand 542 states and 2104 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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) [2022-03-15 18:56:23,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:56:23,545 INFO L93 Difference]: Finished difference Result 478 states and 1764 transitions. [2022-03-15 18:56:23,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 18:56:23,545 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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 25 [2022-03-15 18:56:23,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:56:23,548 INFO L225 Difference]: With dead ends: 478 [2022-03-15 18:56:23,548 INFO L226 Difference]: Without dead ends: 405 [2022-03-15 18:56:23,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-03-15 18:56:23,550 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 30 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 18:56:23,551 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 0 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 18:56:23,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2022-03-15 18:56:23,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2022-03-15 18:56:23,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 404 states have (on average 3.985148514851485) internal successors, (1610), 404 states have internal predecessors, (1610), 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) [2022-03-15 18:56:23,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 1610 transitions. [2022-03-15 18:56:23,561 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 1610 transitions. Word has length 25 [2022-03-15 18:56:23,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:56:23,561 INFO L470 AbstractCegarLoop]: Abstraction has 405 states and 1610 transitions. [2022-03-15 18:56:23,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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) [2022-03-15 18:56:23,562 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 1610 transitions. [2022-03-15 18:56:23,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 18:56:23,563 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:56:23,563 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 18:56:23,580 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-15 18:56:23,780 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,SelfDestructingSolverStorable3 [2022-03-15 18:56:23,780 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 18:56:23,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:56:23,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1878211545, now seen corresponding path program 2 times [2022-03-15 18:56:23,781 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:56:23,781 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748950744] [2022-03-15 18:56:23,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:56:23,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:56:23,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:56:23,825 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 18:56:23,825 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:56:23,826 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748950744] [2022-03-15 18:56:23,826 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748950744] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 18:56:23,826 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 18:56:23,826 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 18:56:23,826 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1302566675] [2022-03-15 18:56:23,826 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:56:23,846 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:56:23,869 INFO L252 McrAutomatonBuilder]: Finished intersection with 126 states and 298 transitions. [2022-03-15 18:56:23,869 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:56:24,851 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 18:56:24,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-15 18:56:24,852 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:56:24,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-15 18:56:24,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-15 18:56:24,852 INFO L87 Difference]: Start difference. First operand 405 states and 1610 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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) [2022-03-15 18:56:24,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:56:24,943 INFO L93 Difference]: Finished difference Result 995 states and 4067 transitions. [2022-03-15 18:56:24,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-15 18:56:24,944 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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 [2022-03-15 18:56:24,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:56:24,949 INFO L225 Difference]: With dead ends: 995 [2022-03-15 18:56:24,949 INFO L226 Difference]: Without dead ends: 958 [2022-03-15 18:56:24,949 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-15 18:56:24,951 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 28 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 18:56:24,951 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 0 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 18:56:24,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 958 states. [2022-03-15 18:56:24,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 958 to 865. [2022-03-15 18:56:24,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 864 states have (on average 4.233796296296297) internal successors, (3658), 864 states have internal predecessors, (3658), 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) [2022-03-15 18:56:24,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 3658 transitions. [2022-03-15 18:56:24,970 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 3658 transitions. Word has length 26 [2022-03-15 18:56:24,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:56:24,970 INFO L470 AbstractCegarLoop]: Abstraction has 865 states and 3658 transitions. [2022-03-15 18:56:24,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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) [2022-03-15 18:56:24,970 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 3658 transitions. [2022-03-15 18:56:24,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 18:56:24,972 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:56:24,972 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 18:56:24,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-15 18:56:24,973 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 18:56:24,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:56:24,973 INFO L85 PathProgramCache]: Analyzing trace with hash 368044647, now seen corresponding path program 2 times [2022-03-15 18:56:24,974 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:56:24,974 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099480572] [2022-03-15 18:56:24,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:56:24,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:56:25,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:56:25,030 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 18:56:25,030 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:56:25,030 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099480572] [2022-03-15 18:56:25,030 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099480572] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 18:56:25,030 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1708229728] [2022-03-15 18:56:25,030 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-15 18:56:25,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:56:25,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 18:56:25,032 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) [2022-03-15 18:56:25,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-15 18:56:25,129 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-15 18:56:25,129 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 18:56:25,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 15 conjunts are in the unsatisfiable core [2022-03-15 18:56:25,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 18:56:25,289 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 18:56:25,289 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 18:56:25,367 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 18:56:25,367 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1708229728] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-15 18:56:25,368 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-15 18:56:25,368 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 11 [2022-03-15 18:56:25,368 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1203566836] [2022-03-15 18:56:25,368 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:56:25,371 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:56:25,420 INFO L252 McrAutomatonBuilder]: Finished intersection with 135 states and 325 transitions. [2022-03-15 18:56:25,420 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:56:26,695 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 18:56:26,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 18:56:26,696 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:56:26,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 18:56:26,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2022-03-15 18:56:26,696 INFO L87 Difference]: Start difference. First operand 865 states and 3658 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 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) [2022-03-15 18:56:26,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:56:26,770 INFO L93 Difference]: Finished difference Result 1048 states and 4354 transitions. [2022-03-15 18:56:26,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 18:56:26,771 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 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 [2022-03-15 18:56:26,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:56:26,782 INFO L225 Difference]: With dead ends: 1048 [2022-03-15 18:56:26,782 INFO L226 Difference]: Without dead ends: 955 [2022-03-15 18:56:26,783 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 150 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-03-15 18:56:26,783 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 53 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 18:56:26,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 0 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 18:56:26,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2022-03-15 18:56:26,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 955. [2022-03-15 18:56:26,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 955 states, 954 states have (on average 4.2085953878406706) internal successors, (4015), 954 states have internal predecessors, (4015), 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) [2022-03-15 18:56:26,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 955 states to 955 states and 4015 transitions. [2022-03-15 18:56:26,809 INFO L78 Accepts]: Start accepts. Automaton has 955 states and 4015 transitions. Word has length 26 [2022-03-15 18:56:26,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:56:26,809 INFO L470 AbstractCegarLoop]: Abstraction has 955 states and 4015 transitions. [2022-03-15 18:56:26,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 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) [2022-03-15 18:56:26,810 INFO L276 IsEmpty]: Start isEmpty. Operand 955 states and 4015 transitions. [2022-03-15 18:56:26,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-03-15 18:56:26,812 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:56:26,812 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 18:56:26,832 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-15 18:56:27,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:56:27,028 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 18:56:27,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:56:27,028 INFO L85 PathProgramCache]: Analyzing trace with hash 923188616, now seen corresponding path program 1 times [2022-03-15 18:56:27,029 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:56:27,029 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338528684] [2022-03-15 18:56:27,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:56:27,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:56:27,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:56:27,353 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:56:27,354 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:56:27,354 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338528684] [2022-03-15 18:56:27,354 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338528684] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 18:56:27,354 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [63408547] [2022-03-15 18:56:27,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:56:27,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:56:27,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 18:56:27,355 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 18:56:27,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-15 18:56:27,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:56:27,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 55 conjunts are in the unsatisfiable core [2022-03-15 18:56:27,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 18:56:27,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 18:56:27,612 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2022-03-15 18:56:27,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 18:56:27,660 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2022-03-15 18:56:27,692 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 18:56:27,693 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 [2022-03-15 18:56:27,827 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 18:56:27,827 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 18:56:28,054 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 124 treesize of output 79 [2022-03-15 18:56:28,072 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 79 treesize of output 65 [2022-03-15 18:56:28,075 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 35 treesize of output 28 [2022-03-15 18:56:28,159 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 18:56:28,159 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [63408547] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 18:56:28,159 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 18:56:28,159 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 8] total 26 [2022-03-15 18:56:28,159 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [635948757] [2022-03-15 18:56:28,159 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:56:28,162 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:56:28,195 INFO L252 McrAutomatonBuilder]: Finished intersection with 180 states and 459 transitions. [2022-03-15 18:56:28,195 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:56:32,943 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 8 new interpolants: [13130#(and (or (< (+ ~t11~0 ~s1~0 2147483648) 0) (< ~s2~0 (+ ~t11~0 ~s1~0 1)) (< 2147483647 (+ ~t11~0 ~s1~0))) (or (< (+ ~t11~0 ~s1~0 2147483648) 0) (<= (+ ~t11~0 ~s1~0) ~s2~0) (< 2147483647 (+ ~t11~0 ~s1~0)))), 13131#(and (or (<= (+ ~t11~0 ~s1~0) (+ ~t12~0 ~s2~0)) (< (+ ~t12~0 ~s2~0 2147483648) 0) (< 2147483647 (+ ~t11~0 ~s1~0))) (or (< (+ ~t11~0 ~s1~0 2147483648) 0) (< 2147483647 (+ ~t12~0 ~s2~0)) (< (+ ~t12~0 ~s2~0) (+ ~t11~0 ~s1~0 1)))), 13129#(and (or (<= ~s1~0 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))) (<= ~n~0 ~i2~0)) (or (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))) (<= ~n~0 ~i2~0) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))) (+ ~s1~0 1)))), 13128#(and (or (<= ~s1~0 (+ ~t12~0 ~s2~0)) (< 2147483647 (+ ~t12~0 ~s2~0)) (< (+ ~t12~0 ~s2~0 2147483648) 0)) (or (< (+ ~t12~0 ~s2~0) (+ ~s1~0 1)) (< 2147483647 (+ ~t12~0 ~s2~0)) (< (+ ~t12~0 ~s2~0 2147483648) 0))), 13134#(and (or (< (* ~n~0 4) (+ (* ~i2~0 4) 4)) (< (+ ~t11~0 ~s1~0 2147483648) 0) (<= (+ (select (select |#memory_int| ~x~0.base) (+ (* ~i2~0 4) 4)) ~s2~0) (+ ~t11~0 ~s1~0)) (< 2147483647 (+ ~t11~0 ~s1~0))) (or (< (* ~n~0 4) (+ (* ~i2~0 4) 4)) (< (+ ~t11~0 ~s1~0 2147483648) 0) (<= (+ ~t11~0 ~s1~0) (+ (select (select |#memory_int| ~x~0.base) (+ (* ~i2~0 4) 4)) ~s2~0)) (< 2147483647 (+ ~t11~0 ~s1~0))) (or (< (+ ~t11~0 ~s1~0 2147483648) 0) (<= (* ~n~0 4) (+ (* ~i2~0 4) 4)) (< 2147483647 (+ ~t11~0 ~s1~0))) (or (= ~x~0.offset 0) (< (+ ~t11~0 ~s1~0 2147483648) 0) (< 2147483647 (+ ~t11~0 ~s1~0)))), 13132#(and (or (<= (+ ~t11~0 ~s1~0) (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (<= ~n~0 ~i2~0) (< 2147483647 (+ ~t11~0 ~s1~0))) (or (< (+ ~t11~0 ~s1~0 2147483648) 0) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))) (+ ~t11~0 ~s1~0 1)) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))) (<= ~n~0 ~i2~0))), 13133#(and (or (<= (+ ~t11~0 ~s1~0) (+ ~t12~0 ~s2~0)) (< (+ ~t11~0 ~s1~0 2147483648) 0) (< 2147483647 (+ ~t11~0 ~s1~0))) (or (< (+ ~t11~0 ~s1~0 2147483648) 0) (<= (+ ~t12~0 ~s2~0) (+ ~t11~0 ~s1~0)) (< 2147483647 (+ ~t11~0 ~s1~0)))), 13135#(and (or (< (* ~n~0 4) (+ (* ~i2~0 4) 4)) (< (+ ~t11~0 ~s1~0 2147483648) 0) (not (= ~x~0.base |ULTIMATE.start_main_~#t3~0#1.base|)) (< 2147483647 (+ ~t11~0 ~s1~0))) (or (< (* ~n~0 4) (+ (* ~i2~0 4) 4)) (< (+ ~t11~0 ~s1~0 2147483648) 0) (not (= ~x~0.base |ULTIMATE.start_main_~#t2~0#1.base|)) (< 2147483647 (+ ~t11~0 ~s1~0))) (or (< (* ~n~0 4) (+ (* ~i2~0 4) 4)) (< (+ ~t11~0 ~s1~0 2147483648) 0) (<= (+ (select (select |#memory_int| ~x~0.base) (+ (* ~i2~0 4) 4)) ~s2~0) (+ ~t11~0 ~s1~0)) (< 2147483647 (+ ~t11~0 ~s1~0))) (or (< (* ~n~0 4) (+ (* ~i2~0 4) 4)) (< (+ ~t11~0 ~s1~0 2147483648) 0) (<= (+ ~t11~0 ~s1~0) (+ (select (select |#memory_int| ~x~0.base) (+ (* ~i2~0 4) 4)) ~s2~0)) (< 2147483647 (+ ~t11~0 ~s1~0))) (or (< (+ ~t11~0 ~s1~0 2147483648) 0) (<= (* ~n~0 4) (+ (* ~i2~0 4) 4)) (< 2147483647 (+ ~t11~0 ~s1~0))) (or (= ~x~0.offset 0) (< (+ ~t11~0 ~s1~0 2147483648) 0) (< 2147483647 (+ ~t11~0 ~s1~0))))] [2022-03-15 18:56:32,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 18:56:32,943 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:56:32,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 18:56:32,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1147, Unknown=5, NotChecked=0, Total=1260 [2022-03-15 18:56:32,944 INFO L87 Difference]: Start difference. First operand 955 states and 4015 transitions. Second operand has 19 states, 18 states have (on average 4.166666666666667) internal successors, (75), 18 states have internal predecessors, (75), 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) [2022-03-15 18:56:36,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:56:36,384 INFO L93 Difference]: Finished difference Result 4736 states and 19917 transitions. [2022-03-15 18:56:36,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-15 18:56:36,384 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 4.166666666666667) internal successors, (75), 18 states have internal predecessors, (75), 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 [2022-03-15 18:56:36,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:56:36,409 INFO L225 Difference]: With dead ends: 4736 [2022-03-15 18:56:36,409 INFO L226 Difference]: Without dead ends: 4676 [2022-03-15 18:56:36,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 868 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=642, Invalid=4045, Unknown=5, NotChecked=0, Total=4692 [2022-03-15 18:56:36,410 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 230 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 2025 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 2154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 2025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-15 18:56:36,411 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 0 Invalid, 2154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 2025 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-15 18:56:36,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4676 states. [2022-03-15 18:56:36,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4676 to 1231. [2022-03-15 18:56:36,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1231 states, 1230 states have (on average 4.304878048780488) internal successors, (5295), 1230 states have internal predecessors, (5295), 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) [2022-03-15 18:56:36,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1231 states to 1231 states and 5295 transitions. [2022-03-15 18:56:36,466 INFO L78 Accepts]: Start accepts. Automaton has 1231 states and 5295 transitions. Word has length 28 [2022-03-15 18:56:36,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:56:36,466 INFO L470 AbstractCegarLoop]: Abstraction has 1231 states and 5295 transitions. [2022-03-15 18:56:36,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 4.166666666666667) internal successors, (75), 18 states have internal predecessors, (75), 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) [2022-03-15 18:56:36,466 INFO L276 IsEmpty]: Start isEmpty. Operand 1231 states and 5295 transitions. [2022-03-15 18:56:36,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-03-15 18:56:36,469 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:56:36,469 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 18:56:36,488 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-15 18:56:36,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:56:36,683 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 18:56:36,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:56:36,684 INFO L85 PathProgramCache]: Analyzing trace with hash 669046218, now seen corresponding path program 2 times [2022-03-15 18:56:36,684 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:56:36,685 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302559149] [2022-03-15 18:56:36,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:56:36,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:56:36,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:56:36,934 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 18:56:36,934 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:56:36,934 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302559149] [2022-03-15 18:56:36,934 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302559149] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 18:56:36,934 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [387883809] [2022-03-15 18:56:36,935 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-15 18:56:36,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:56:36,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 18:56:36,936 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 18:56:36,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-15 18:56:37,030 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-15 18:56:37,030 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 18:56:37,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 61 conjunts are in the unsatisfiable core [2022-03-15 18:56:37,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 18:56:37,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 18:56:37,207 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-15 18:56:37,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 18:56:37,259 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-15 18:56:37,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 18:56:37,296 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-15 18:56:37,340 INFO L353 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-03-15 18:56:37,340 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 23 treesize of output 10 [2022-03-15 18:56:37,433 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 18:56:37,433 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 18:56:37,638 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 256 treesize of output 175 [2022-03-15 18:56:37,640 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 175 treesize of output 161 [2022-03-15 18:56:37,644 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 83 treesize of output 76 [2022-03-15 18:56:37,646 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 154 treesize of output 126 [2022-03-15 18:56:37,798 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 18:56:37,798 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [387883809] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 18:56:37,798 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 18:56:37,798 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10, 9] total 25 [2022-03-15 18:56:37,798 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1876435940] [2022-03-15 18:56:37,798 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:56:37,801 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:56:37,847 INFO L252 McrAutomatonBuilder]: Finished intersection with 204 states and 537 transitions. [2022-03-15 18:56:37,847 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:56:44,050 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 8 new interpolants: [20592#(and (or (<= (+ ~t11~0 ~s1~0) (+ ~t12~0 ~s2~0)) (< (+ ~t12~0 ~s2~0 2147483648) 0) (< 2147483647 (+ ~t11~0 ~s1~0))) (or (< (+ ~t11~0 ~s1~0 2147483648) 0) (< 2147483647 (+ ~t12~0 ~s2~0)) (< (+ ~t12~0 ~s2~0) (+ ~t11~0 ~s1~0 1)))), 20591#(and (or (<= ~s1~0 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))))) (or (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))) (+ ~s1~0 1)))), 20590#(and (or (<= ~s1~0 (+ ~t12~0 ~s2~0)) (< 2147483647 (+ ~t12~0 ~s2~0)) (< (+ ~t12~0 ~s2~0 2147483648) 0)) (or (< (+ ~t12~0 ~s2~0) (+ ~s1~0 1)) (< 2147483647 (+ ~t12~0 ~s2~0)) (< (+ ~t12~0 ~s2~0 2147483648) 0))), 20593#(and (or (< (+ ~t11~0 ~s1~0 2147483648) 0) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))) (+ ~t11~0 ~s1~0 1)) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))))) (or (<= (+ ~t11~0 ~s1~0) (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (< 2147483647 (+ ~t11~0 ~s1~0)))), 20595#(and (or (< (+ ~t11~0 ~s1~0 2147483648) 0) (<= (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4))) ~s2~0) (+ ~t11~0 ~s1~0)) (< 2147483647 (+ ~t11~0 ~s1~0))) (or (< (+ ~t11~0 ~s1~0 2147483648) 0) (<= (+ ~i2~0 1) ~i1~0) (< 2147483647 (+ ~t11~0 ~s1~0))) (or (< (+ ~t11~0 ~s1~0 2147483648) 0) (<= ~i1~0 (+ ~i2~0 1)) (< 2147483647 (+ ~t11~0 ~s1~0))) (or (< (+ ~t11~0 ~s1~0 2147483648) 0) (<= (+ ~t11~0 ~s1~0) (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4))) ~s2~0)) (< 2147483647 (+ ~t11~0 ~s1~0)))), 20596#(and (or (< (+ ~t11~0 ~s1~0 2147483648) 0) (not (= ~x~0.base |ULTIMATE.start_main_~#t2~0#1.base|)) (< 2147483647 (+ ~t11~0 ~s1~0))) (or (< (+ ~t11~0 ~s1~0 2147483648) 0) (<= (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4))) ~s2~0) (+ ~t11~0 ~s1~0)) (< 2147483647 (+ ~t11~0 ~s1~0))) (or (not (= ~x~0.base |ULTIMATE.start_main_~#t4~0#1.base|)) (< (+ ~t11~0 ~s1~0 2147483648) 0) (< 2147483647 (+ ~t11~0 ~s1~0))) (or (< (+ ~t11~0 ~s1~0 2147483648) 0) (<= (+ ~i2~0 1) ~i1~0) (< 2147483647 (+ ~t11~0 ~s1~0))) (or (< (+ ~t11~0 ~s1~0 2147483648) 0) (<= ~i1~0 (+ ~i2~0 1)) (< 2147483647 (+ ~t11~0 ~s1~0))) (or (< (+ ~t11~0 ~s1~0 2147483648) 0) (not (= ~x~0.base |ULTIMATE.start_main_~#t3~0#1.base|)) (< 2147483647 (+ ~t11~0 ~s1~0))) (or (< (+ ~t11~0 ~s1~0 2147483648) 0) (<= (+ ~t11~0 ~s1~0) (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4))) ~s2~0)) (< 2147483647 (+ ~t11~0 ~s1~0)))), 20594#(and (or (<= (+ ~t11~0 ~s1~0) (+ ~t12~0 ~s2~0)) (< (+ ~t11~0 ~s1~0 2147483648) 0) (< 2147483647 (+ ~t11~0 ~s1~0))) (or (< (+ ~t11~0 ~s1~0 2147483648) 0) (<= (+ ~t12~0 ~s2~0) (+ ~t11~0 ~s1~0)) (< 2147483647 (+ ~t11~0 ~s1~0)))), 20589#(and (or (< (+ ~t11~0 ~s1~0 2147483648) 0) (< ~s2~0 (+ ~t11~0 ~s1~0 1)) (< 2147483647 (+ ~t11~0 ~s1~0))) (or (< (+ ~t11~0 ~s1~0 2147483648) 0) (<= (+ ~t11~0 ~s1~0) ~s2~0) (< 2147483647 (+ ~t11~0 ~s1~0))))] [2022-03-15 18:56:44,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 18:56:44,050 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:56:44,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 18:56:44,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=1003, Unknown=9, NotChecked=0, Total=1190 [2022-03-15 18:56:44,051 INFO L87 Difference]: Start difference. First operand 1231 states and 5295 transitions. Second operand has 17 states, 16 states have (on average 5.0625) internal successors, (81), 15 states have internal predecessors, (81), 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) [2022-03-15 18:56:44,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:56:44,866 INFO L93 Difference]: Finished difference Result 2363 states and 10013 transitions. [2022-03-15 18:56:44,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-15 18:56:44,866 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 5.0625) internal successors, (81), 15 states have internal predecessors, (81), 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 [2022-03-15 18:56:44,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:56:44,878 INFO L225 Difference]: With dead ends: 2363 [2022-03-15 18:56:44,878 INFO L226 Difference]: Without dead ends: 2342 [2022-03-15 18:56:44,879 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 635 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=284, Invalid=1869, Unknown=9, NotChecked=0, Total=2162 [2022-03-15 18:56:44,879 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 200 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 914 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-15 18:56:44,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 0 Invalid, 975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 914 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-15 18:56:44,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2342 states. [2022-03-15 18:56:44,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2342 to 1285. [2022-03-15 18:56:44,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1285 states, 1284 states have (on average 4.315420560747664) internal successors, (5541), 1284 states have internal predecessors, (5541), 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) [2022-03-15 18:56:44,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1285 states to 1285 states and 5541 transitions. [2022-03-15 18:56:44,914 INFO L78 Accepts]: Start accepts. Automaton has 1285 states and 5541 transitions. Word has length 28 [2022-03-15 18:56:44,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:56:44,914 INFO L470 AbstractCegarLoop]: Abstraction has 1285 states and 5541 transitions. [2022-03-15 18:56:44,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 5.0625) internal successors, (81), 15 states have internal predecessors, (81), 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) [2022-03-15 18:56:44,914 INFO L276 IsEmpty]: Start isEmpty. Operand 1285 states and 5541 transitions. [2022-03-15 18:56:44,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-03-15 18:56:44,918 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:56:44,918 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 18:56:44,934 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-15 18:56:45,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:56:45,135 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 18:56:45,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:56:45,135 INFO L85 PathProgramCache]: Analyzing trace with hash 438408076, now seen corresponding path program 1 times [2022-03-15 18:56:45,136 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:56:45,136 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834993398] [2022-03-15 18:56:45,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:56:45,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:56:45,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:56:45,348 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 18:56:45,348 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:56:45,349 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834993398] [2022-03-15 18:56:45,349 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834993398] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 18:56:45,349 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980444687] [2022-03-15 18:56:45,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:56:45,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:56:45,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 18:56:45,350 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 18:56:45,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-15 18:56:45,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:56:45,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 65 conjunts are in the unsatisfiable core [2022-03-15 18:56:45,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 18:56:45,462 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 66 treesize of output 62 [2022-03-15 18:56:45,646 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 25 [2022-03-15 18:56:45,690 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 25 [2022-03-15 18:56:45,747 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 25 [2022-03-15 18:56:45,804 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 18:56:45,804 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 28 treesize of output 28 [2022-03-15 18:56:45,917 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:56:45,918 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 18:56:46,151 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 522 treesize of output 360 [2022-03-15 18:56:46,155 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 360 treesize of output 332 [2022-03-15 18:56:46,158 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 332 treesize of output 276 [2022-03-15 18:56:46,162 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 144 treesize of output 130 [2022-03-15 18:56:46,394 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:56:46,395 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1980444687] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 18:56:46,395 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 18:56:46,395 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 11, 11] total 29 [2022-03-15 18:56:46,395 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2121158357] [2022-03-15 18:56:46,395 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:56:46,398 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:56:46,437 INFO L252 McrAutomatonBuilder]: Finished intersection with 202 states and 526 transitions. [2022-03-15 18:56:46,437 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:56:55,112 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 8 new interpolants: [25752#(and (or (<= (+ ~t11~0 ~s1~0) (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (not (= ~i1~0 (+ ~i2~0 1))) (< 2147483647 (+ ~t11~0 ~s1~0))) (or (< (+ ~t11~0 ~s1~0 2147483648) 0) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))) (+ ~t11~0 ~s1~0 1)) (not (= ~i1~0 (+ ~i2~0 1))) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))))), 25747#(and (or (< (+ ~t22~0 ~s2~0 2147483648) 0) (not (= ~i2~0 ~i1~0)) (< 2147483647 (+ ~t22~0 ~s2~0)) (<= ~s1~0 (+ ~t22~0 ~s2~0))) (or (< (+ ~t22~0 ~s2~0 2147483648) 0) (< (+ ~t22~0 ~s2~0) (+ ~s1~0 1)) (not (= ~i2~0 ~i1~0)) (< 2147483647 (+ ~t22~0 ~s2~0)))), 25748#(and (or (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (not (= ~i1~0 (+ ~i2~0 1))) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))) (+ ~s1~0 1))) (or (<= ~s1~0 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (not (= ~i1~0 (+ ~i2~0 1))) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))))), 25750#(and (or (< (+ ~t22~0 ~s2~0 2147483648) 0) (<= (+ ~t11~0 ~s1~0) (+ ~t22~0 ~s2~0)) (not (= ~i2~0 ~i1~0)) (< 2147483647 (+ ~t11~0 ~s1~0))) (or (< (+ ~t11~0 ~s1~0 2147483648) 0) (not (= ~i2~0 ~i1~0)) (< 2147483647 (+ ~t22~0 ~s2~0)) (< (+ ~t22~0 ~s2~0) (+ ~t11~0 ~s1~0 1)))), 25753#(and (or (< (+ ~t11~0 ~s1~0 2147483648) 0) (not (= ~x~0.base |ULTIMATE.start_main_~#t2~0#1.base|)) (< 2147483647 (+ ~t11~0 ~s1~0))) (or (< (+ ~t11~0 ~s1~0 2147483648) 0) (<= (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4))) ~s2~0) (+ ~t11~0 ~s1~0)) (< 2147483647 (+ ~t11~0 ~s1~0))) (or (< (+ ~t11~0 ~s1~0 2147483648) 0) (<= (+ ~t11~0 ~s1~0) (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4))) ~s2~0)) (< 2147483647 (+ ~t11~0 ~s1~0)))), 25754#(and (or (< (+ ~t11~0 ~s1~0 2147483648) 0) (not (= ~x~0.base |ULTIMATE.start_main_~#t2~0#1.base|)) (< 2147483647 (+ ~t11~0 ~s1~0))) (or (< (+ ~t11~0 ~s1~0 2147483648) 0) (<= (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4))) ~s2~0) (+ ~t11~0 ~s1~0)) (< 2147483647 (+ ~t11~0 ~s1~0))) (or (not (= ~x~0.base |ULTIMATE.start_main_~#t4~0#1.base|)) (< (+ ~t11~0 ~s1~0 2147483648) 0) (< 2147483647 (+ ~t11~0 ~s1~0))) (or (< (+ ~t11~0 ~s1~0 2147483648) 0) (not (= ~x~0.base |ULTIMATE.start_main_~#t3~0#1.base|)) (< 2147483647 (+ ~t11~0 ~s1~0))) (or (< (+ ~t11~0 ~s1~0 2147483648) 0) (<= (+ ~t11~0 ~s1~0) (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4))) ~s2~0)) (< 2147483647 (+ ~t11~0 ~s1~0)))), 25749#(and (or (< (+ ~t11~0 ~s1~0 2147483648) 0) (not (= ~i2~0 ~i1~0)) (<= (+ ~t11~0 ~s1~0) ~s2~0) (< 2147483647 (+ ~t11~0 ~s1~0))) (or (< (+ ~t11~0 ~s1~0 2147483648) 0) (not (= ~i2~0 ~i1~0)) (< ~s2~0 (+ ~t11~0 ~s1~0 1)) (< 2147483647 (+ ~t11~0 ~s1~0)))), 25751#(and (or (<= (+ ~t22~0 ~s2~0) (+ ~t11~0 ~s1~0)) (< (+ ~t11~0 ~s1~0 2147483648) 0) (not (= ~i2~0 ~i1~0)) (< 2147483647 (+ ~t11~0 ~s1~0))) (or (< (+ ~t11~0 ~s1~0 2147483648) 0) (<= (+ ~t11~0 ~s1~0) (+ ~t22~0 ~s2~0)) (not (= ~i2~0 ~i1~0)) (< 2147483647 (+ ~t11~0 ~s1~0))))] [2022-03-15 18:56:55,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 18:56:55,112 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:56:55,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 18:56:55,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=1298, Unknown=18, NotChecked=0, Total=1482 [2022-03-15 18:56:55,113 INFO L87 Difference]: Start difference. First operand 1285 states and 5541 transitions. Second operand has 17 states, 16 states have (on average 5.3125) internal successors, (85), 16 states have internal predecessors, (85), 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) [2022-03-15 18:56:56,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:56:56,248 INFO L93 Difference]: Finished difference Result 2491 states and 10632 transitions. [2022-03-15 18:56:56,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 18:56:56,249 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 5.3125) internal successors, (85), 16 states have internal predecessors, (85), 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 [2022-03-15 18:56:56,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:56:56,261 INFO L225 Difference]: With dead ends: 2491 [2022-03-15 18:56:56,261 INFO L226 Difference]: Without dead ends: 2470 [2022-03-15 18:56:56,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 128 SyntacticMatches, 61 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2138 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=354, Invalid=2490, Unknown=18, NotChecked=0, Total=2862 [2022-03-15 18:56:56,267 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 206 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 918 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-15 18:56:56,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [206 Valid, 0 Invalid, 985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 918 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-15 18:56:56,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2470 states. [2022-03-15 18:56:56,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2470 to 1469. [2022-03-15 18:56:56,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1469 states, 1468 states have (on average 4.395776566757493) internal successors, (6453), 1468 states have internal predecessors, (6453), 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) [2022-03-15 18:56:56,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 6453 transitions. [2022-03-15 18:56:56,313 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 6453 transitions. Word has length 28 [2022-03-15 18:56:56,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:56:56,313 INFO L470 AbstractCegarLoop]: Abstraction has 1469 states and 6453 transitions. [2022-03-15 18:56:56,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 5.3125) internal successors, (85), 16 states have internal predecessors, (85), 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) [2022-03-15 18:56:56,314 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 6453 transitions. [2022-03-15 18:56:56,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-03-15 18:56:56,317 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:56:56,317 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 18:56:56,335 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-15 18:56:56,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:56:56,531 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 18:56:56,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:56:56,533 INFO L85 PathProgramCache]: Analyzing trace with hash 2021028198, now seen corresponding path program 3 times [2022-03-15 18:56:56,533 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:56:56,533 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303150495] [2022-03-15 18:56:56,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:56:56,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:56:56,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:56:56,645 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 18:56:56,645 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:56:56,645 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303150495] [2022-03-15 18:56:56,645 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303150495] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 18:56:56,645 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1229619624] [2022-03-15 18:56:56,645 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-15 18:56:56,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:56:56,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 18:56:56,648 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 18:56:56,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-15 18:56:56,754 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-03-15 18:56:56,754 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 18:56:56,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 46 conjunts are in the unsatisfiable core [2022-03-15 18:56:56,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 18:56:56,845 INFO L353 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-03-15 18:56:56,845 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 23 treesize of output 10 [2022-03-15 18:56:56,966 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 18:56:56,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 18:56:57,063 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 25 treesize of output 7 [2022-03-15 18:56:57,091 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-15 18:56:57,091 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1229619624] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 18:56:57,091 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 18:56:57,091 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 5] total 16 [2022-03-15 18:56:57,092 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [588613947] [2022-03-15 18:56:57,092 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:56:57,095 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:56:57,128 INFO L252 McrAutomatonBuilder]: Finished intersection with 181 states and 463 transitions. [2022-03-15 18:56:57,128 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:57:01,568 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 10 new interpolants: [31397#(and (or (< (+ ~t11~0 ~s1~0 2147483648) 0) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))) (+ ~t11~0 ~s1~0 1)) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))))) (or (<= (+ ~t11~0 ~s1~0) (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (< 2147483647 (+ ~t11~0 ~s1~0)))), 31398#(and (<= ~s1~0 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))) (<= (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))) ~s1~0)), 31394#(and (or (<= ~s1~0 (+ ~t12~0 ~s2~0)) (< 2147483647 (+ ~t12~0 ~s2~0)) (< (+ ~t12~0 ~s2~0 2147483648) 0)) (or (< (+ ~t12~0 ~s2~0) (+ ~s1~0 1)) (< 2147483647 (+ ~t12~0 ~s2~0)) (< (+ ~t12~0 ~s2~0 2147483648) 0))), 31400#(and (or (< (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0 2147483648) 0) (< 2147483647 (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0)) (< ~s2~0 (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0 1))) (or (<= (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0) ~s2~0) (< (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0 2147483648) 0) (< 2147483647 (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0)))), 31399#(and (= ~t11~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))) (<= ~s1~0 ~s2~0) (<= ~s2~0 ~s1~0)), 31401#(and (or (< (+ ~t12~0 ~s2~0) (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0 1)) (< (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0 2147483648) 0) (< 2147483647 (+ ~t12~0 ~s2~0))) (or (< (+ ~t12~0 ~s2~0 2147483648) 0) (< 2147483647 (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0)) (<= (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0) (+ ~t12~0 ~s2~0)))), 31393#(and (or (< (+ ~t11~0 ~s1~0 2147483648) 0) (< ~s2~0 (+ ~t11~0 ~s1~0 1)) (< 2147483647 (+ ~t11~0 ~s1~0))) (or (< (+ ~t11~0 ~s1~0 2147483648) 0) (<= (+ ~t11~0 ~s1~0) ~s2~0) (< 2147483647 (+ ~t11~0 ~s1~0)))), 31396#(and (or (<= ~s1~0 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))))) (or (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))) (+ ~s1~0 1)))), 31395#(and (or (<= (+ ~t11~0 ~s1~0) (+ ~t12~0 ~s2~0)) (< (+ ~t12~0 ~s2~0 2147483648) 0) (< 2147483647 (+ ~t11~0 ~s1~0))) (or (< (+ ~t11~0 ~s1~0 2147483648) 0) (< 2147483647 (+ ~t12~0 ~s2~0)) (< (+ ~t12~0 ~s2~0) (+ ~t11~0 ~s1~0 1)))), 31402#(and (or (< (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0 2147483648) 0) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))) (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0 1))) (or (< 2147483647 (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0)) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (<= (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0) (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))))))] [2022-03-15 18:57:01,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 18:57:01,568 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:57:01,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 18:57:01,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=600, Unknown=0, NotChecked=0, Total=702 [2022-03-15 18:57:01,569 INFO L87 Difference]: Start difference. First operand 1469 states and 6453 transitions. Second operand has 17 states, 16 states have (on average 5.3125) internal successors, (85), 17 states have internal predecessors, (85), 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) [2022-03-15 18:57:02,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:57:02,523 INFO L93 Difference]: Finished difference Result 2915 states and 12527 transitions. [2022-03-15 18:57:02,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-15 18:57:02,524 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 5.3125) internal successors, (85), 17 states have internal predecessors, (85), 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 [2022-03-15 18:57:02,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:57:02,540 INFO L225 Difference]: With dead ends: 2915 [2022-03-15 18:57:02,540 INFO L226 Difference]: Without dead ends: 2906 [2022-03-15 18:57:02,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 185 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=742, Unknown=0, NotChecked=0, Total=870 [2022-03-15 18:57:02,541 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 99 mSDsluCounter, 749 mSDsCounter, 0 mSdLazyCounter, 1830 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 18:57:02,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 0 Invalid, 1840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1830 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 18:57:02,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2906 states. [2022-03-15 18:57:02,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2906 to 1505. [2022-03-15 18:57:02,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1505 states, 1504 states have (on average 4.40625) internal successors, (6627), 1504 states have internal predecessors, (6627), 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) [2022-03-15 18:57:02,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 6627 transitions. [2022-03-15 18:57:02,588 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 6627 transitions. Word has length 28 [2022-03-15 18:57:02,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:57:02,588 INFO L470 AbstractCegarLoop]: Abstraction has 1505 states and 6627 transitions. [2022-03-15 18:57:02,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 5.3125) internal successors, (85), 17 states have internal predecessors, (85), 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) [2022-03-15 18:57:02,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 6627 transitions. [2022-03-15 18:57:02,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-03-15 18:57:02,592 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:57:02,592 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 18:57:02,611 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-15 18:57:02,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:57:02,808 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 18:57:02,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:57:02,808 INFO L85 PathProgramCache]: Analyzing trace with hash 574250022, now seen corresponding path program 4 times [2022-03-15 18:57:02,809 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:57:02,809 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624096799] [2022-03-15 18:57:02,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:57:02,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:57:02,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:57:02,918 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 18:57:02,918 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:57:02,918 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624096799] [2022-03-15 18:57:02,918 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624096799] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 18:57:02,918 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1240828845] [2022-03-15 18:57:02,918 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-15 18:57:02,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:57:02,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 18:57:02,920 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 18:57:02,921 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-15 18:57:03,025 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-15 18:57:03,026 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 18:57:03,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 57 conjunts are in the unsatisfiable core [2022-03-15 18:57:03,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 18:57:03,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 18:57:03,181 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2022-03-15 18:57:03,208 INFO L353 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-03-15 18:57:03,209 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 14 [2022-03-15 18:57:03,297 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 18:57:03,297 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 18:57:03,479 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 36 treesize of output 27 [2022-03-15 18:57:03,481 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 18 treesize of output 11 [2022-03-15 18:57:03,487 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-15 18:57:03,546 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 18:57:03,546 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1240828845] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 18:57:03,546 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 18:57:03,546 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 7] total 18 [2022-03-15 18:57:03,547 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1242954543] [2022-03-15 18:57:03,547 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:57:03,550 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:57:03,585 INFO L252 McrAutomatonBuilder]: Finished intersection with 181 states and 477 transitions. [2022-03-15 18:57:03,585 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:57:10,091 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 7 new interpolants: [37521#(and (or (not (= ~i2~0 ~i1~0)) (< 2147483647 (+ ~t12~0 ~s2~0)) (<= (+ ~t12~0 ~s2~0) (+ ~t11~0 ~s1~0)) (< (+ ~t12~0 ~s2~0 2147483648) 0)) (or (<= (+ ~t11~0 ~s1~0) (+ ~t12~0 ~s2~0)) (not (= ~i2~0 ~i1~0)) (< 2147483647 (+ ~t12~0 ~s2~0)) (< (+ ~t12~0 ~s2~0 2147483648) 0))), 37519#(and (or (< (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0) (+ ~s2~0 1)) (not (= (+ ~i1~0 1) ~i2~0)) (< (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0 2147483648) 0) (< 2147483647 (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0))) (or (not (= (+ ~i1~0 1) ~i2~0)) (< (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0 2147483648) 0) (<= ~s2~0 (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0)) (< 2147483647 (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0)))), 37520#(and (or (not (= (+ ~i1~0 1) ~i2~0)) (< (+ ~t12~0 ~s2~0 2147483648) 0) (< (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0) (+ ~t12~0 ~s2~0 1)) (< 2147483647 (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0))) (or (not (= (+ ~i1~0 1) ~i2~0)) (< (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0 2147483648) 0) (< 2147483647 (+ ~t12~0 ~s2~0)) (<= (+ ~t12~0 ~s2~0) (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0)))), 37522#(and (or (<= (+ ~t12~0 ~s2~0) (+ ~s1~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4))))) (< 2147483647 (+ ~t12~0 ~s2~0)) (< (+ ~t12~0 ~s2~0 2147483648) 0)) (or (< 2147483647 (+ ~t12~0 ~s2~0)) (< (+ ~t12~0 ~s2~0 2147483648) 0) (<= (+ ~s1~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4)))) (+ ~t12~0 ~s2~0))) (or (not (= ~x~0.base |ULTIMATE.start_main_~#t4~0#1.base|)) (< 2147483647 (+ ~t12~0 ~s2~0)) (< (+ ~t12~0 ~s2~0 2147483648) 0))), 37516#(and (or (< (+ ~t11~0 ~s1~0) (+ ~s2~0 1)) (< (+ ~t11~0 ~s1~0 2147483648) 0) (not (= ~i2~0 ~i1~0)) (< 2147483647 (+ ~t11~0 ~s1~0))) (or (< (+ ~t11~0 ~s1~0 2147483648) 0) (<= ~s2~0 (+ ~t11~0 ~s1~0)) (not (= ~i2~0 ~i1~0)) (< 2147483647 (+ ~t11~0 ~s1~0)))), 37518#(and (or (< (+ ~t11~0 ~s1~0) (+ ~t12~0 ~s2~0 1)) (not (= ~i2~0 ~i1~0)) (< (+ ~t12~0 ~s2~0 2147483648) 0) (< 2147483647 (+ ~t11~0 ~s1~0))) (or (< (+ ~t11~0 ~s1~0 2147483648) 0) (not (= ~i2~0 ~i1~0)) (< 2147483647 (+ ~t12~0 ~s2~0)) (<= (+ ~t12~0 ~s2~0) (+ ~t11~0 ~s1~0)))), 37517#(and (or (not (= ~i2~0 ~i1~0)) (< 2147483647 (+ ~t12~0 ~s2~0)) (<= (+ ~t12~0 ~s2~0) ~s1~0) (< (+ ~t12~0 ~s2~0 2147483648) 0)) (or (< ~s1~0 (+ ~t12~0 ~s2~0 1)) (not (= ~i2~0 ~i1~0)) (< 2147483647 (+ ~t12~0 ~s2~0)) (< (+ ~t12~0 ~s2~0 2147483648) 0)))] [2022-03-15 18:57:10,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-15 18:57:10,091 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:57:10,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-15 18:57:10,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=574, Unknown=4, NotChecked=0, Total=702 [2022-03-15 18:57:10,092 INFO L87 Difference]: Start difference. First operand 1505 states and 6627 transitions. Second operand has 15 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 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) [2022-03-15 18:57:11,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:57:11,083 INFO L93 Difference]: Finished difference Result 3139 states and 13547 transitions. [2022-03-15 18:57:11,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 18:57:11,083 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 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 28 [2022-03-15 18:57:11,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:57:11,093 INFO L225 Difference]: With dead ends: 3139 [2022-03-15 18:57:11,093 INFO L226 Difference]: Without dead ends: 3130 [2022-03-15 18:57:11,094 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 127 SyntacticMatches, 57 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1469 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=250, Invalid=1468, Unknown=4, NotChecked=0, Total=1722 [2022-03-15 18:57:11,094 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 210 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 1118 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-15 18:57:11,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 0 Invalid, 1148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1118 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-15 18:57:11,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3130 states. [2022-03-15 18:57:11,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3130 to 1589. [2022-03-15 18:57:11,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1589 states, 1588 states have (on average 4.4552896725440805) internal successors, (7075), 1588 states have internal predecessors, (7075), 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) [2022-03-15 18:57:11,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1589 states to 1589 states and 7075 transitions. [2022-03-15 18:57:11,135 INFO L78 Accepts]: Start accepts. Automaton has 1589 states and 7075 transitions. Word has length 28 [2022-03-15 18:57:11,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:57:11,135 INFO L470 AbstractCegarLoop]: Abstraction has 1589 states and 7075 transitions. [2022-03-15 18:57:11,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 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) [2022-03-15 18:57:11,135 INFO L276 IsEmpty]: Start isEmpty. Operand 1589 states and 7075 transitions. [2022-03-15 18:57:11,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-03-15 18:57:11,139 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:57:11,139 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 18:57:11,155 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-15 18:57:11,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-03-15 18:57:11,355 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 18:57:11,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:57:11,356 INFO L85 PathProgramCache]: Analyzing trace with hash 232433047, now seen corresponding path program 1 times [2022-03-15 18:57:11,356 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:57:11,357 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66720275] [2022-03-15 18:57:11,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:57:11,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:57:11,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:57:11,615 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:57:11,615 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:57:11,615 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66720275] [2022-03-15 18:57:11,615 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66720275] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 18:57:11,615 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31159140] [2022-03-15 18:57:11,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:57:11,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:57:11,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 18:57:11,616 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 18:57:11,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-15 18:57:11,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:57:11,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 53 conjunts are in the unsatisfiable core [2022-03-15 18:57:11,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 18:57:11,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 18:57:11,919 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2022-03-15 18:57:11,962 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 18:57:11,962 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 [2022-03-15 18:57:12,090 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:57:12,090 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 18:57:12,291 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 54 treesize of output 30 [2022-03-15 18:57:12,293 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 17 treesize of output 11 [2022-03-15 18:57:12,422 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:57:12,422 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [31159140] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 18:57:12,422 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 18:57:12,422 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 29 [2022-03-15 18:57:12,423 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [884832853] [2022-03-15 18:57:12,423 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:57:12,426 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:57:12,491 INFO L252 McrAutomatonBuilder]: Finished intersection with 207 states and 557 transitions. [2022-03-15 18:57:12,492 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:57:18,365 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 7 new interpolants: [44066#(and (or (< (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0) (+ ~s2~0 1)) (< (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0 2147483648) 0) (< 2147483647 (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0))) (or (< (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0 2147483648) 0) (<= ~s2~0 (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0)) (< 2147483647 (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0)))), 44067#(and (or (< (+ ~t12~0 ~s2~0 2147483648) 0) (< (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0) (+ ~t12~0 ~s2~0 1)) (< 2147483647 (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0))) (or (< (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0 2147483648) 0) (< 2147483647 (+ ~t12~0 ~s2~0)) (<= (+ ~t12~0 ~s2~0) (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0)))), 44068#(and (or (< 2147483647 (+ ~t12~0 ~s2~0)) (<= (+ ~t21~0 ~s1~0) (+ ~t12~0 ~s2~0)) (< (+ ~t12~0 ~s2~0 2147483648) 0)) (or (< 2147483647 (+ ~t12~0 ~s2~0)) (<= (+ ~t12~0 ~s2~0) (+ ~t21~0 ~s1~0)) (< (+ ~t12~0 ~s2~0 2147483648) 0))), 44069#(and (or (= ~x~0.offset 0) (< 2147483647 (+ ~t12~0 ~s2~0)) (< (+ ~t12~0 ~s2~0 2147483648) 0)) (or (<= (+ ~t12~0 ~s2~0) (+ ~s1~0 (select (select |#memory_int| ~x~0.base) (+ (* ~i1~0 4) 4)))) (< 2147483647 (+ ~t12~0 ~s2~0)) (< (+ ~t12~0 ~s2~0 2147483648) 0)) (or (< 2147483647 (+ ~t12~0 ~s2~0)) (< (+ ~t12~0 ~s2~0 2147483648) 0) (<= (+ ~s1~0 (select (select |#memory_int| ~x~0.base) (+ (* ~i1~0 4) 4))) (+ ~t12~0 ~s2~0)))), 44063#(and (or (< 2147483647 (+ ~t12~0 ~s2~0)) (<= (+ ~t12~0 ~s2~0) ~s1~0) (< (+ ~t12~0 ~s2~0 2147483648) 0)) (or (< ~s1~0 (+ ~t12~0 ~s2~0 1)) (< 2147483647 (+ ~t12~0 ~s2~0)) (< (+ ~t12~0 ~s2~0 2147483648) 0))), 44065#(and (or (< 2147483647 (+ ~t12~0 ~s2~0)) (<= (+ ~t12~0 ~s2~0) (+ ~t21~0 ~s1~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0)) (or (< 2147483647 (+ ~t21~0 ~s1~0)) (< (+ ~t21~0 ~s1~0) (+ ~t12~0 ~s2~0 1)) (< (+ ~t12~0 ~s2~0 2147483648) 0))), 44064#(and (or (< 2147483647 (+ ~t21~0 ~s1~0)) (<= ~s2~0 (+ ~t21~0 ~s1~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0)) (or (< (+ ~t21~0 ~s1~0) (+ ~s2~0 1)) (< 2147483647 (+ ~t21~0 ~s1~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0)))] [2022-03-15 18:57:18,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-15 18:57:18,366 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:57:18,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-15 18:57:18,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=1274, Unknown=6, NotChecked=0, Total=1406 [2022-03-15 18:57:18,366 INFO L87 Difference]: Start difference. First operand 1589 states and 7075 transitions. Second operand has 20 states, 19 states have (on average 4.2631578947368425) internal successors, (81), 19 states have internal predecessors, (81), 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) [2022-03-15 18:57:19,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:57:19,163 INFO L93 Difference]: Finished difference Result 2328 states and 10173 transitions. [2022-03-15 18:57:19,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-15 18:57:19,164 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 4.2631578947368425) internal successors, (81), 19 states have internal predecessors, (81), 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 [2022-03-15 18:57:19,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:57:19,171 INFO L225 Difference]: With dead ends: 2328 [2022-03-15 18:57:19,171 INFO L226 Difference]: Without dead ends: 2319 [2022-03-15 18:57:19,172 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 201 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=175, Invalid=1799, Unknown=6, NotChecked=0, Total=1980 [2022-03-15 18:57:19,172 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 141 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 1282 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-15 18:57:19,172 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 0 Invalid, 1316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1282 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-15 18:57:19,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2319 states. [2022-03-15 18:57:19,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2319 to 1667. [2022-03-15 18:57:19,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1667 states, 1666 states have (on average 4.433973589435774) internal successors, (7387), 1666 states have internal predecessors, (7387), 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) [2022-03-15 18:57:19,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1667 states to 1667 states and 7387 transitions. [2022-03-15 18:57:19,208 INFO L78 Accepts]: Start accepts. Automaton has 1667 states and 7387 transitions. Word has length 28 [2022-03-15 18:57:19,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:57:19,209 INFO L470 AbstractCegarLoop]: Abstraction has 1667 states and 7387 transitions. [2022-03-15 18:57:19,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 4.2631578947368425) internal successors, (81), 19 states have internal predecessors, (81), 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) [2022-03-15 18:57:19,209 INFO L276 IsEmpty]: Start isEmpty. Operand 1667 states and 7387 transitions. [2022-03-15 18:57:19,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-03-15 18:57:19,213 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:57:19,213 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 18:57:19,236 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-03-15 18:57:19,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:57:19,438 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 18:57:19,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:57:19,439 INFO L85 PathProgramCache]: Analyzing trace with hash 571291196, now seen corresponding path program 2 times [2022-03-15 18:57:19,439 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:57:19,439 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483942165] [2022-03-15 18:57:19,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:57:19,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:57:19,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:57:19,595 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:57:19,595 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:57:19,595 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483942165] [2022-03-15 18:57:19,595 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483942165] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 18:57:19,596 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2112779707] [2022-03-15 18:57:19,596 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-15 18:57:19,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:57:19,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 18:57:19,597 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 18:57:19,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-15 18:57:19,710 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-15 18:57:19,711 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 18:57:19,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 46 conjunts are in the unsatisfiable core [2022-03-15 18:57:19,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 18:57:19,862 INFO L353 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-03-15 18:57:19,862 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 23 treesize of output 10 [2022-03-15 18:57:19,966 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 18:57:19,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 18:57:20,058 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 25 treesize of output 7 [2022-03-15 18:57:20,098 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-15 18:57:20,098 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2112779707] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 18:57:20,099 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 18:57:20,099 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 5] total 19 [2022-03-15 18:57:20,099 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1771567065] [2022-03-15 18:57:20,099 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:57:20,102 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:57:20,145 INFO L252 McrAutomatonBuilder]: Finished intersection with 217 states and 589 transitions. [2022-03-15 18:57:20,145 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:57:29,495 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 10 new interpolants: [49931#(and (or (< (+ ~t22~0 ~s2~0 2147483648) 0) (<= (+ ~t11~0 ~s1~0) (+ ~t22~0 ~s2~0)) (< 2147483647 (+ ~t11~0 ~s1~0))) (or (< (+ ~t11~0 ~s1~0 2147483648) 0) (< 2147483647 (+ ~t22~0 ~s2~0)) (< (+ ~t22~0 ~s2~0) (+ ~t11~0 ~s1~0 1)))), 49930#(and (or (<= ~n~0 ~i1~0) (< (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0 2147483648) 0) (< 2147483647 (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0)) (< ~s2~0 (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0 1))) (or (<= (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0) ~s2~0) (<= ~n~0 ~i1~0) (< (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0 2147483648) 0) (< 2147483647 (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0)))), 49936#(and (or (<= (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))) ~s1~0) (<= ~n~0 ~i2~0)) (or (<= ~s1~0 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))) (<= ~n~0 ~i2~0))), 49933#(and (or (<= (+ ~t11~0 ~s1~0) (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (<= ~n~0 ~i2~0) (< 2147483647 (+ ~t11~0 ~s1~0))) (or (< (+ ~t11~0 ~s1~0 2147483648) 0) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))) (+ ~t11~0 ~s1~0 1)) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))) (<= ~n~0 ~i2~0))), 49928#(and (or (< (+ ~t22~0 ~s2~0 2147483648) 0) (< 2147483647 (+ ~t22~0 ~s2~0)) (<= ~s1~0 (+ ~t22~0 ~s2~0))) (or (< (+ ~t22~0 ~s2~0 2147483648) 0) (< (+ ~t22~0 ~s2~0) (+ ~s1~0 1)) (< 2147483647 (+ ~t22~0 ~s2~0)))), 49937#(and (or (<= ~s1~0 ~s2~0) (<= ~n~0 ~i2~0)) (or (<= ~s2~0 ~s1~0) (<= ~n~0 ~i2~0)) (or (= ~t11~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))) (<= ~n~0 ~i2~0))), 49934#(and (or (< (+ ~t22~0 ~s2~0 2147483648) 0) (<= ~n~0 ~i1~0) (<= (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0) (+ ~t22~0 ~s2~0)) (< 2147483647 (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0))) (or (<= ~n~0 ~i1~0) (< (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0 2147483648) 0) (< 2147483647 (+ ~t22~0 ~s2~0)) (< (+ ~t22~0 ~s2~0) (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0 1)))), 49929#(and (or (< (+ ~t11~0 ~s1~0 2147483648) 0) (< ~s2~0 (+ ~t11~0 ~s1~0 1)) (< 2147483647 (+ ~t11~0 ~s1~0))) (or (< (+ ~t11~0 ~s1~0 2147483648) 0) (<= (+ ~t11~0 ~s1~0) ~s2~0) (< 2147483647 (+ ~t11~0 ~s1~0)))), 49932#(and (or (<= ~s1~0 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))) (<= ~n~0 ~i2~0)) (or (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))) (<= ~n~0 ~i2~0) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))) (+ ~s1~0 1)))), 49935#(and (or (<= ~n~0 ~i1~0) (< (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0 2147483648) 0) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))) (<= ~n~0 ~i2~0) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))) (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0 1))) (or (<= ~n~0 ~i1~0) (< 2147483647 (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0)) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (<= (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0) (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))) (<= ~n~0 ~i2~0)))] [2022-03-15 18:57:29,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-15 18:57:29,496 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:57:29,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-15 18:57:29,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=765, Unknown=0, NotChecked=0, Total=870 [2022-03-15 18:57:29,497 INFO L87 Difference]: Start difference. First operand 1667 states and 7387 transitions. Second operand has 20 states, 19 states have (on average 5.526315789473684) internal successors, (105), 19 states have internal predecessors, (105), 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) [2022-03-15 18:57:37,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:57:37,049 INFO L93 Difference]: Finished difference Result 9205 states and 39534 transitions. [2022-03-15 18:57:37,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-03-15 18:57:37,050 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 5.526315789473684) internal successors, (105), 19 states have internal predecessors, (105), 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 [2022-03-15 18:57:37,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:57:37,072 INFO L225 Difference]: With dead ends: 9205 [2022-03-15 18:57:37,073 INFO L226 Difference]: Without dead ends: 9067 [2022-03-15 18:57:37,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 203 SyntacticMatches, 19 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4299 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=2165, Invalid=11407, Unknown=0, NotChecked=0, Total=13572 [2022-03-15 18:57:37,076 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 533 mSDsluCounter, 1354 mSDsCounter, 0 mSdLazyCounter, 3407 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 3657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 3407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-15 18:57:37,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [533 Valid, 0 Invalid, 3657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 3407 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-15 18:57:37,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9067 states. [2022-03-15 18:57:37,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9067 to 2424. [2022-03-15 18:57:37,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2424 states, 2423 states have (on average 4.535699546017334) internal successors, (10990), 2423 states have internal predecessors, (10990), 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) [2022-03-15 18:57:37,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2424 states to 2424 states and 10990 transitions. [2022-03-15 18:57:37,174 INFO L78 Accepts]: Start accepts. Automaton has 2424 states and 10990 transitions. Word has length 28 [2022-03-15 18:57:37,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:57:37,174 INFO L470 AbstractCegarLoop]: Abstraction has 2424 states and 10990 transitions. [2022-03-15 18:57:37,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 5.526315789473684) internal successors, (105), 19 states have internal predecessors, (105), 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) [2022-03-15 18:57:37,175 INFO L276 IsEmpty]: Start isEmpty. Operand 2424 states and 10990 transitions. [2022-03-15 18:57:37,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-03-15 18:57:37,180 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:57:37,180 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 18:57:37,201 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-03-15 18:57:37,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-03-15 18:57:37,395 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 18:57:37,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:57:37,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1050656933, now seen corresponding path program 1 times [2022-03-15 18:57:37,397 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:57:37,397 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506613529] [2022-03-15 18:57:37,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:57:37,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:57:37,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:57:37,508 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 18:57:37,509 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:57:37,509 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506613529] [2022-03-15 18:57:37,509 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506613529] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 18:57:37,509 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [850351546] [2022-03-15 18:57:37,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:57:37,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:57:37,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 18:57:37,510 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 18:57:37,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-15 18:57:37,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:57:37,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 44 conjunts are in the unsatisfiable core [2022-03-15 18:57:37,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 18:57:37,710 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 18:57:37,710 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 25 treesize of output 25 [2022-03-15 18:57:37,777 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 18:57:37,777 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 18:57:37,931 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 18:57:37,932 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [850351546] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 18:57:37,932 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 18:57:37,932 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 6] total 12 [2022-03-15 18:57:37,932 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2027399813] [2022-03-15 18:57:37,932 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:57:37,935 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:57:37,983 INFO L252 McrAutomatonBuilder]: Finished intersection with 251 states and 697 transitions. [2022-03-15 18:57:37,983 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:57:50,891 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 12 new interpolants: [64344#(and (or (< (+ ~t22~0 ~s2~0 2147483648) 0) (not (= (+ ~i1~0 1) ~i2~0)) (<= (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0) (+ ~t22~0 ~s2~0)) (< 2147483647 (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0))) (or (not (= (+ ~i1~0 1) ~i2~0)) (< (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0 2147483648) 0) (< 2147483647 (+ ~t22~0 ~s2~0)) (< (+ ~t22~0 ~s2~0) (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0 1)))), 64346#(and (or (< 2147483647 (+ ~t21~0 ~s1~0)) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (not (= ~i1~0 (+ ~i2~0 1))) (<= (+ ~t21~0 ~s1~0) (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))))) (or (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))) (+ ~t21~0 ~s1~0 1)) (< (+ ~t21~0 ~s1~0 2147483648) 0) (not (= ~i1~0 (+ ~i2~0 1))) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))))), 64351#(and (or (<= ~s2~0 ~s1~0) (< (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0 2147483648) 0) (< 2147483647 (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0))) (or (<= ~s1~0 ~s2~0) (< (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0 2147483648) 0) (< 2147483647 (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0)))), 64341#(and (or (<= (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0) ~s2~0) (not (= (+ ~i1~0 1) ~i2~0)) (< (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0 2147483648) 0) (< 2147483647 (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0))) (or (not (= (+ ~i1~0 1) ~i2~0)) (< (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0 2147483648) 0) (< 2147483647 (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0)) (< ~s2~0 (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0 1)))), 64350#(and (or (not (= (+ ~i1~0 1) ~i2~0)) (<= (+ ~t22~0 ~s2~0) (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0)) (< (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0 2147483648) 0) (< 2147483647 (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0))) (or (not (= (+ ~i1~0 1) ~i2~0)) (< (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0 2147483648) 0) (<= (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0) (+ ~t22~0 ~s2~0)) (< 2147483647 (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0)))), 64349#(and (or (<= (+ ~t21~0 ~s1~0) (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4))) ~s2~0)) (< 2147483647 (+ ~t21~0 ~s1~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0)) (or (< 2147483647 (+ ~t21~0 ~s1~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0) (<= (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4))) ~s2~0) (+ ~t21~0 ~s1~0)))), 64342#(and (or (< (+ ~t22~0 ~s2~0 2147483648) 0) (not (= ~i2~0 ~i1~0)) (< 2147483647 (+ ~t22~0 ~s2~0)) (<= ~s1~0 (+ ~t22~0 ~s2~0))) (or (< (+ ~t22~0 ~s2~0 2147483648) 0) (< (+ ~t22~0 ~s2~0) (+ ~s1~0 1)) (not (= ~i2~0 ~i1~0)) (< 2147483647 (+ ~t22~0 ~s2~0)))), 64340#(and (or (< 2147483647 (+ ~t21~0 ~s1~0)) (<= (+ ~t21~0 ~s1~0) ~s2~0) (not (= ~i2~0 ~i1~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0)) (or (< 2147483647 (+ ~t21~0 ~s1~0)) (not (= ~i2~0 ~i1~0)) (< ~s2~0 (+ ~t21~0 ~s1~0 1)) (< (+ ~t21~0 ~s1~0 2147483648) 0))), 64343#(and (or (< (+ ~t22~0 ~s2~0) (+ ~t21~0 ~s1~0 1)) (not (= ~i2~0 ~i1~0)) (< 2147483647 (+ ~t22~0 ~s2~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0)) (or (< (+ ~t22~0 ~s2~0 2147483648) 0) (< 2147483647 (+ ~t21~0 ~s1~0)) (not (= ~i2~0 ~i1~0)) (<= (+ ~t21~0 ~s1~0) (+ ~t22~0 ~s2~0)))), 64347#(and (or (not (= ~i2~0 ~i1~0)) (< 2147483647 (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0)) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (<= (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0) (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))))) (or (< (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0 2147483648) 0) (not (= ~i2~0 ~i1~0)) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))) (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0 1)))), 64345#(and (or (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (not (= ~i1~0 (+ ~i2~0 1))) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))) (+ ~s1~0 1))) (or (<= ~s1~0 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (not (= ~i1~0 (+ ~i2~0 1))) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))))), 64348#(and (or (< 2147483647 (+ ~t21~0 ~s1~0)) (not (= ~i2~0 ~i1~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0) (<= (+ ~t21~0 ~s1~0) (+ ~t22~0 ~s2~0))) (or (<= (+ ~t22~0 ~s2~0) (+ ~t21~0 ~s1~0)) (< 2147483647 (+ ~t21~0 ~s1~0)) (not (= ~i2~0 ~i1~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0)))] [2022-03-15 18:57:50,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 18:57:50,891 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:57:50,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 18:57:50,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=517, Unknown=0, NotChecked=0, Total=600 [2022-03-15 18:57:50,892 INFO L87 Difference]: Start difference. First operand 2424 states and 10990 transitions. Second operand has 19 states, 18 states have (on average 6.611111111111111) internal successors, (119), 19 states have internal predecessors, (119), 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) [2022-03-15 18:57:52,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:57:52,092 INFO L93 Difference]: Finished difference Result 4239 states and 18724 transitions. [2022-03-15 18:57:52,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-15 18:57:52,092 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 6.611111111111111) internal successors, (119), 19 states have internal predecessors, (119), 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 [2022-03-15 18:57:52,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:57:52,103 INFO L225 Difference]: With dead ends: 4239 [2022-03-15 18:57:52,103 INFO L226 Difference]: Without dead ends: 4210 [2022-03-15 18:57:52,103 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 191 SyntacticMatches, 68 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 825 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=149, Invalid=843, Unknown=0, NotChecked=0, Total=992 [2022-03-15 18:57:52,104 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 135 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 1789 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-15 18:57:52,104 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 0 Invalid, 1812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1789 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-15 18:57:52,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4210 states. [2022-03-15 18:57:52,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4210 to 2661. [2022-03-15 18:57:52,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2661 states, 2660 states have (on average 4.58421052631579) internal successors, (12194), 2660 states have internal predecessors, (12194), 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) [2022-03-15 18:57:52,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2661 states to 2661 states and 12194 transitions. [2022-03-15 18:57:52,168 INFO L78 Accepts]: Start accepts. Automaton has 2661 states and 12194 transitions. Word has length 28 [2022-03-15 18:57:52,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:57:52,168 INFO L470 AbstractCegarLoop]: Abstraction has 2661 states and 12194 transitions. [2022-03-15 18:57:52,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 6.611111111111111) internal successors, (119), 19 states have internal predecessors, (119), 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) [2022-03-15 18:57:52,168 INFO L276 IsEmpty]: Start isEmpty. Operand 2661 states and 12194 transitions. [2022-03-15 18:57:52,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-03-15 18:57:52,174 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:57:52,174 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 18:57:52,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-03-15 18:57:52,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-03-15 18:57:52,391 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 18:57:52,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:57:52,392 INFO L85 PathProgramCache]: Analyzing trace with hash -776798181, now seen corresponding path program 2 times [2022-03-15 18:57:52,392 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:57:52,392 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983928182] [2022-03-15 18:57:52,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:57:52,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:57:52,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:57:52,593 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:57:52,594 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:57:52,594 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983928182] [2022-03-15 18:57:52,594 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983928182] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 18:57:52,594 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903856879] [2022-03-15 18:57:52,594 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-15 18:57:52,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:57:52,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 18:57:52,596 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 18:57:52,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-03-15 18:57:52,716 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-15 18:57:52,716 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 18:57:52,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 46 conjunts are in the unsatisfiable core [2022-03-15 18:57:52,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 18:57:52,825 INFO L353 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-03-15 18:57:52,825 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 23 treesize of output 10 [2022-03-15 18:57:52,937 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 18:57:52,937 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 18:57:53,038 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 25 treesize of output 7 [2022-03-15 18:57:53,074 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-15 18:57:53,075 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903856879] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 18:57:53,075 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 18:57:53,075 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 5] total 19 [2022-03-15 18:57:53,075 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1942162820] [2022-03-15 18:57:53,075 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:57:53,078 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:57:53,130 INFO L252 McrAutomatonBuilder]: Finished intersection with 261 states and 736 transitions. [2022-03-15 18:57:53,130 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:58:09,641 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 10 new interpolants: [74109#(and (or (< 2147483647 (+ ~t21~0 ~s1~0)) (<= (+ ~n~0 1) ~i1~0) (<= ~s2~0 (+ ~t21~0 ~s1~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0) (<= (+ ~i1~0 1) ~n~0)) (or (< (+ ~t21~0 ~s1~0) (+ ~s2~0 1)) (< 2147483647 (+ ~t21~0 ~s1~0)) (<= (+ ~n~0 1) ~i1~0) (< (+ ~t21~0 ~s1~0 2147483648) 0) (<= (+ ~i1~0 1) ~n~0))), 74113#(and (or (< 2147483647 (+ ~t21~0 ~s1~0)) (<= (+ ~n~0 1) ~i1~0) (< (+ ~t21~0 ~s1~0) (+ ~t12~0 ~s2~0 1)) (< (+ ~t12~0 ~s2~0 2147483648) 0) (<= (+ ~i1~0 1) ~n~0)) (or (<= (+ ~n~0 1) ~i1~0) (< 2147483647 (+ ~t12~0 ~s2~0)) (<= (+ ~t12~0 ~s2~0) (+ ~t21~0 ~s1~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0) (<= (+ ~i1~0 1) ~n~0))), 74114#(and (or (< (+ ~t21~0 ~s1~0) (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 1)) (< 2147483647 (+ ~t21~0 ~s1~0)) (<= (+ ~n~0 1) ~i1~0) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (<= ~n~0 ~i2~0) (<= (+ ~i1~0 1) ~n~0)) (or (<= (+ ~n~0 1) ~i1~0) (<= (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))) (+ ~t21~0 ~s1~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))) (<= ~n~0 ~i2~0) (<= (+ ~i1~0 1) ~n~0))), 74111#(and (or (<= (+ ~n~0 1) ~i1~0) (< ~s1~0 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 1)) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))) (<= ~n~0 ~i2~0) (<= (+ ~i1~0 1) ~n~0)) (or (<= (+ ~n~0 1) ~i1~0) (<= (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))) ~s1~0) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))) (<= ~n~0 ~i2~0) (<= (+ ~i1~0 1) ~n~0))), 74110#(and (or (< ~s1~0 (+ ~t12~0 ~s2~0 1)) (<= (+ ~n~0 1) ~i1~0) (< 2147483647 (+ ~t12~0 ~s2~0)) (< (+ ~t12~0 ~s2~0 2147483648) 0) (<= (+ ~i1~0 1) ~n~0)) (or (<= (+ ~n~0 1) ~i1~0) (< 2147483647 (+ ~t12~0 ~s2~0)) (<= (+ ~t12~0 ~s2~0) ~s1~0) (< (+ ~t12~0 ~s2~0 2147483648) 0) (<= (+ ~i1~0 1) ~n~0))), 74118#(and (or (<= ~s1~0 ~s2~0) (<= ~n~0 ~i1~0)) (or (<= ~n~0 ~i1~0) (<= ~s2~0 ~s1~0)) (or (<= (+ 2 ~i1~0) ~n~0) (= ~t12~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4))) (<= ~n~0 ~i1~0))), 74115#(and (or (<= (+ 2 ~i1~0) ~n~0) (<= ~n~0 ~i1~0) (< (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0 2147483648) 0) (< 2147483647 (+ ~t12~0 ~s2~0)) (<= (+ ~t12~0 ~s2~0) (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0))) (or (<= (+ 2 ~i1~0) ~n~0) (<= ~n~0 ~i1~0) (< (+ ~t12~0 ~s2~0 2147483648) 0) (< (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0) (+ ~t12~0 ~s2~0 1)) (< 2147483647 (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0)))), 74112#(and (or (<= (+ 2 ~i1~0) ~n~0) (<= ~n~0 ~i1~0) (< (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0 2147483648) 0) (<= ~s2~0 (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0)) (< 2147483647 (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0))) (or (< (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0) (+ ~s2~0 1)) (<= (+ 2 ~i1~0) ~n~0) (<= ~n~0 ~i1~0) (< (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0 2147483648) 0) (< 2147483647 (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0)))), 74117#(and (or (<= (+ 2 ~i1~0) ~n~0) (<= (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0) ~s2~0) (<= ~n~0 ~i1~0)) (or (<= (+ 2 ~i1~0) ~n~0) (<= ~n~0 ~i1~0) (<= ~s2~0 (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0)))), 74116#(and (or (<= (+ 2 ~i1~0) ~n~0) (<= ~n~0 ~i1~0) (< (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0 2147483648) 0) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))) (<= ~n~0 ~i2~0) (<= (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))) (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0))) (or (<= (+ 2 ~i1~0) ~n~0) (< (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0) (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 1)) (<= ~n~0 ~i1~0) (< 2147483647 (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4) 4)) ~s1~0)) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (<= ~n~0 ~i2~0)))] [2022-03-15 18:58:09,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-15 18:58:09,642 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:58:09,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-15 18:58:09,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=764, Unknown=0, NotChecked=0, Total=870 [2022-03-15 18:58:09,642 INFO L87 Difference]: Start difference. First operand 2661 states and 12194 transitions. Second operand has 20 states, 19 states have (on average 5.7894736842105265) internal successors, (110), 19 states have internal predecessors, (110), 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) [2022-03-15 18:58:13,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:58:13,762 INFO L93 Difference]: Finished difference Result 6151 states and 27415 transitions. [2022-03-15 18:58:13,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-15 18:58:13,762 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 5.7894736842105265) internal successors, (110), 19 states have internal predecessors, (110), 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 [2022-03-15 18:58:13,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:58:13,778 INFO L225 Difference]: With dead ends: 6151 [2022-03-15 18:58:13,778 INFO L226 Difference]: Without dead ends: 6122 [2022-03-15 18:58:13,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 204 SyntacticMatches, 62 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1522 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=596, Invalid=3960, Unknown=0, NotChecked=0, Total=4556 [2022-03-15 18:58:13,780 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 310 mSDsluCounter, 981 mSDsCounter, 0 mSdLazyCounter, 2534 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 2651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 2534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-15 18:58:13,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [310 Valid, 0 Invalid, 2651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 2534 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-15 18:58:13,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6122 states. [2022-03-15 18:58:13,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6122 to 2736. [2022-03-15 18:58:13,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2736 states, 2735 states have (on average 4.5864716636197445) internal successors, (12544), 2735 states have internal predecessors, (12544), 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) [2022-03-15 18:58:13,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2736 states to 2736 states and 12544 transitions. [2022-03-15 18:58:13,858 INFO L78 Accepts]: Start accepts. Automaton has 2736 states and 12544 transitions. Word has length 28 [2022-03-15 18:58:13,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:58:13,858 INFO L470 AbstractCegarLoop]: Abstraction has 2736 states and 12544 transitions. [2022-03-15 18:58:13,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 5.7894736842105265) internal successors, (110), 19 states have internal predecessors, (110), 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) [2022-03-15 18:58:13,858 INFO L276 IsEmpty]: Start isEmpty. Operand 2736 states and 12544 transitions. [2022-03-15 18:58:13,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-03-15 18:58:13,864 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:58:13,864 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 18:58:13,883 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-03-15 18:58:14,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-03-15 18:58:14,073 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 18:58:14,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:58:14,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1479931037, now seen corresponding path program 2 times [2022-03-15 18:58:14,074 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:58:14,074 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095024060] [2022-03-15 18:58:14,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:58:14,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:58:14,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:58:14,220 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 18:58:14,221 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:58:14,221 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095024060] [2022-03-15 18:58:14,221 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095024060] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 18:58:14,221 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1527662527] [2022-03-15 18:58:14,221 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-15 18:58:14,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:58:14,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 18:58:14,222 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 18:58:14,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-03-15 18:58:14,335 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-15 18:58:14,335 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 18:58:14,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 51 conjunts are in the unsatisfiable core [2022-03-15 18:58:14,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 18:58:14,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 18:58:14,470 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-15 18:58:14,552 INFO L353 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-03-15 18:58:14,552 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 23 treesize of output 10 [2022-03-15 18:58:14,626 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 18:58:14,626 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 18:58:14,828 INFO L353 Elim1Store]: treesize reduction 14, result has 22.2 percent of original size [2022-03-15 18:58:14,828 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 58 treesize of output 35 [2022-03-15 18:58:14,830 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 18 treesize of output 11 [2022-03-15 18:58:14,836 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-15 18:58:14,840 INFO L353 Elim1Store]: treesize reduction 14, result has 22.2 percent of original size [2022-03-15 18:58:14,840 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 12 [2022-03-15 18:58:14,940 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 18:58:14,941 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1527662527] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 18:58:14,941 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 18:58:14,941 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 19 [2022-03-15 18:58:14,941 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1010335504] [2022-03-15 18:58:14,941 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:58:14,944 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:58:14,984 INFO L252 McrAutomatonBuilder]: Finished intersection with 217 states and 576 transitions. [2022-03-15 18:58:14,984 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:58:25,906 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 7 new interpolants: [86002#(and (or (<= (+ 2 ~i2~0) ~i1~0) (<= ~i1~0 ~i2~0) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))) (+ ~s1~0 1))) (or (<= (+ 2 ~i2~0) ~i1~0) (<= ~s1~0 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))) (<= ~i1~0 ~i2~0) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))))), 86005#(and (or (<= (+ ~i1~0 1) ~i2~0) (< 2147483647 (+ ~t21~0 ~s1~0)) (<= (+ ~i2~0 1) ~i1~0) (< (+ ~t21~0 ~s1~0 2147483648) 0) (<= (+ ~t21~0 ~s1~0) (+ ~t22~0 ~s2~0))) (or (<= (+ ~i1~0 1) ~i2~0) (<= (+ ~t22~0 ~s2~0) (+ ~t21~0 ~s1~0)) (< 2147483647 (+ ~t21~0 ~s1~0)) (<= (+ ~i2~0 1) ~i1~0) (< (+ ~t21~0 ~s1~0 2147483648) 0))), 86004#(and (or (< (+ ~t22~0 ~s2~0 2147483648) 0) (<= (+ ~i1~0 1) ~i2~0) (< 2147483647 (+ ~t21~0 ~s1~0)) (<= (+ ~i2~0 1) ~i1~0) (<= (+ ~t21~0 ~s1~0) (+ ~t22~0 ~s2~0))) (or (<= (+ ~i1~0 1) ~i2~0) (< (+ ~t22~0 ~s2~0) (+ ~t21~0 ~s1~0 1)) (< 2147483647 (+ ~t22~0 ~s2~0)) (<= (+ ~i2~0 1) ~i1~0) (< (+ ~t21~0 ~s1~0 2147483648) 0))), 86006#(and (or (<= (+ 2 ~i2~0) ~i1~0) (< 2147483647 (+ ~t21~0 ~s1~0)) (<= ~i1~0 ~i2~0) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (<= (+ ~t21~0 ~s1~0) (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))))) (or (<= (+ 2 ~i2~0) ~i1~0) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))) (+ ~t21~0 ~s1~0 1)) (<= ~i1~0 ~i2~0) (< (+ ~t21~0 ~s1~0 2147483648) 0) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))))), 86007#(and (or (<= (+ ~t21~0 ~s1~0) (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4))) ~s2~0)) (< 2147483647 (+ ~t21~0 ~s1~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0)) (or (= ~x~0.offset 0) (< 2147483647 (+ ~t21~0 ~s1~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0)) (or (< 2147483647 (+ ~t21~0 ~s1~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0) (<= (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4))) ~s2~0) (+ ~t21~0 ~s1~0)))), 86001#(and (or (< (+ ~t22~0 ~s2~0 2147483648) 0) (<= (+ ~i1~0 1) ~i2~0) (< 2147483647 (+ ~t22~0 ~s2~0)) (<= (+ ~i2~0 1) ~i1~0) (<= ~s1~0 (+ ~t22~0 ~s2~0))) (or (< (+ ~t22~0 ~s2~0 2147483648) 0) (<= (+ ~i1~0 1) ~i2~0) (< (+ ~t22~0 ~s2~0) (+ ~s1~0 1)) (< 2147483647 (+ ~t22~0 ~s2~0)) (<= (+ ~i2~0 1) ~i1~0))), 86003#(and (or (<= (+ ~i1~0 1) ~i2~0) (< 2147483647 (+ ~t21~0 ~s1~0)) (<= (+ ~i2~0 1) ~i1~0) (< ~s2~0 (+ ~t21~0 ~s1~0 1)) (< (+ ~t21~0 ~s1~0 2147483648) 0)) (or (<= (+ ~i1~0 1) ~i2~0) (< 2147483647 (+ ~t21~0 ~s1~0)) (<= (+ ~t21~0 ~s1~0) ~s2~0) (<= (+ ~i2~0 1) ~i1~0) (< (+ ~t21~0 ~s1~0 2147483648) 0)))] [2022-03-15 18:58:25,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 18:58:25,906 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:58:25,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 18:58:25,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=625, Unknown=5, NotChecked=0, Total=756 [2022-03-15 18:58:25,907 INFO L87 Difference]: Start difference. First operand 2736 states and 12544 transitions. Second operand has 16 states, 15 states have (on average 5.933333333333334) internal successors, (89), 15 states have internal predecessors, (89), 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) [2022-03-15 18:58:26,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:58:26,820 INFO L93 Difference]: Finished difference Result 3985 states and 17742 transitions. [2022-03-15 18:58:26,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 18:58:26,820 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.933333333333334) internal successors, (89), 15 states have internal predecessors, (89), 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 [2022-03-15 18:58:26,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:58:26,830 INFO L225 Difference]: With dead ends: 3985 [2022-03-15 18:58:26,830 INFO L226 Difference]: Without dead ends: 3962 [2022-03-15 18:58:26,830 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 142 SyntacticMatches, 70 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1417 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=229, Invalid=1406, Unknown=5, NotChecked=0, Total=1640 [2022-03-15 18:58:26,830 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 123 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 968 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-15 18:58:26,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 0 Invalid, 989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 968 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-15 18:58:26,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3962 states. [2022-03-15 18:58:26,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3962 to 2822. [2022-03-15 18:58:26,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2822 states, 2821 states have (on average 4.599078341013825) internal successors, (12974), 2821 states have internal predecessors, (12974), 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) [2022-03-15 18:58:26,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2822 states to 2822 states and 12974 transitions. [2022-03-15 18:58:26,883 INFO L78 Accepts]: Start accepts. Automaton has 2822 states and 12974 transitions. Word has length 28 [2022-03-15 18:58:26,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:58:26,883 INFO L470 AbstractCegarLoop]: Abstraction has 2822 states and 12974 transitions. [2022-03-15 18:58:26,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.933333333333334) internal successors, (89), 15 states have internal predecessors, (89), 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) [2022-03-15 18:58:26,883 INFO L276 IsEmpty]: Start isEmpty. Operand 2822 states and 12974 transitions. [2022-03-15 18:58:26,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-03-15 18:58:26,889 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:58:26,889 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 18:58:26,908 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-03-15 18:58:27,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-03-15 18:58:27,106 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 18:58:27,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:58:27,107 INFO L85 PathProgramCache]: Analyzing trace with hash -243406435, now seen corresponding path program 3 times [2022-03-15 18:58:27,107 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:58:27,107 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762014610] [2022-03-15 18:58:27,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:58:27,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:58:27,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:58:27,204 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 18:58:27,204 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:58:27,204 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762014610] [2022-03-15 18:58:27,205 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762014610] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 18:58:27,205 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752865749] [2022-03-15 18:58:27,205 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-15 18:58:27,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:58:27,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 18:58:27,206 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 18:58:27,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-03-15 18:58:27,348 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-03-15 18:58:27,348 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 18:58:27,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 53 conjunts are in the unsatisfiable core [2022-03-15 18:58:27,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 18:58:27,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 18:58:27,514 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2022-03-15 18:58:27,552 INFO L353 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-03-15 18:58:27,553 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 25 treesize of output 12 [2022-03-15 18:58:27,625 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 18:58:27,625 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 18:58:27,795 INFO L353 Elim1Store]: treesize reduction 14, result has 22.2 percent of original size [2022-03-15 18:58:27,796 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 58 treesize of output 35 [2022-03-15 18:58:27,798 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 18 treesize of output 11 [2022-03-15 18:58:27,805 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-15 18:58:27,809 INFO L353 Elim1Store]: treesize reduction 14, result has 22.2 percent of original size [2022-03-15 18:58:27,809 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 1 case distinctions, treesize of input 25 treesize of output 12 [2022-03-15 18:58:27,882 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 18:58:27,882 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [752865749] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 18:58:27,882 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 18:58:27,882 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 17 [2022-03-15 18:58:27,882 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1128122808] [2022-03-15 18:58:27,882 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:58:27,886 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:58:27,927 INFO L252 McrAutomatonBuilder]: Finished intersection with 217 states and 576 transitions. [2022-03-15 18:58:27,927 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:58:36,724 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 7 new interpolants: [95844#(and (or (< (+ ~t22~0 ~s2~0 2147483648) 0) (not (= ~i2~0 ~i1~0)) (< 2147483647 (+ ~t22~0 ~s2~0)) (<= ~s1~0 (+ ~t22~0 ~s2~0))) (or (< (+ ~t22~0 ~s2~0 2147483648) 0) (< (+ ~t22~0 ~s2~0) (+ ~s1~0 1)) (not (= ~i2~0 ~i1~0)) (< 2147483647 (+ ~t22~0 ~s2~0)))), 95845#(and (or (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (not (= ~i1~0 (+ ~i2~0 1))) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))) (+ ~s1~0 1))) (or (<= ~s1~0 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (not (= ~i1~0 (+ ~i2~0 1))) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))))), 95848#(and (or (< 2147483647 (+ ~t21~0 ~s1~0)) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (not (= ~i1~0 (+ ~i2~0 1))) (<= (+ ~t21~0 ~s1~0) (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))))) (or (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))) (+ ~t21~0 ~s1~0 1)) (< (+ ~t21~0 ~s1~0 2147483648) 0) (not (= ~i1~0 (+ ~i2~0 1))) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))))), 95849#(and (or (< 2147483647 (+ ~t21~0 ~s1~0)) (not (= ~i2~0 ~i1~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0) (<= (+ ~t21~0 ~s1~0) (+ ~t22~0 ~s2~0))) (or (<= (+ ~t22~0 ~s2~0) (+ ~t21~0 ~s1~0)) (< 2147483647 (+ ~t21~0 ~s1~0)) (not (= ~i2~0 ~i1~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0))), 95850#(and (or (not (= ~x~0.base |ULTIMATE.start_main_~#t4~0#1.base|)) (< 2147483647 (+ ~t21~0 ~s1~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0)) (or (<= (+ ~t21~0 ~s1~0) (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4))) ~s2~0)) (< 2147483647 (+ ~t21~0 ~s1~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0)) (or (< 2147483647 (+ ~t21~0 ~s1~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0) (<= (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4))) ~s2~0) (+ ~t21~0 ~s1~0)))), 95846#(and (or (< 2147483647 (+ ~t21~0 ~s1~0)) (<= (+ ~t21~0 ~s1~0) ~s2~0) (not (= ~i2~0 ~i1~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0)) (or (< 2147483647 (+ ~t21~0 ~s1~0)) (not (= ~i2~0 ~i1~0)) (< ~s2~0 (+ ~t21~0 ~s1~0 1)) (< (+ ~t21~0 ~s1~0 2147483648) 0))), 95847#(and (or (< (+ ~t22~0 ~s2~0) (+ ~t21~0 ~s1~0 1)) (not (= ~i2~0 ~i1~0)) (< 2147483647 (+ ~t22~0 ~s2~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0)) (or (< (+ ~t22~0 ~s2~0 2147483648) 0) (< 2147483647 (+ ~t21~0 ~s1~0)) (not (= ~i2~0 ~i1~0)) (<= (+ ~t21~0 ~s1~0) (+ ~t22~0 ~s2~0))))] [2022-03-15 18:58:36,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-15 18:58:36,724 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:58:36,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-15 18:58:36,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=526, Unknown=4, NotChecked=0, Total=650 [2022-03-15 18:58:36,725 INFO L87 Difference]: Start difference. First operand 2822 states and 12974 transitions. Second operand has 15 states, 14 states have (on average 6.285714285714286) internal successors, (88), 14 states have internal predecessors, (88), 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) [2022-03-15 18:58:37,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:58:37,493 INFO L93 Difference]: Finished difference Result 4085 states and 18268 transitions. [2022-03-15 18:58:37,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 18:58:37,493 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 6.285714285714286) internal successors, (88), 14 states have internal predecessors, (88), 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 [2022-03-15 18:58:37,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:58:37,503 INFO L225 Difference]: With dead ends: 4085 [2022-03-15 18:58:37,503 INFO L226 Difference]: Without dead ends: 4062 [2022-03-15 18:58:37,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 152 SyntacticMatches, 63 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1445 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=221, Invalid=1257, Unknown=4, NotChecked=0, Total=1482 [2022-03-15 18:58:37,504 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 126 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 871 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-15 18:58:37,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 0 Invalid, 892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 871 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-15 18:58:37,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4062 states. [2022-03-15 18:58:37,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4062 to 2837. [2022-03-15 18:58:37,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2837 states, 2836 states have (on average 4.596967559943582) internal successors, (13037), 2836 states have internal predecessors, (13037), 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) [2022-03-15 18:58:37,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2837 states to 2837 states and 13037 transitions. [2022-03-15 18:58:37,571 INFO L78 Accepts]: Start accepts. Automaton has 2837 states and 13037 transitions. Word has length 28 [2022-03-15 18:58:37,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:58:37,571 INFO L470 AbstractCegarLoop]: Abstraction has 2837 states and 13037 transitions. [2022-03-15 18:58:37,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 6.285714285714286) internal successors, (88), 14 states have internal predecessors, (88), 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) [2022-03-15 18:58:37,571 INFO L276 IsEmpty]: Start isEmpty. Operand 2837 states and 13037 transitions. [2022-03-15 18:58:37,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-03-15 18:58:37,577 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:58:37,577 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 18:58:37,596 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-03-15 18:58:37,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:58:37,785 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 18:58:37,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:58:37,787 INFO L85 PathProgramCache]: Analyzing trace with hash -886764199, now seen corresponding path program 3 times [2022-03-15 18:58:37,787 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:58:37,787 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330345742] [2022-03-15 18:58:37,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:58:37,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:58:37,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:58:38,006 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:58:38,007 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:58:38,007 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330345742] [2022-03-15 18:58:38,007 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330345742] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 18:58:38,007 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60865853] [2022-03-15 18:58:38,007 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-15 18:58:38,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:58:38,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 18:58:38,008 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 18:58:38,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-03-15 18:58:38,151 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-03-15 18:58:38,151 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 18:58:38,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 55 conjunts are in the unsatisfiable core [2022-03-15 18:58:38,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 18:58:38,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 18:58:38,287 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-15 18:58:38,317 INFO L353 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-03-15 18:58:38,317 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 23 treesize of output 10 [2022-03-15 18:58:38,430 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 18:58:38,431 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 18:58:38,574 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 58 treesize of output 31 [2022-03-15 18:58:38,577 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 18 treesize of output 11 [2022-03-15 18:58:38,651 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 18:58:38,652 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60865853] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 18:58:38,652 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 18:58:38,652 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 7] total 24 [2022-03-15 18:58:38,652 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [409004502] [2022-03-15 18:58:38,652 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:58:38,655 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:58:38,698 INFO L252 McrAutomatonBuilder]: Finished intersection with 217 states and 582 transitions. [2022-03-15 18:58:38,698 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:58:48,540 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 5 new interpolants: [105826#(and (or (< 2147483647 (+ ~t21~0 ~s1~0)) (<= ~s2~0 (+ ~t21~0 ~s1~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0) (<= (+ ~i1~0 1) ~n~0)) (or (< (+ ~t21~0 ~s1~0) (+ ~s2~0 1)) (< 2147483647 (+ ~t21~0 ~s1~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0) (<= (+ ~i1~0 1) ~n~0))), 105828#(and (or (<= (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))) (+ ~t21~0 ~s1~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))) (<= ~n~0 ~i2~0) (<= (+ ~i1~0 1) ~n~0)) (or (< (+ ~t21~0 ~s1~0) (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 1)) (< 2147483647 (+ ~t21~0 ~s1~0)) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (<= ~n~0 ~i2~0) (<= (+ ~i1~0 1) ~n~0))), 105825#(and (or (<= (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))) ~s1~0) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))) (<= ~n~0 ~i2~0) (<= (+ ~i1~0 1) ~n~0)) (or (< ~s1~0 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 1)) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))) (<= ~n~0 ~i2~0) (<= (+ ~i1~0 1) ~n~0))), 105827#(and (or (< 2147483647 (+ ~t21~0 ~s1~0)) (< (+ ~t21~0 ~s1~0) (+ ~t12~0 ~s2~0 1)) (< (+ ~t12~0 ~s2~0 2147483648) 0) (<= (+ ~i1~0 1) ~n~0)) (or (< 2147483647 (+ ~t12~0 ~s2~0)) (<= (+ ~t12~0 ~s2~0) (+ ~t21~0 ~s1~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0) (<= (+ ~i1~0 1) ~n~0))), 105824#(and (or (< 2147483647 (+ ~t12~0 ~s2~0)) (<= (+ ~t12~0 ~s2~0) ~s1~0) (< (+ ~t12~0 ~s2~0 2147483648) 0) (<= (+ ~i1~0 1) ~n~0)) (or (< ~s1~0 (+ ~t12~0 ~s2~0 1)) (< 2147483647 (+ ~t12~0 ~s2~0)) (< (+ ~t12~0 ~s2~0 2147483648) 0) (<= (+ ~i1~0 1) ~n~0)))] [2022-03-15 18:58:48,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 18:58:48,541 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:58:48,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 18:58:48,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=798, Unknown=1, NotChecked=0, Total=930 [2022-03-15 18:58:48,541 INFO L87 Difference]: Start difference. First operand 2837 states and 13037 transitions. Second operand has 16 states, 15 states have (on average 5.4) internal successors, (81), 15 states have internal predecessors, (81), 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) [2022-03-15 18:58:50,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:58:50,388 INFO L93 Difference]: Finished difference Result 4018 states and 17956 transitions. [2022-03-15 18:58:50,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-15 18:58:50,388 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.4) internal successors, (81), 15 states have internal predecessors, (81), 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 [2022-03-15 18:58:50,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:58:50,399 INFO L225 Difference]: With dead ends: 4018 [2022-03-15 18:58:50,399 INFO L226 Difference]: Without dead ends: 3995 [2022-03-15 18:58:50,400 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 150 SyntacticMatches, 67 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 996 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=422, Invalid=2229, Unknown=1, NotChecked=0, Total=2652 [2022-03-15 18:58:50,400 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 334 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-15 18:58:50,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [334 Valid, 0 Invalid, 953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 852 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-15 18:58:50,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3995 states. [2022-03-15 18:58:50,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3995 to 2829. [2022-03-15 18:58:50,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2829 states, 2828 states have (on average 4.61067892503536) internal successors, (13039), 2828 states have internal predecessors, (13039), 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) [2022-03-15 18:58:50,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2829 states to 2829 states and 13039 transitions. [2022-03-15 18:58:50,468 INFO L78 Accepts]: Start accepts. Automaton has 2829 states and 13039 transitions. Word has length 28 [2022-03-15 18:58:50,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:58:50,468 INFO L470 AbstractCegarLoop]: Abstraction has 2829 states and 13039 transitions. [2022-03-15 18:58:50,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.4) internal successors, (81), 15 states have internal predecessors, (81), 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) [2022-03-15 18:58:50,468 INFO L276 IsEmpty]: Start isEmpty. Operand 2829 states and 13039 transitions. [2022-03-15 18:58:50,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-03-15 18:58:50,474 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:58:50,474 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 18:58:50,491 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-03-15 18:58:50,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-03-15 18:58:50,690 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 18:58:50,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:58:50,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1583990813, now seen corresponding path program 4 times [2022-03-15 18:58:50,692 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:58:50,692 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572411252] [2022-03-15 18:58:50,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:58:50,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:58:50,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:58:50,945 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:58:50,945 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:58:50,946 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572411252] [2022-03-15 18:58:50,946 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572411252] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 18:58:50,946 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1750040431] [2022-03-15 18:58:50,946 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-15 18:58:50,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:58:50,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 18:58:50,947 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 18:58:50,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-03-15 18:58:51,072 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-15 18:58:51,073 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 18:58:51,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 54 conjunts are in the unsatisfiable core [2022-03-15 18:58:51,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 18:58:51,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 18:58:51,243 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2022-03-15 18:58:51,273 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 18:58:51,273 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 29 treesize of output 29 [2022-03-15 18:58:51,403 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 18:58:51,403 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 18:58:51,563 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 58 treesize of output 31 [2022-03-15 18:58:51,565 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 18 treesize of output 11 [2022-03-15 18:58:51,650 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 18:58:51,650 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1750040431] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 18:58:51,650 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 18:58:51,650 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 7] total 26 [2022-03-15 18:58:51,650 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [195121267] [2022-03-15 18:58:51,650 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:58:51,653 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:58:51,696 INFO L252 McrAutomatonBuilder]: Finished intersection with 217 states and 582 transitions. [2022-03-15 18:58:51,696 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:58:58,157 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 7 new interpolants: [115739#(and (or (< 2147483647 (+ ~t21~0 ~s1~0)) (<= (+ ~t21~0 ~s1~0) ~s2~0) (< (+ ~t21~0 ~s1~0 2147483648) 0)) (or (< 2147483647 (+ ~t21~0 ~s1~0)) (< ~s2~0 (+ ~t21~0 ~s1~0 1)) (< (+ ~t21~0 ~s1~0 2147483648) 0))), 115743#(and (or (< 2147483647 (+ ~t21~0 ~s1~0)) (<= (+ ~t21~0 ~s1~0) (+ (select (select |#memory_int| ~x~0.base) (+ (* ~i2~0 4) 4)) ~s2~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0)) (or (= ~x~0.offset 0) (< 2147483647 (+ ~t21~0 ~s1~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0)) (or (< 2147483647 (+ ~t21~0 ~s1~0)) (<= (+ (select (select |#memory_int| ~x~0.base) (+ (* ~i2~0 4) 4)) ~s2~0) (+ ~t21~0 ~s1~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0))), 115740#(and (or (< 2147483647 (+ ~t12~0 ~s2~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0) (< (+ ~t12~0 ~s2~0) (+ ~t21~0 ~s1~0 1))) (or (< 2147483647 (+ ~t21~0 ~s1~0)) (<= (+ ~t21~0 ~s1~0) (+ ~t12~0 ~s2~0)) (< (+ ~t12~0 ~s2~0 2147483648) 0))), 115737#(and (or (<= ~s1~0 (+ ~t12~0 ~s2~0)) (< 2147483647 (+ ~t12~0 ~s2~0)) (< (+ ~t12~0 ~s2~0 2147483648) 0)) (or (< (+ ~t12~0 ~s2~0) (+ ~s1~0 1)) (< 2147483647 (+ ~t12~0 ~s2~0)) (< (+ ~t12~0 ~s2~0 2147483648) 0))), 115738#(and (or (<= ~s1~0 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))))) (or (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))) (+ ~s1~0 1)))), 115742#(and (or (< 2147483647 (+ ~t21~0 ~s1~0)) (<= (+ ~t21~0 ~s1~0) (+ ~t12~0 ~s2~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0)) (or (< 2147483647 (+ ~t21~0 ~s1~0)) (<= (+ ~t12~0 ~s2~0) (+ ~t21~0 ~s1~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0))), 115741#(and (or (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))) (+ ~t21~0 ~s1~0 1)) (< (+ ~t21~0 ~s1~0 2147483648) 0) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))))) (or (< 2147483647 (+ ~t21~0 ~s1~0)) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (<= (+ ~t21~0 ~s1~0) (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))))))] [2022-03-15 18:58:58,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-15 18:58:58,157 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:58:58,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-15 18:58:58,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=1062, Unknown=3, NotChecked=0, Total=1190 [2022-03-15 18:58:58,158 INFO L87 Difference]: Start difference. First operand 2829 states and 13039 transitions. Second operand has 20 states, 19 states have (on average 4.7368421052631575) internal successors, (90), 19 states have internal predecessors, (90), 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) [2022-03-15 18:58:58,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:58:58,965 INFO L93 Difference]: Finished difference Result 3861 states and 17327 transitions. [2022-03-15 18:58:58,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-15 18:58:58,965 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 4.7368421052631575) internal successors, (90), 19 states have internal predecessors, (90), 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 [2022-03-15 18:58:58,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:58:58,974 INFO L225 Difference]: With dead ends: 3861 [2022-03-15 18:58:58,975 INFO L226 Difference]: Without dead ends: 3844 [2022-03-15 18:58:58,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 212 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=177, Invalid=1542, Unknown=3, NotChecked=0, Total=1722 [2022-03-15 18:58:58,976 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 161 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 1375 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-15 18:58:58,976 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 0 Invalid, 1407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1375 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-15 18:58:58,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3844 states. [2022-03-15 18:58:59,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3844 to 2823. [2022-03-15 18:58:59,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2823 states, 2822 states have (on average 4.611977321048902) internal successors, (13015), 2822 states have internal predecessors, (13015), 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) [2022-03-15 18:58:59,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2823 states to 2823 states and 13015 transitions. [2022-03-15 18:58:59,028 INFO L78 Accepts]: Start accepts. Automaton has 2823 states and 13015 transitions. Word has length 28 [2022-03-15 18:58:59,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:58:59,028 INFO L470 AbstractCegarLoop]: Abstraction has 2823 states and 13015 transitions. [2022-03-15 18:58:59,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 4.7368421052631575) internal successors, (90), 19 states have internal predecessors, (90), 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) [2022-03-15 18:58:59,028 INFO L276 IsEmpty]: Start isEmpty. Operand 2823 states and 13015 transitions. [2022-03-15 18:58:59,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-03-15 18:58:59,034 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:58:59,034 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 18:58:59,050 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-03-15 18:58:59,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:58:59,234 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 18:58:59,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:58:59,235 INFO L85 PathProgramCache]: Analyzing trace with hash 555073687, now seen corresponding path program 5 times [2022-03-15 18:58:59,235 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:58:59,235 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002873832] [2022-03-15 18:58:59,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:58:59,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:58:59,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:58:59,349 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 18:58:59,349 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:58:59,349 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002873832] [2022-03-15 18:58:59,349 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002873832] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 18:58:59,349 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755364580] [2022-03-15 18:58:59,349 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-15 18:58:59,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:58:59,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 18:58:59,351 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 18:58:59,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-03-15 18:58:59,466 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-03-15 18:58:59,466 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 18:58:59,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 49 conjunts are in the unsatisfiable core [2022-03-15 18:58:59,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 18:58:59,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 18:58:59,549 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-15 18:58:59,575 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 18:58:59,575 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 23 treesize of output 23 [2022-03-15 18:58:59,671 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 18:58:59,671 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 18:58:59,771 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1187 (Array Int Int))) (= (+ c_~t21~0 c_~s1~0) (+ c_~s2~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1187) c_~x~0.base) (+ c_~x~0.offset (* c_~i1~0 4)))))) is different from false [2022-03-15 18:58:59,774 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 54 treesize of output 30 [2022-03-15 18:58:59,776 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 17 treesize of output 11 [2022-03-15 18:58:59,841 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 18:58:59,841 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [755364580] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 18:58:59,841 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 18:58:59,841 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 7] total 22 [2022-03-15 18:58:59,841 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [169019458] [2022-03-15 18:58:59,841 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:58:59,844 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:58:59,882 INFO L252 McrAutomatonBuilder]: Finished intersection with 191 states and 495 transitions. [2022-03-15 18:58:59,882 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:59:04,191 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 5 new interpolants: [125452#(and (or (< ~s1~0 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 1)) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))))) (or (<= (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))) ~s1~0) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))))), 125453#(and (or (< 2147483647 (+ ~t21~0 ~s1~0)) (<= ~s2~0 (+ ~t21~0 ~s1~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0)) (or (< (+ ~t21~0 ~s1~0) (+ ~s2~0 1)) (< 2147483647 (+ ~t21~0 ~s1~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0))), 125455#(and (or (< 2147483647 (+ ~t12~0 ~s2~0)) (<= (+ ~t21~0 ~s1~0) (+ ~t12~0 ~s2~0)) (< (+ ~t12~0 ~s2~0 2147483648) 0)) (or (< 2147483647 (+ ~t12~0 ~s2~0)) (<= (+ ~t12~0 ~s2~0) (+ ~t21~0 ~s1~0)) (< (+ ~t12~0 ~s2~0 2147483648) 0))), 125454#(and (or (< 2147483647 (+ ~t12~0 ~s2~0)) (<= (+ ~t12~0 ~s2~0) (+ ~t21~0 ~s1~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0)) (or (< 2147483647 (+ ~t21~0 ~s1~0)) (< (+ ~t21~0 ~s1~0) (+ ~t12~0 ~s2~0 1)) (< (+ ~t12~0 ~s2~0 2147483648) 0))), 125451#(and (or (< 2147483647 (+ ~t12~0 ~s2~0)) (<= (+ ~t12~0 ~s2~0) ~s1~0) (< (+ ~t12~0 ~s2~0 2147483648) 0)) (or (< ~s1~0 (+ ~t12~0 ~s2~0 1)) (< 2147483647 (+ ~t12~0 ~s2~0)) (< (+ ~t12~0 ~s2~0 2147483648) 0)))] [2022-03-15 18:59:04,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 18:59:04,192 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:59:04,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 18:59:04,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=644, Unknown=1, NotChecked=52, Total=812 [2022-03-15 18:59:04,192 INFO L87 Difference]: Start difference. First operand 2823 states and 13015 transitions. Second operand has 14 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 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) [2022-03-15 18:59:04,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:59:04,749 INFO L93 Difference]: Finished difference Result 3909 states and 17509 transitions. [2022-03-15 18:59:04,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-15 18:59:04,750 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 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 [2022-03-15 18:59:04,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:59:04,759 INFO L225 Difference]: With dead ends: 3909 [2022-03-15 18:59:04,759 INFO L226 Difference]: Without dead ends: 3886 [2022-03-15 18:59:04,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 188 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=183, Invalid=1080, Unknown=1, NotChecked=68, Total=1332 [2022-03-15 18:59:04,760 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 133 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 937 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-15 18:59:04,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 0 Invalid, 959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 937 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-15 18:59:04,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3886 states. [2022-03-15 18:59:04,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3886 to 2833. [2022-03-15 18:59:04,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2833 states, 2832 states have (on average 4.607697740112994) internal successors, (13049), 2832 states have internal predecessors, (13049), 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) [2022-03-15 18:59:04,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2833 states to 2833 states and 13049 transitions. [2022-03-15 18:59:04,815 INFO L78 Accepts]: Start accepts. Automaton has 2833 states and 13049 transitions. Word has length 28 [2022-03-15 18:59:04,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:59:04,816 INFO L470 AbstractCegarLoop]: Abstraction has 2833 states and 13049 transitions. [2022-03-15 18:59:04,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 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) [2022-03-15 18:59:04,816 INFO L276 IsEmpty]: Start isEmpty. Operand 2833 states and 13049 transitions. [2022-03-15 18:59:04,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-03-15 18:59:04,821 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:59:04,821 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 18:59:04,840 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-03-15 18:59:05,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:59:05,036 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 18:59:05,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:59:05,037 INFO L85 PathProgramCache]: Analyzing trace with hash 300931289, now seen corresponding path program 6 times [2022-03-15 18:59:05,037 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:59:05,037 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791761018] [2022-03-15 18:59:05,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:59:05,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:59:05,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:59:05,299 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:59:05,299 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:59:05,299 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791761018] [2022-03-15 18:59:05,299 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791761018] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 18:59:05,299 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [627448670] [2022-03-15 18:59:05,299 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-15 18:59:05,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:59:05,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 18:59:05,300 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 18:59:05,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-03-15 18:59:05,422 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-03-15 18:59:05,422 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 18:59:05,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 55 conjunts are in the unsatisfiable core [2022-03-15 18:59:05,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 18:59:05,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 18:59:05,565 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-15 18:59:05,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 18:59:05,613 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-15 18:59:05,645 INFO L353 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-03-15 18:59:05,645 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 23 treesize of output 10 [2022-03-15 18:59:05,765 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 18:59:05,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 18:59:05,936 INFO L353 Elim1Store]: treesize reduction 14, result has 22.2 percent of original size [2022-03-15 18:59:05,937 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 258 treesize of output 172 [2022-03-15 18:59:05,939 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 168 treesize of output 140 [2022-03-15 18:59:05,943 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 140 treesize of output 126 [2022-03-15 18:59:06,069 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 18:59:06,069 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [627448670] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 18:59:06,069 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 18:59:06,069 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 25 [2022-03-15 18:59:06,069 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [580729294] [2022-03-15 18:59:06,069 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:59:06,072 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:59:06,116 INFO L252 McrAutomatonBuilder]: Finished intersection with 219 states and 587 transitions. [2022-03-15 18:59:06,116 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:59:17,897 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 5 new interpolants: [135237#(and (or (<= (+ ~n~0 1) ~i1~0) (< ~s1~0 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 1)) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))) (<= ~n~0 ~i2~0) (<= (+ ~i1~0 1) ~n~0)) (or (<= (+ ~n~0 1) ~i1~0) (<= (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))) ~s1~0) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))) (<= ~n~0 ~i2~0) (<= (+ ~i1~0 1) ~n~0))), 135238#(and (or (< 2147483647 (+ ~t21~0 ~s1~0)) (<= (+ ~n~0 1) ~i1~0) (<= ~s2~0 (+ ~t21~0 ~s1~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0) (<= (+ ~i1~0 1) ~n~0)) (or (< (+ ~t21~0 ~s1~0) (+ ~s2~0 1)) (< 2147483647 (+ ~t21~0 ~s1~0)) (<= (+ ~n~0 1) ~i1~0) (< (+ ~t21~0 ~s1~0 2147483648) 0) (<= (+ ~i1~0 1) ~n~0))), 135239#(and (or (< 2147483647 (+ ~t21~0 ~s1~0)) (<= (+ ~n~0 1) ~i1~0) (< (+ ~t21~0 ~s1~0) (+ ~t12~0 ~s2~0 1)) (< (+ ~t12~0 ~s2~0 2147483648) 0) (<= (+ ~i1~0 1) ~n~0)) (or (<= (+ ~n~0 1) ~i1~0) (< 2147483647 (+ ~t12~0 ~s2~0)) (<= (+ ~t12~0 ~s2~0) (+ ~t21~0 ~s1~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0) (<= (+ ~i1~0 1) ~n~0))), 135240#(and (or (< (+ ~t21~0 ~s1~0) (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 1)) (< 2147483647 (+ ~t21~0 ~s1~0)) (<= (+ ~n~0 1) ~i1~0) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (<= ~n~0 ~i2~0) (<= (+ ~i1~0 1) ~n~0)) (or (<= (+ ~n~0 1) ~i1~0) (<= (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))) (+ ~t21~0 ~s1~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))) (<= ~n~0 ~i2~0) (<= (+ ~i1~0 1) ~n~0))), 135236#(and (or (< ~s1~0 (+ ~t12~0 ~s2~0 1)) (<= (+ ~n~0 1) ~i1~0) (< 2147483647 (+ ~t12~0 ~s2~0)) (< (+ ~t12~0 ~s2~0 2147483648) 0) (<= (+ ~i1~0 1) ~n~0)) (or (<= (+ ~n~0 1) ~i1~0) (< 2147483647 (+ ~t12~0 ~s2~0)) (<= (+ ~t12~0 ~s2~0) ~s1~0) (< (+ ~t12~0 ~s2~0 2147483648) 0) (<= (+ ~i1~0 1) ~n~0)))] [2022-03-15 18:59:17,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 18:59:17,897 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:59:17,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 18:59:17,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=851, Unknown=3, NotChecked=0, Total=992 [2022-03-15 18:59:17,897 INFO L87 Difference]: Start difference. First operand 2833 states and 13049 transitions. Second operand has 16 states, 15 states have (on average 5.333333333333333) internal successors, (80), 15 states have internal predecessors, (80), 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) [2022-03-15 18:59:20,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:59:20,173 INFO L93 Difference]: Finished difference Result 5866 states and 26413 transitions. [2022-03-15 18:59:20,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 18:59:20,173 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.333333333333333) internal successors, (80), 15 states have internal predecessors, (80), 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 [2022-03-15 18:59:20,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:59:20,188 INFO L225 Difference]: With dead ends: 5866 [2022-03-15 18:59:20,188 INFO L226 Difference]: Without dead ends: 5843 [2022-03-15 18:59:20,189 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 156 SyntacticMatches, 62 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1138 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=434, Invalid=2533, Unknown=3, NotChecked=0, Total=2970 [2022-03-15 18:59:20,190 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 231 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 1340 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 1340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 18:59:20,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [231 Valid, 0 Invalid, 1418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 1340 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 18:59:20,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5843 states. [2022-03-15 18:59:20,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5843 to 2865. [2022-03-15 18:59:20,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2865 states, 2864 states have (on average 4.617667597765363) internal successors, (13225), 2864 states have internal predecessors, (13225), 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) [2022-03-15 18:59:20,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2865 states to 2865 states and 13225 transitions. [2022-03-15 18:59:20,263 INFO L78 Accepts]: Start accepts. Automaton has 2865 states and 13225 transitions. Word has length 28 [2022-03-15 18:59:20,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:59:20,264 INFO L470 AbstractCegarLoop]: Abstraction has 2865 states and 13225 transitions. [2022-03-15 18:59:20,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.333333333333333) internal successors, (80), 15 states have internal predecessors, (80), 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) [2022-03-15 18:59:20,264 INFO L276 IsEmpty]: Start isEmpty. Operand 2865 states and 13225 transitions. [2022-03-15 18:59:20,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-03-15 18:59:20,270 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:59:20,270 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 18:59:20,289 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-03-15 18:59:20,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:59:20,479 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 18:59:20,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:59:20,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1647647323, now seen corresponding path program 4 times [2022-03-15 18:59:20,480 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:59:20,480 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81985965] [2022-03-15 18:59:20,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:59:20,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:59:20,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:59:20,640 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 18:59:20,640 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:59:20,640 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81985965] [2022-03-15 18:59:20,640 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81985965] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 18:59:20,640 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [890077872] [2022-03-15 18:59:20,640 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-15 18:59:20,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:59:20,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 18:59:20,642 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 18:59:20,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-03-15 18:59:20,764 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-15 18:59:20,764 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 18:59:20,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 64 conjunts are in the unsatisfiable core [2022-03-15 18:59:20,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 18:59:20,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 18:59:20,963 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-15 18:59:21,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 18:59:21,014 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-15 18:59:21,118 INFO L353 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-03-15 18:59:21,118 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 25 treesize of output 12 [2022-03-15 18:59:21,235 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:59:21,235 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 18:59:21,438 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 258 treesize of output 168 [2022-03-15 18:59:21,444 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 168 treesize of output 140 [2022-03-15 18:59:21,446 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 140 treesize of output 126 [2022-03-15 18:59:21,639 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:59:21,639 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [890077872] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 18:59:21,639 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 18:59:21,639 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10, 10] total 27 [2022-03-15 18:59:21,640 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1889734590] [2022-03-15 18:59:21,640 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:59:21,643 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:59:21,705 INFO L252 McrAutomatonBuilder]: Finished intersection with 217 states and 576 transitions. [2022-03-15 18:59:21,705 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:59:32,938 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 7 new interpolants: [147078#(and (or (<= (+ ~i1~0 1) ~i2~0) (< 2147483647 (+ ~t21~0 ~s1~0)) (<= (+ ~i2~0 1) ~i1~0) (< (+ ~t21~0 ~s1~0 2147483648) 0) (<= (+ ~t21~0 ~s1~0) (+ ~t22~0 ~s2~0))) (or (<= (+ ~i1~0 1) ~i2~0) (<= (+ ~t22~0 ~s2~0) (+ ~t21~0 ~s1~0)) (< 2147483647 (+ ~t21~0 ~s1~0)) (<= (+ ~i2~0 1) ~i1~0) (< (+ ~t21~0 ~s1~0 2147483648) 0))), 147079#(and (or (<= (+ 2 ~i2~0) ~i1~0) (< 2147483647 (+ ~t21~0 ~s1~0)) (<= ~i1~0 ~i2~0) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (<= (+ ~t21~0 ~s1~0) (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))))) (or (<= (+ 2 ~i2~0) ~i1~0) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))) (+ ~t21~0 ~s1~0 1)) (<= ~i1~0 ~i2~0) (< (+ ~t21~0 ~s1~0 2147483648) 0) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))))), 147074#(and (or (< (+ ~t22~0 ~s2~0 2147483648) 0) (<= (+ ~i1~0 1) ~i2~0) (< 2147483647 (+ ~t22~0 ~s2~0)) (<= (+ ~i2~0 1) ~i1~0) (<= ~s1~0 (+ ~t22~0 ~s2~0))) (or (< (+ ~t22~0 ~s2~0 2147483648) 0) (<= (+ ~i1~0 1) ~i2~0) (< (+ ~t22~0 ~s2~0) (+ ~s1~0 1)) (< 2147483647 (+ ~t22~0 ~s2~0)) (<= (+ ~i2~0 1) ~i1~0))), 147077#(and (or (< (+ ~t22~0 ~s2~0 2147483648) 0) (<= (+ ~i1~0 1) ~i2~0) (< 2147483647 (+ ~t21~0 ~s1~0)) (<= (+ ~i2~0 1) ~i1~0) (<= (+ ~t21~0 ~s1~0) (+ ~t22~0 ~s2~0))) (or (<= (+ ~i1~0 1) ~i2~0) (< (+ ~t22~0 ~s2~0) (+ ~t21~0 ~s1~0 1)) (< 2147483647 (+ ~t22~0 ~s2~0)) (<= (+ ~i2~0 1) ~i1~0) (< (+ ~t21~0 ~s1~0 2147483648) 0))), 147075#(and (or (<= (+ 2 ~i2~0) ~i1~0) (<= ~i1~0 ~i2~0) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))) (+ ~s1~0 1))) (or (<= (+ 2 ~i2~0) ~i1~0) (<= ~s1~0 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))) (<= ~i1~0 ~i2~0) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))))), 147080#(and (or (not (= ~x~0.base |ULTIMATE.start_main_~#t4~0#1.base|)) (< 2147483647 (+ ~t21~0 ~s1~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0)) (or (<= (+ ~t21~0 ~s1~0) (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4))) ~s2~0)) (< 2147483647 (+ ~t21~0 ~s1~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0)) (or (= ~x~0.offset 0) (< 2147483647 (+ ~t21~0 ~s1~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0)) (or (< 2147483647 (+ ~t21~0 ~s1~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0) (<= (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4))) ~s2~0) (+ ~t21~0 ~s1~0)))), 147076#(and (or (<= (+ ~i1~0 1) ~i2~0) (< 2147483647 (+ ~t21~0 ~s1~0)) (<= (+ ~i2~0 1) ~i1~0) (< ~s2~0 (+ ~t21~0 ~s1~0 1)) (< (+ ~t21~0 ~s1~0 2147483648) 0)) (or (<= (+ ~i1~0 1) ~i2~0) (< 2147483647 (+ ~t21~0 ~s1~0)) (<= (+ ~t21~0 ~s1~0) ~s2~0) (<= (+ ~i2~0 1) ~i1~0) (< (+ ~t21~0 ~s1~0 2147483648) 0)))] [2022-03-15 18:59:32,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 18:59:32,938 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:59:32,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 18:59:32,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=1073, Unknown=4, NotChecked=0, Total=1260 [2022-03-15 18:59:32,939 INFO L87 Difference]: Start difference. First operand 2865 states and 13225 transitions. Second operand has 16 states, 15 states have (on average 5.933333333333334) internal successors, (89), 15 states have internal predecessors, (89), 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) [2022-03-15 18:59:33,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:59:33,949 INFO L93 Difference]: Finished difference Result 4051 states and 18126 transitions. [2022-03-15 18:59:33,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 18:59:33,950 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.933333333333334) internal successors, (89), 15 states have internal predecessors, (89), 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 [2022-03-15 18:59:33,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:59:33,960 INFO L225 Difference]: With dead ends: 4051 [2022-03-15 18:59:33,960 INFO L226 Difference]: Without dead ends: 4028 [2022-03-15 18:59:33,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 137 SyntacticMatches, 67 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1676 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=294, Invalid=2054, Unknown=4, NotChecked=0, Total=2352 [2022-03-15 18:59:33,961 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 118 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 972 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-15 18:59:33,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 0 Invalid, 997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 972 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-15 18:59:33,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4028 states. [2022-03-15 18:59:34,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4028 to 2849. [2022-03-15 18:59:34,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2849 states, 2848 states have (on average 4.607092696629214) internal successors, (13121), 2848 states have internal predecessors, (13121), 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) [2022-03-15 18:59:34,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2849 states to 2849 states and 13121 transitions. [2022-03-15 18:59:34,020 INFO L78 Accepts]: Start accepts. Automaton has 2849 states and 13121 transitions. Word has length 28 [2022-03-15 18:59:34,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:59:34,020 INFO L470 AbstractCegarLoop]: Abstraction has 2849 states and 13121 transitions. [2022-03-15 18:59:34,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.933333333333334) internal successors, (89), 15 states have internal predecessors, (89), 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) [2022-03-15 18:59:34,020 INFO L276 IsEmpty]: Start isEmpty. Operand 2849 states and 13121 transitions. [2022-03-15 18:59:34,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-03-15 18:59:34,026 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:59:34,027 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 18:59:34,046 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-03-15 18:59:34,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:59:34,239 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 18:59:34,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:59:34,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1523280995, now seen corresponding path program 7 times [2022-03-15 18:59:34,240 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:59:34,241 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499924149] [2022-03-15 18:59:34,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:59:34,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:59:34,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:59:34,409 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 18:59:34,409 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:59:34,409 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499924149] [2022-03-15 18:59:34,410 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499924149] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 18:59:34,410 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1457686881] [2022-03-15 18:59:34,410 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-15 18:59:34,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:59:34,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 18:59:34,411 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 18:59:34,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-03-15 18:59:34,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:59:34,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 55 conjunts are in the unsatisfiable core [2022-03-15 18:59:34,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 18:59:34,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 18:59:34,705 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-15 18:59:34,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 18:59:34,773 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2022-03-15 18:59:34,802 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 18:59:34,802 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 25 treesize of output 25 [2022-03-15 18:59:34,937 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:59:34,937 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 18:59:35,160 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 242 treesize of output 162 [2022-03-15 18:59:35,162 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 162 treesize of output 138 [2022-03-15 18:59:35,164 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 138 treesize of output 126 [2022-03-15 18:59:35,328 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:59:35,328 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1457686881] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 18:59:35,328 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 18:59:35,328 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10, 10] total 27 [2022-03-15 18:59:35,329 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [655914709] [2022-03-15 18:59:35,329 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:59:35,332 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:59:35,375 INFO L252 McrAutomatonBuilder]: Finished intersection with 219 states and 587 transitions. [2022-03-15 18:59:35,375 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:59:42,022 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 7 new interpolants: [157050#(and (or (< 2147483647 (+ ~t12~0 ~s2~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0) (< (+ ~t12~0 ~s2~0) (+ ~t21~0 ~s1~0 1))) (or (< 2147483647 (+ ~t21~0 ~s1~0)) (<= (+ ~t21~0 ~s1~0) (+ ~t12~0 ~s2~0)) (< (+ ~t12~0 ~s2~0 2147483648) 0))), 157047#(and (or (<= ~s1~0 (+ ~t12~0 ~s2~0)) (< 2147483647 (+ ~t12~0 ~s2~0)) (< (+ ~t12~0 ~s2~0 2147483648) 0)) (or (< (+ ~t12~0 ~s2~0) (+ ~s1~0 1)) (< 2147483647 (+ ~t12~0 ~s2~0)) (< (+ ~t12~0 ~s2~0 2147483648) 0))), 157049#(and (or (< 2147483647 (+ ~t21~0 ~s1~0)) (<= (+ ~t21~0 ~s1~0) ~s2~0) (< (+ ~t21~0 ~s1~0 2147483648) 0)) (or (< 2147483647 (+ ~t21~0 ~s1~0)) (< ~s2~0 (+ ~t21~0 ~s1~0 1)) (< (+ ~t21~0 ~s1~0 2147483648) 0))), 157052#(and (or (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))) (+ ~t21~0 ~s1~0 1)) (< (+ ~t21~0 ~s1~0 2147483648) 0) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))))) (or (< 2147483647 (+ ~t21~0 ~s1~0)) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (<= (+ ~t21~0 ~s1~0) (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))))), 157051#(and (or (< 2147483647 (+ ~t21~0 ~s1~0)) (<= (+ ~t21~0 ~s1~0) (+ ~t12~0 ~s2~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0)) (or (< 2147483647 (+ ~t21~0 ~s1~0)) (<= (+ ~t12~0 ~s2~0) (+ ~t21~0 ~s1~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0))), 157048#(and (or (<= ~s1~0 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))))) (or (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)) 2147483648) 0) (< 2147483647 (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4)))) (< (+ ~s2~0 (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i2~0 4) 4))) (+ ~s1~0 1)))), 157053#(and (or (< 2147483647 (+ ~t21~0 ~s1~0)) (not (= ~x~0.base |ULTIMATE.start_main_~#t3~0#1.base|)) (< (+ ~t21~0 ~s1~0 2147483648) 0)) (or (<= (+ ~t21~0 ~s1~0) (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4))) ~s2~0)) (< 2147483647 (+ ~t21~0 ~s1~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0)) (or (= ~x~0.offset 0) (< 2147483647 (+ ~t21~0 ~s1~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0)) (or (< 2147483647 (+ ~t21~0 ~s1~0)) (< (+ ~t21~0 ~s1~0 2147483648) 0) (<= (+ (select (select |#memory_int| ~x~0.base) (+ ~x~0.offset (* ~i1~0 4))) ~s2~0) (+ ~t21~0 ~s1~0))) (or (< 2147483647 (+ ~t21~0 ~s1~0)) (= (+ ~x~0.offset (* ~i1~0 4)) (+ (* ~i2~0 4) 4)) (< (+ ~t21~0 ~s1~0 2147483648) 0)))] [2022-03-15 18:59:42,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 18:59:42,023 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:59:42,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 18:59:42,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=1116, Unknown=9, NotChecked=0, Total=1260 [2022-03-15 18:59:42,023 INFO L87 Difference]: Start difference. First operand 2849 states and 13121 transitions. Second operand has 16 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 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) [2022-03-15 18:59:42,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:59:42,855 INFO L93 Difference]: Finished difference Result 4017 states and 17992 transitions. [2022-03-15 18:59:42,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-15 18:59:42,855 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 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 [2022-03-15 18:59:42,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:59:42,865 INFO L225 Difference]: With dead ends: 4017 [2022-03-15 18:59:42,865 INFO L226 Difference]: Without dead ends: 3994 [2022-03-15 18:59:42,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 208 SyntacticMatches, 3 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=228, Invalid=2019, Unknown=9, NotChecked=0, Total=2256 [2022-03-15 18:59:42,866 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 165 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 931 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 931 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-15 18:59:42,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 0 Invalid, 965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 931 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-15 18:59:42,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3994 states. [2022-03-15 18:59:42,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3994 to 2855. [2022-03-15 18:59:42,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2855 states, 2854 states have (on average 4.614926419060967) internal successors, (13171), 2854 states have internal predecessors, (13171), 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) [2022-03-15 18:59:42,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2855 states to 2855 states and 13171 transitions. [2022-03-15 18:59:42,921 INFO L78 Accepts]: Start accepts. Automaton has 2855 states and 13171 transitions. Word has length 28 [2022-03-15 18:59:42,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:59:42,921 INFO L470 AbstractCegarLoop]: Abstraction has 2855 states and 13171 transitions. [2022-03-15 18:59:42,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 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) [2022-03-15 18:59:42,921 INFO L276 IsEmpty]: Start isEmpty. Operand 2855 states and 13171 transitions. [2022-03-15 18:59:42,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-03-15 18:59:42,927 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:59:42,927 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 18:59:42,943 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-03-15 18:59:43,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-03-15 18:59:43,128 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 18:59:43,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:59:43,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1074963719, now seen corresponding path program 5 times [2022-03-15 18:59:43,129 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:59:43,129 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262259735] [2022-03-15 18:59:43,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:59:43,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:59:43,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:59:43,301 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 18:59:43,302 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:59:43,302 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262259735] [2022-03-15 18:59:43,302 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262259735] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 18:59:43,302 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [178724056] [2022-03-15 18:59:43,302 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-15 18:59:43,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:59:43,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 18:59:43,303 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 18:59:43,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-03-15 18:59:43,438 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-15 18:59:43,438 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 18:59:43,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 65 conjunts are in the unsatisfiable core [2022-03-15 18:59:43,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 18:59:43,495 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-15 18:59:43,532 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-15 18:59:43,576 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-15 18:59:43,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 18:59:43,699 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2022-03-15 18:59:43,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 18:59:43,738 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2022-03-15 18:59:43,786 INFO L353 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-03-15 18:59:43,786 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 25 treesize of output 12 [2022-03-15 18:59:43,866 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:59:43,867 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 18:59:44,156 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1455 (Array Int Int)) (v_ArrVal_1454 (Array Int Int)) (v_ArrVal_1453 (Array Int Int)) (v_ArrVal_1452 (Array Int Int))) (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_1452) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1453)) (.cse1 (+ 4 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|))) (= (select (select (store (store .cse0 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1454) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_1455) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) .cse1) (select (select .cse0 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) .cse1)))) is different from false [2022-03-15 18:59:44,162 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 18:59:44,162 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 46 [2022-03-15 18:59:44,165 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 10454 treesize of output 9590 [2022-03-15 18:59:44,418 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 9366 treesize of output 8790 [2022-03-15 18:59:44,443 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 8790 treesize of output 8278 [2022-03-15 18:59:44,471 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 8278 treesize of output 7254 [2022-03-15 18:59:44,497 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 7254 treesize of output 6230 Received shutdown request... [2022-03-15 19:09:41,362 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-03-15 19:09:41,381 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-03-15 19:09:41,395 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-15 19:09:41,404 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-15 19:09:41,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-03-15 19:09:41,563 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was analyzing trace of length 29 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. [2022-03-15 19:09:41,564 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-03-15 19:09:41,564 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-03-15 19:09:41,565 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-03-15 19:09:41,565 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-03-15 19:09:41,566 INFO L732 BasicCegarLoop]: Path program histogram: [7, 5, 4, 2, 2, 2, 1, 1] [2022-03-15 19:09:41,568 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-15 19:09:41,568 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-15 19:09:41,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 07:09:41 BasicIcfg [2022-03-15 19:09:41,569 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-15 19:09:41,569 INFO L158 Benchmark]: Toolchain (without parser) took 811646.95ms. Allocated memory was 176.2MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 124.8MB in the beginning and 268.2MB in the end (delta: -143.4MB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. [2022-03-15 19:09:41,569 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 176.2MB. Free memory is still 141.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 19:09:41,570 INFO L158 Benchmark]: CACSL2BoogieTranslator took 287.37ms. Allocated memory was 176.2MB in the beginning and 229.6MB in the end (delta: 53.5MB). Free memory was 124.6MB in the beginning and 204.7MB in the end (delta: -80.1MB). Peak memory consumption was 9.5MB. Max. memory is 8.0GB. [2022-03-15 19:09:41,570 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.60ms. Allocated memory is still 229.6MB. Free memory was 204.7MB in the beginning and 202.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 19:09:41,570 INFO L158 Benchmark]: Boogie Preprocessor took 26.23ms. Allocated memory is still 229.6MB. Free memory was 202.1MB in the beginning and 200.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 19:09:41,570 INFO L158 Benchmark]: RCFGBuilder took 687.60ms. Allocated memory is still 229.6MB. Free memory was 200.0MB in the beginning and 161.2MB in the end (delta: 38.8MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. [2022-03-15 19:09:41,570 INFO L158 Benchmark]: TraceAbstraction took 810597.52ms. Allocated memory was 229.6MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 160.4MB in the beginning and 268.2MB in the end (delta: -107.8MB). Peak memory consumption was 1.0GB. Max. memory is 8.0GB. [2022-03-15 19:09:41,571 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 176.2MB. Free memory is still 141.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 287.37ms. Allocated memory was 176.2MB in the beginning and 229.6MB in the end (delta: 53.5MB). Free memory was 124.6MB in the beginning and 204.7MB in the end (delta: -80.1MB). Peak memory consumption was 9.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 41.60ms. Allocated memory is still 229.6MB. Free memory was 204.7MB in the beginning and 202.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 26.23ms. Allocated memory is still 229.6MB. Free memory was 202.1MB in the beginning and 200.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 687.60ms. Allocated memory is still 229.6MB. Free memory was 200.0MB in the beginning and 161.2MB in the end (delta: 38.8MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. * TraceAbstraction took 810597.52ms. Allocated memory was 229.6MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 160.4MB in the beginning and 268.2MB in the end (delta: -107.8MB). Peak memory consumption was 1.0GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.1s, 204 PlacesBefore, 44 PlacesAfterwards, 206 TransitionsBefore, 36 TransitionsAfterwards, 2160 CoEnabledTransitionPairs, 8 FixpointIterations, 119 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 27 TrivialYvCompositions, 14 ConcurrentYvCompositions, 10 ChoiceCompositions, 201 TotalNumberOfCompositions, 4030 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3006, positive: 2898, positive conditional: 0, positive unconditional: 2898, negative: 108, negative conditional: 0, negative unconditional: 108, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1275, positive: 1259, positive conditional: 0, positive unconditional: 1259, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3006, positive: 1639, positive conditional: 0, positive unconditional: 1639, negative: 92, negative conditional: 0, negative unconditional: 92, unknown: 1275, unknown conditional: 0, unknown unconditional: 1275] , Statistics on independence cache: Total cache size (in pairs): 119, Positive cache size: 112, Positive conditional cache size: 0, Positive unconditional cache size: 112, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - 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 - TimeoutResultAtElement [Line: 136]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 29 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 128]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 29 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 126]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 29 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 129]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 29 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 29 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 228 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 810.5s, OverallIterations: 24, TraceHistogramMax: 2, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.1s, AutomataDifference: 30.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3688 SdHoareTripleChecker+Valid, 13.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3688 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 11.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9526 mSDsCounter, 1078 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 24646 IncrementalHoareTripleChecker+Invalid, 25724 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1078 mSolverCounterUnsat, 0 mSDtfsCounter, 24646 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5152 GetRequests, 3604 SyntacticMatches, 679 SemanticMatches, 869 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 20223 ImplicationChecksByTransitivity, 28.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2865occurred in iteration=21, InterpolantAutomatonStates: 445, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 23 MinimizatonAttempts, 31992 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 13.4s InterpolantComputationTime, 1176 NumberOfCodeBlocks, 1176 NumberOfCodeBlocksAsserted, 59 NumberOfCheckSat, 1665 ConstructedInterpolants, 147 QuantifiedInterpolants, 26754 SizeOfPredicates, 526 NumberOfNonLiveVariables, 6672 ConjunctsInSsa, 946 ConjunctsInUnsatCore, 63 InterpolantComputations, 4 PerfectInterpolantSequences, 125/284 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown