/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration false -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/forester-heap/dll-circular-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 14:59:08,951 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 14:59:08,956 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 14:59:08,999 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 14:59:08,999 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 14:59:09,011 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 14:59:09,012 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 14:59:09,018 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 14:59:09,021 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 14:59:09,024 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 14:59:09,026 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 14:59:09,027 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 14:59:09,027 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 14:59:09,030 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 14:59:09,033 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 14:59:09,035 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 14:59:09,037 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 14:59:09,039 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 14:59:09,041 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 14:59:09,049 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 14:59:09,050 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 14:59:09,053 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 14:59:09,055 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 14:59:09,056 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 14:59:09,058 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 14:59:09,058 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 14:59:09,058 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 14:59:09,059 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 14:59:09,060 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 14:59:09,061 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 14:59:09,061 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 14:59:09,062 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 14:59:09,063 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 14:59:09,064 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 14:59:09,065 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 14:59:09,065 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 14:59:09,066 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 14:59:09,066 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 14:59:09,067 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 14:59:09,068 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 14:59:09,069 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 14:59:09,070 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 14:59:09,096 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 14:59:09,096 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 14:59:09,098 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 14:59:09,098 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 14:59:09,098 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 14:59:09,098 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 14:59:09,099 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 14:59:09,099 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 14:59:09,099 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 14:59:09,099 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 14:59:09,099 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 14:59:09,100 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 14:59:09,100 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 14:59:09,100 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 14:59:09,100 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 14:59:09,100 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 14:59:09,101 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 14:59:09,101 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 14:59:09,101 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 14:59:09,101 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 14:59:09,101 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 14:59:09,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 14:59:09,102 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 14:59:09,102 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 14:59:09,102 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 14:59:09,103 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 14:59:09,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 14:59:09,103 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 14:59:09,103 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 14:59:09,103 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> false [2020-09-24 14:59:09,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 14:59:09,577 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 14:59:09,584 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 14:59:09,586 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 14:59:09,586 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 14:59:09,588 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-circular-1.i [2020-09-24 14:59:09,688 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/72aac4e87/1ee8428c52fb4fb38935875ff7cb2df7/FLAG5052ef594 [2020-09-24 14:59:10,310 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 14:59:10,311 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/forester-heap/dll-circular-1.i [2020-09-24 14:59:10,330 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/72aac4e87/1ee8428c52fb4fb38935875ff7cb2df7/FLAG5052ef594 [2020-09-24 14:59:10,540 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/72aac4e87/1ee8428c52fb4fb38935875ff7cb2df7 [2020-09-24 14:59:10,553 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 14:59:10,559 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 14:59:10,560 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 14:59:10,560 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 14:59:10,567 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 14:59:10,569 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 02:59:10" (1/1) ... [2020-09-24 14:59:10,573 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41238cec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:59:10, skipping insertion in model container [2020-09-24 14:59:10,573 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 02:59:10" (1/1) ... [2020-09-24 14:59:10,583 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 14:59:10,656 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 14:59:11,166 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 14:59:11,187 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 14:59:11,254 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 14:59:11,312 INFO L208 MainTranslator]: Completed translation [2020-09-24 14:59:11,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:59:11 WrapperNode [2020-09-24 14:59:11,313 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 14:59:11,314 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 14:59:11,314 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 14:59:11,314 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 14:59:11,333 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:59:11" (1/1) ... [2020-09-24 14:59:11,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:59:11" (1/1) ... [2020-09-24 14:59:11,353 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:59:11" (1/1) ... [2020-09-24 14:59:11,353 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:59:11" (1/1) ... [2020-09-24 14:59:11,372 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:59:11" (1/1) ... [2020-09-24 14:59:11,380 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:59:11" (1/1) ... [2020-09-24 14:59:11,384 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:59:11" (1/1) ... [2020-09-24 14:59:11,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 14:59:11,392 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 14:59:11,392 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 14:59:11,392 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 14:59:11,394 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:59:11" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 14:59:11,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 14:59:11,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 14:59:11,485 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 14:59:11,486 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-24 14:59:11,486 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-24 14:59:11,487 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-24 14:59:11,487 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-24 14:59:11,487 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-24 14:59:11,488 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-24 14:59:11,488 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-24 14:59:11,489 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-24 14:59:11,489 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-24 14:59:11,489 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-24 14:59:11,489 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-24 14:59:11,490 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-24 14:59:11,491 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-24 14:59:11,491 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-24 14:59:11,491 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-24 14:59:11,491 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-24 14:59:11,492 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-24 14:59:11,492 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-24 14:59:11,492 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-24 14:59:11,492 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-24 14:59:11,492 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-24 14:59:11,492 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-24 14:59:11,493 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-24 14:59:11,493 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-24 14:59:11,494 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-24 14:59:11,494 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-24 14:59:11,494 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-24 14:59:11,494 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-24 14:59:11,495 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-24 14:59:11,495 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-24 14:59:11,495 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-24 14:59:11,495 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-24 14:59:11,495 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-24 14:59:11,496 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-24 14:59:11,496 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-24 14:59:11,496 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-24 14:59:11,496 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-24 14:59:11,496 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-24 14:59:11,497 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-24 14:59:11,497 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-24 14:59:11,497 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-24 14:59:11,497 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-24 14:59:11,497 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-24 14:59:11,499 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-24 14:59:11,499 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-24 14:59:11,500 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-24 14:59:11,500 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-24 14:59:11,500 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-24 14:59:11,500 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-24 14:59:11,500 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-24 14:59:11,500 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 14:59:11,500 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-24 14:59:11,501 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-24 14:59:11,501 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 14:59:11,501 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-24 14:59:11,501 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-24 14:59:11,502 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-24 14:59:11,502 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-24 14:59:11,502 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-24 14:59:11,502 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 14:59:11,503 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-24 14:59:11,503 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-24 14:59:11,503 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-24 14:59:11,503 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-24 14:59:11,504 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-24 14:59:11,504 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-24 14:59:11,504 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-24 14:59:11,504 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-24 14:59:11,505 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-24 14:59:11,505 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-24 14:59:11,506 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-24 14:59:11,506 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-24 14:59:11,507 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-24 14:59:11,507 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-24 14:59:11,507 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-24 14:59:11,508 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-24 14:59:11,508 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-24 14:59:11,508 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-24 14:59:11,508 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-24 14:59:11,508 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-24 14:59:11,509 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-24 14:59:11,509 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-24 14:59:11,509 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-24 14:59:11,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-24 14:59:11,510 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-24 14:59:11,510 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-24 14:59:11,510 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-24 14:59:11,510 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-24 14:59:11,511 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-24 14:59:11,511 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-24 14:59:11,511 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-24 14:59:11,511 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-24 14:59:11,511 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-24 14:59:11,511 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-24 14:59:11,511 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-24 14:59:11,512 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-24 14:59:11,512 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-24 14:59:11,512 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-24 14:59:11,512 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-24 14:59:11,512 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-24 14:59:11,512 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-24 14:59:11,512 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-24 14:59:11,513 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-24 14:59:11,513 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 14:59:11,513 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 14:59:11,513 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 14:59:11,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 14:59:11,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 14:59:11,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 14:59:11,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 14:59:11,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 14:59:11,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 14:59:11,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 14:59:11,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 14:59:12,139 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 14:59:12,139 INFO L295 CfgBuilder]: Removed 9 assume(true) statements. [2020-09-24 14:59:12,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 02:59:12 BoogieIcfgContainer [2020-09-24 14:59:12,145 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 14:59:12,146 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 14:59:12,146 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 14:59:12,150 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 14:59:12,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 02:59:10" (1/3) ... [2020-09-24 14:59:12,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@272eb34f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 02:59:12, skipping insertion in model container [2020-09-24 14:59:12,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:59:11" (2/3) ... [2020-09-24 14:59:12,152 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@272eb34f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 02:59:12, skipping insertion in model container [2020-09-24 14:59:12,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 02:59:12" (3/3) ... [2020-09-24 14:59:12,154 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-circular-1.i [2020-09-24 14:59:12,166 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 14:59:12,177 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-09-24 14:59:12,197 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-09-24 14:59:12,225 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 14:59:12,226 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 14:59:12,226 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 14:59:12,226 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 14:59:12,226 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 14:59:12,226 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 14:59:12,226 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 14:59:12,227 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 14:59:12,249 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states. [2020-09-24 14:59:12,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-09-24 14:59:12,256 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:59:12,257 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 14:59:12,258 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:59:12,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:59:12,264 INFO L82 PathProgramCache]: Analyzing trace with hash -740897811, now seen corresponding path program 1 times [2020-09-24 14:59:12,274 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:59:12,275 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1896580205] [2020-09-24 14:59:12,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:59:12,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:59:12,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:59:12,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:59:12,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 14:59:12,529 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1896580205] [2020-09-24 14:59:12,531 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 14:59:12,532 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 14:59:12,533 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500203615] [2020-09-24 14:59:12,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 14:59:12,540 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:59:12,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 14:59:12,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 14:59:12,563 INFO L87 Difference]: Start difference. First operand 96 states. Second operand 3 states. [2020-09-24 14:59:12,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:59:12,833 INFO L93 Difference]: Finished difference Result 179 states and 215 transitions. [2020-09-24 14:59:12,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 14:59:12,835 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2020-09-24 14:59:12,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:59:12,847 INFO L225 Difference]: With dead ends: 179 [2020-09-24 14:59:12,847 INFO L226 Difference]: Without dead ends: 77 [2020-09-24 14:59:12,852 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 14:59:12,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-09-24 14:59:12,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2020-09-24 14:59:12,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-09-24 14:59:12,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2020-09-24 14:59:12,899 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 20 [2020-09-24 14:59:12,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:59:12,899 INFO L479 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2020-09-24 14:59:12,899 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 14:59:12,899 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2020-09-24 14:59:12,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-24 14:59:12,901 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:59:12,901 INFO L422 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] [2020-09-24 14:59:12,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 14:59:12,904 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:59:12,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:59:12,905 INFO L82 PathProgramCache]: Analyzing trace with hash -2066269805, now seen corresponding path program 1 times [2020-09-24 14:59:12,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:59:12,905 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [326451651] [2020-09-24 14:59:12,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:59:12,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:59:13,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:59:13,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:59:13,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 14:59:13,226 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [326451651] [2020-09-24 14:59:13,226 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 14:59:13,226 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 14:59:13,227 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457205939] [2020-09-24 14:59:13,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 14:59:13,229 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:59:13,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 14:59:13,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 14:59:13,230 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand 10 states. [2020-09-24 14:59:13,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:59:13,692 INFO L93 Difference]: Finished difference Result 155 states and 163 transitions. [2020-09-24 14:59:13,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 14:59:13,693 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2020-09-24 14:59:13,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:59:13,696 INFO L225 Difference]: With dead ends: 155 [2020-09-24 14:59:13,696 INFO L226 Difference]: Without dead ends: 153 [2020-09-24 14:59:13,697 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2020-09-24 14:59:13,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-09-24 14:59:13,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 85. [2020-09-24 14:59:13,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-09-24 14:59:13,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 91 transitions. [2020-09-24 14:59:13,712 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 91 transitions. Word has length 22 [2020-09-24 14:59:13,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:59:13,713 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 91 transitions. [2020-09-24 14:59:13,713 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 14:59:13,713 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 91 transitions. [2020-09-24 14:59:13,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-09-24 14:59:13,715 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:59:13,715 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 14:59:13,715 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 14:59:13,715 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:59:13,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:59:13,716 INFO L82 PathProgramCache]: Analyzing trace with hash 807179936, now seen corresponding path program 1 times [2020-09-24 14:59:13,716 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:59:13,716 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [923550310] [2020-09-24 14:59:13,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:59:13,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:59:13,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:59:13,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:59:13,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 14:59:13,965 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [923550310] [2020-09-24 14:59:13,965 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 14:59:13,966 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-24 14:59:13,966 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720839157] [2020-09-24 14:59:13,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 14:59:13,967 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:59:13,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 14:59:13,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-09-24 14:59:13,968 INFO L87 Difference]: Start difference. First operand 85 states and 91 transitions. Second operand 12 states. [2020-09-24 14:59:14,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:59:14,444 INFO L93 Difference]: Finished difference Result 122 states and 132 transitions. [2020-09-24 14:59:14,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 14:59:14,445 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 31 [2020-09-24 14:59:14,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:59:14,446 INFO L225 Difference]: With dead ends: 122 [2020-09-24 14:59:14,446 INFO L226 Difference]: Without dead ends: 120 [2020-09-24 14:59:14,447 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=288, Unknown=0, NotChecked=0, Total=380 [2020-09-24 14:59:14,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-09-24 14:59:14,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 105. [2020-09-24 14:59:14,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-09-24 14:59:14,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 114 transitions. [2020-09-24 14:59:14,459 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 114 transitions. Word has length 31 [2020-09-24 14:59:14,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:59:14,459 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 114 transitions. [2020-09-24 14:59:14,459 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 14:59:14,459 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 114 transitions. [2020-09-24 14:59:14,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-09-24 14:59:14,461 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:59:14,461 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 14:59:14,461 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 14:59:14,462 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:59:14,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:59:14,462 INFO L82 PathProgramCache]: Analyzing trace with hash -988969633, now seen corresponding path program 1 times [2020-09-24 14:59:14,462 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:59:14,463 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1830328104] [2020-09-24 14:59:14,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:59:14,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:59:14,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:59:14,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:59:14,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 14:59:14,532 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1830328104] [2020-09-24 14:59:14,533 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 14:59:14,533 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 14:59:14,533 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873086270] [2020-09-24 14:59:14,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 14:59:14,534 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:59:14,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 14:59:14,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 14:59:14,535 INFO L87 Difference]: Start difference. First operand 105 states and 114 transitions. Second operand 4 states. [2020-09-24 14:59:14,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:59:14,691 INFO L93 Difference]: Finished difference Result 234 states and 252 transitions. [2020-09-24 14:59:14,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 14:59:14,691 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2020-09-24 14:59:14,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:59:14,693 INFO L225 Difference]: With dead ends: 234 [2020-09-24 14:59:14,694 INFO L226 Difference]: Without dead ends: 166 [2020-09-24 14:59:14,695 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 14:59:14,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-09-24 14:59:14,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 125. [2020-09-24 14:59:14,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-09-24 14:59:14,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 135 transitions. [2020-09-24 14:59:14,708 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 135 transitions. Word has length 36 [2020-09-24 14:59:14,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:59:14,708 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 135 transitions. [2020-09-24 14:59:14,708 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 14:59:14,709 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 135 transitions. [2020-09-24 14:59:14,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-24 14:59:14,710 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:59:14,710 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 14:59:14,711 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 14:59:14,711 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:59:14,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:59:14,711 INFO L82 PathProgramCache]: Analyzing trace with hash 1230029085, now seen corresponding path program 1 times [2020-09-24 14:59:14,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:59:14,712 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [23035537] [2020-09-24 14:59:14,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:59:14,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:59:15,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:59:15,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:59:15,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 14:59:15,157 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [23035537] [2020-09-24 14:59:15,157 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 14:59:15,157 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-24 14:59:15,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363346642] [2020-09-24 14:59:15,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 14:59:15,159 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:59:15,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 14:59:15,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-09-24 14:59:15,159 INFO L87 Difference]: Start difference. First operand 125 states and 135 transitions. Second operand 14 states. [2020-09-24 14:59:15,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:59:15,932 INFO L93 Difference]: Finished difference Result 215 states and 228 transitions. [2020-09-24 14:59:15,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 14:59:15,932 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 37 [2020-09-24 14:59:15,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:59:15,934 INFO L225 Difference]: With dead ends: 215 [2020-09-24 14:59:15,934 INFO L226 Difference]: Without dead ends: 185 [2020-09-24 14:59:15,935 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=190, Invalid=622, Unknown=0, NotChecked=0, Total=812 [2020-09-24 14:59:15,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-09-24 14:59:15,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 133. [2020-09-24 14:59:15,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-09-24 14:59:15,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 143 transitions. [2020-09-24 14:59:15,963 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 143 transitions. Word has length 37 [2020-09-24 14:59:15,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:59:15,964 INFO L479 AbstractCegarLoop]: Abstraction has 133 states and 143 transitions. [2020-09-24 14:59:15,964 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-24 14:59:15,964 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 143 transitions. [2020-09-24 14:59:15,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-24 14:59:15,966 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:59:15,966 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 14:59:15,966 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 14:59:15,966 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:59:15,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:59:15,967 INFO L82 PathProgramCache]: Analyzing trace with hash 626563183, now seen corresponding path program 1 times [2020-09-24 14:59:15,967 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:59:15,967 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [172254286] [2020-09-24 14:59:15,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:59:15,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:59:16,021 ERROR L253 erpolLogProxyWrapper]: Interpolant 16 not inductive [2020-09-24 14:59:16,036 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 14:59:16,037 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: generated interpolants did not pass sanity check at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:219) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:849) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:392) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:386) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:166) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:326) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-09-24 14:59:16,044 INFO L168 Benchmark]: Toolchain (without parser) took 5488.12 ms. Allocated memory was 140.5 MB in the beginning and 286.3 MB in the end (delta: 145.8 MB). Free memory was 102.4 MB in the beginning and 244.5 MB in the end (delta: -142.2 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. [2020-09-24 14:59:16,045 INFO L168 Benchmark]: CDTParser took 0.62 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 14:59:16,046 INFO L168 Benchmark]: CACSL2BoogieTranslator took 753.83 ms. Allocated memory was 140.5 MB in the beginning and 205.0 MB in the end (delta: 64.5 MB). Free memory was 101.7 MB in the beginning and 172.6 MB in the end (delta: -70.9 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. [2020-09-24 14:59:16,047 INFO L168 Benchmark]: Boogie Preprocessor took 77.41 ms. Allocated memory is still 205.0 MB. Free memory was 172.6 MB in the beginning and 169.2 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. [2020-09-24 14:59:16,048 INFO L168 Benchmark]: RCFGBuilder took 753.15 ms. Allocated memory is still 205.0 MB. Free memory was 169.2 MB in the beginning and 120.2 MB in the end (delta: 49.0 MB). Peak memory consumption was 49.0 MB. Max. memory is 7.1 GB. [2020-09-24 14:59:16,049 INFO L168 Benchmark]: TraceAbstraction took 3894.61 ms. Allocated memory was 205.0 MB in the beginning and 286.3 MB in the end (delta: 81.3 MB). Free memory was 119.5 MB in the beginning and 244.5 MB in the end (delta: -125.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 14:59:16,053 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.62 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 753.83 ms. Allocated memory was 140.5 MB in the beginning and 205.0 MB in the end (delta: 64.5 MB). Free memory was 101.7 MB in the beginning and 172.6 MB in the end (delta: -70.9 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 77.41 ms. Allocated memory is still 205.0 MB. Free memory was 172.6 MB in the beginning and 169.2 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 753.15 ms. Allocated memory is still 205.0 MB. Free memory was 169.2 MB in the beginning and 120.2 MB in the end (delta: 49.0 MB). Peak memory consumption was 49.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3894.61 ms. Allocated memory was 205.0 MB in the beginning and 286.3 MB in the end (delta: 81.3 MB). Free memory was 119.5 MB in the beginning and 244.5 MB in the end (delta: -125.0 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: generated interpolants did not pass sanity check de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: generated interpolants did not pass sanity check: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:219) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...