/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 SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/verifythis/elimination_max.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 05:00:08,160 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 05:00:08,165 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 05:00:08,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 05:00:08,203 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 05:00:08,211 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 05:00:08,213 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 05:00:08,216 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 05:00:08,219 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 05:00:08,221 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 05:00:08,222 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 05:00:08,223 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 05:00:08,224 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 05:00:08,226 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 05:00:08,229 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 05:00:08,231 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 05:00:08,232 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 05:00:08,233 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 05:00:08,234 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 05:00:08,240 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 05:00:08,242 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 05:00:08,243 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 05:00:08,243 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 05:00:08,244 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 05:00:08,246 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 05:00:08,246 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 05:00:08,246 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 05:00:08,247 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 05:00:08,248 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 05:00:08,248 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 05:00:08,249 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 05:00:08,249 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 05:00:08,250 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 05:00:08,251 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 05:00:08,251 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 05:00:08,252 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 05:00:08,252 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 05:00:08,252 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 05:00:08,253 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 05:00:08,253 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 05:00:08,254 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 05:00:08,255 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 [2020-10-15 05:00:08,276 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 05:00:08,276 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 05:00:08,277 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 05:00:08,278 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 05:00:08,278 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 05:00:08,278 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 05:00:08,278 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 05:00:08,278 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 05:00:08,279 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 05:00:08,279 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 05:00:08,279 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 05:00:08,279 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 05:00:08,279 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 05:00:08,280 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 05:00:08,280 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 05:00:08,280 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 05:00:08,280 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 05:00:08,280 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 05:00:08,281 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 05:00:08,281 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 05:00:08,281 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 05:00:08,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 05:00:08,281 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 05:00:08,282 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 05:00:08,282 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 05:00:08,282 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 05:00:08,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 05:00:08,282 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 05:00:08,282 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 05:00:08,283 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 -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 05:00:08,571 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 05:00:08,592 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 05:00:08,596 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 05:00:08,598 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 05:00:08,598 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 05:00:08,599 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/verifythis/elimination_max.c [2020-10-15 05:00:08,667 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/822efad55/52eb93c792a240c9aa30e29bed14bff1/FLAGa4dd02264 [2020-10-15 05:00:09,067 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 05:00:09,068 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/verifythis/elimination_max.c [2020-10-15 05:00:09,075 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/822efad55/52eb93c792a240c9aa30e29bed14bff1/FLAGa4dd02264 [2020-10-15 05:00:09,477 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/822efad55/52eb93c792a240c9aa30e29bed14bff1 [2020-10-15 05:00:09,486 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 05:00:09,487 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 05:00:09,490 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 05:00:09,490 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 05:00:09,493 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 05:00:09,494 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:00:09" (1/1) ... [2020-10-15 05:00:09,498 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f21c349 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:00:09, skipping insertion in model container [2020-10-15 05:00:09,498 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:00:09" (1/1) ... [2020-10-15 05:00:09,506 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 05:00:09,524 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 05:00:09,696 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 05:00:09,713 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 05:00:09,733 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 05:00:09,752 INFO L208 MainTranslator]: Completed translation [2020-10-15 05:00:09,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:00:09 WrapperNode [2020-10-15 05:00:09,753 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 05:00:09,753 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 05:00:09,754 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 05:00:09,754 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 05:00:09,858 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:00:09" (1/1) ... [2020-10-15 05:00:09,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:00:09" (1/1) ... [2020-10-15 05:00:09,868 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:00:09" (1/1) ... [2020-10-15 05:00:09,869 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:00:09" (1/1) ... [2020-10-15 05:00:09,878 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:00:09" (1/1) ... [2020-10-15 05:00:09,883 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:00:09" (1/1) ... [2020-10-15 05:00:09,885 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:00:09" (1/1) ... [2020-10-15 05:00:09,888 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 05:00:09,888 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 05:00:09,888 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 05:00:09,889 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 05:00:09,889 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:00:09" (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 [2020-10-15 05:00:09,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 05:00:09,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 05:00:09,980 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 05:00:09,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-15 05:00:09,980 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 05:00:09,981 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-15 05:00:09,981 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-15 05:00:09,982 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-15 05:00:09,982 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 05:00:09,982 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 05:00:09,983 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 05:00:09,983 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-15 05:00:09,983 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-15 05:00:09,983 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 05:00:09,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-15 05:00:09,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-15 05:00:09,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-15 05:00:09,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 05:00:09,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 05:00:09,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 05:00:09,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 05:00:10,435 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 05:00:10,435 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-15 05:00:10,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:00:10 BoogieIcfgContainer [2020-10-15 05:00:10,440 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 05:00:10,441 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 05:00:10,441 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 05:00:10,445 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 05:00:10,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 05:00:09" (1/3) ... [2020-10-15 05:00:10,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@157b26e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:00:10, skipping insertion in model container [2020-10-15 05:00:10,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:00:09" (2/3) ... [2020-10-15 05:00:10,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@157b26e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:00:10, skipping insertion in model container [2020-10-15 05:00:10,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:00:10" (3/3) ... [2020-10-15 05:00:10,450 INFO L109 eAbstractionObserver]: Analyzing ICFG elimination_max.c [2020-10-15 05:00:10,461 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 05:00:10,469 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 05:00:10,501 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 05:00:10,538 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 05:00:10,538 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 05:00:10,538 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 05:00:10,538 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 05:00:10,539 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 05:00:10,539 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 05:00:10,539 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 05:00:10,539 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 05:00:10,568 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2020-10-15 05:00:10,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 05:00:10,576 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 05:00:10,577 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 05:00:10,578 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 05:00:10,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 05:00:10,586 INFO L82 PathProgramCache]: Analyzing trace with hash -233920769, now seen corresponding path program 1 times [2020-10-15 05:00:10,596 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 05:00:10,597 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1880962252] [2020-10-15 05:00:10,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 05:00:10,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:00:10,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:00:10,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:00:10,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:00:11,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:00:11,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-15 05:00:11,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 05:00:11,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 665 [2020-10-15 05:00:11,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:00:11,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:00:11,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 05:00:11,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-15 05:00:11,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-15 05:00:11,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 05:00:11,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 05:00:11,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:00:11,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:00:11,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:00:11,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 05:00:11,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 05:00:11,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 05:00:11,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:00:11,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:00:11,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 05:00:11,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:00:11,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 05:00:11,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:00:11,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 05:00:11,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:00:11,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:00:11,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:00:11,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:00:11,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 05:00:11,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 05:00:11,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 05:00:11,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:00:11,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:00:11,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 05:00:11,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:00:11,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 05:00:11,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:00:11,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 05:00:11,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:00:11,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:00:11,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:00:11,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 05:00:11,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 05:00:11,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 05:00:11,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:00:11,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:00:11,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 05:00:11,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:00:11,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 05:00:11,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:00:11,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-15 05:00:11,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:00:11,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:00:11,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:00:11,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:00:11,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 05:00:11,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 05:00:11,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 05:00:11,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:00:11,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:00:11,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 05:00:11,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:00:11,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 05:00:11,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:00:11,668 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-15 05:00:11,669 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1880962252] [2020-10-15 05:00:11,671 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 05:00:11,672 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 05:00:11,673 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809036365] [2020-10-15 05:00:11,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 05:00:11,678 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 05:00:11,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 05:00:11,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-10-15 05:00:11,696 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 10 states. [2020-10-15 05:00:12,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 05:00:12,142 INFO L93 Difference]: Finished difference Result 75 states and 94 transitions. [2020-10-15 05:00:12,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-15 05:00:12,144 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 29 [2020-10-15 05:00:12,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 05:00:12,154 INFO L225 Difference]: With dead ends: 75 [2020-10-15 05:00:12,154 INFO L226 Difference]: Without dead ends: 38 [2020-10-15 05:00:12,159 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2020-10-15 05:00:12,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-15 05:00:12,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-10-15 05:00:12,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-15 05:00:12,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2020-10-15 05:00:12,209 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 29 [2020-10-15 05:00:12,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 05:00:12,209 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2020-10-15 05:00:12,209 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 05:00:12,209 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2020-10-15 05:00:12,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-15 05:00:12,212 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 05:00:12,212 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 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] [2020-10-15 05:00:12,212 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 05:00:12,212 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 05:00:12,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 05:00:12,213 INFO L82 PathProgramCache]: Analyzing trace with hash -740129534, now seen corresponding path program 1 times [2020-10-15 05:00:12,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 05:00:12,214 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [951620988] [2020-10-15 05:00:12,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 05:00:12,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:00:12,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:00:12,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:00:12,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:00:12,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-15 05:00:12,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 05:00:12,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 331 [2020-10-15 05:00:12,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:00:12,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:00:12,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 05:00:12,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-15 05:00:12,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-15 05:00:12,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:00:12,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 05:00:12,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:00:12,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:00:12,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:00:12,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 05:00:12,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 05:00:12,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 05:00:12,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:00:12,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:00:12,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 05:00:12,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:00:12,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 05:00:12,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:00:12,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 05:00:12,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:00:12,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:00:12,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:00:12,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 05:00:12,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 05:00:12,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 05:00:12,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:00:12,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:00:12,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 05:00:12,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:00:12,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 05:00:12,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:00:12,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 05:00:12,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:00:12,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:00:12,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:00:12,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 05:00:12,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 05:00:12,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 05:00:12,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:00:12,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:00:12,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 05:00:12,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:00:12,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 05:00:12,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:00:12,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-15 05:00:12,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:00:12,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:00:12,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:00:12,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 05:00:12,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 05:00:12,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 05:00:12,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:00:12,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:00:12,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 05:00:12,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:00:12,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 05:00:12,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:00:12,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-15 05:00:12,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:00:12,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:00:12,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:00:12,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 05:00:12,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 05:00:12,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 05:00:12,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:00:12,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:00:12,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 05:00:12,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:00:12,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 05:00:12,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:00:12,733 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-15 05:00:12,734 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [951620988] [2020-10-15 05:00:12,734 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 05:00:12,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 05:00:12,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142042178] [2020-10-15 05:00:12,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 05:00:12,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 05:00:12,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 05:00:12,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-15 05:00:12,738 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand 9 states. [2020-10-15 05:00:13,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 05:00:13,070 INFO L93 Difference]: Finished difference Result 59 states and 67 transitions. [2020-10-15 05:00:13,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-15 05:00:13,071 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 36 [2020-10-15 05:00:13,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 05:00:13,073 INFO L225 Difference]: With dead ends: 59 [2020-10-15 05:00:13,073 INFO L226 Difference]: Without dead ends: 57 [2020-10-15 05:00:13,075 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2020-10-15 05:00:13,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-10-15 05:00:13,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 51. [2020-10-15 05:00:13,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-15 05:00:13,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 58 transitions. [2020-10-15 05:00:13,088 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 58 transitions. Word has length 36 [2020-10-15 05:00:13,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 05:00:13,089 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 58 transitions. [2020-10-15 05:00:13,089 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 05:00:13,089 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 58 transitions. [2020-10-15 05:00:13,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-15 05:00:13,091 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 05:00:13,091 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 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] [2020-10-15 05:00:13,091 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 05:00:13,092 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 05:00:13,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 05:00:13,092 INFO L82 PathProgramCache]: Analyzing trace with hash -1121274113, now seen corresponding path program 1 times [2020-10-15 05:00:13,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 05:00:13,093 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [751722861] [2020-10-15 05:00:13,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 05:00:13,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:00:13,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:00:13,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:00:13,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:00:13,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-15 05:00:13,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 05:00:13,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 342 [2020-10-15 05:00:13,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:00:13,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:00:13,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 05:00:13,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-15 05:00:13,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-15 05:00:13,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:00:13,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 05:00:13,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:00:13,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:00:13,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:00:13,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 05:00:13,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 05:00:13,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 05:00:13,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:00:13,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:00:13,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 05:00:13,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:00:13,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 05:00:13,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:00:13,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 05:00:13,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:00:13,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:00:13,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:00:13,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 05:00:13,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 05:00:13,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 05:00:13,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:00:13,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:00:13,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 05:00:13,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:00:13,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 05:00:13,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:00:13,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 05:00:13,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:00:13,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:00:13,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:00:13,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 05:00:13,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 05:00:13,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 05:00:13,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:00:13,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:00:13,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 05:00:13,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:00:13,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 05:00:13,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:00:13,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-15 05:00:13,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:00:13,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:00:13,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:00:13,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 05:00:13,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 05:00:13,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 05:00:13,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:00:13,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:00:13,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 05:00:13,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:00:13,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 05:00:13,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:00:13,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-15 05:00:13,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:00:13,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:00:13,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:00:13,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 05:00:13,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 05:00:13,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 05:00:13,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:00:13,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:00:13,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 05:00:13,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:00:13,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 05:00:13,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:00:13,609 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-15 05:00:13,610 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [751722861] [2020-10-15 05:00:13,610 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 05:00:13,610 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 05:00:13,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707754938] [2020-10-15 05:00:13,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 05:00:13,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 05:00:13,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 05:00:13,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-10-15 05:00:13,612 INFO L87 Difference]: Start difference. First operand 51 states and 58 transitions. Second operand 10 states. [2020-10-15 05:00:13,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 05:00:13,901 INFO L93 Difference]: Finished difference Result 51 states and 58 transitions. [2020-10-15 05:00:13,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-15 05:00:13,902 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 38 [2020-10-15 05:00:13,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 05:00:13,903 INFO L225 Difference]: With dead ends: 51 [2020-10-15 05:00:13,903 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 05:00:13,904 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2020-10-15 05:00:13,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 05:00:13,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 05:00:13,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 05:00:13,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 05:00:13,906 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2020-10-15 05:00:13,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 05:00:13,906 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 05:00:13,906 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 05:00:13,906 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 05:00:13,906 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 05:00:13,907 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 05:00:13,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-15 05:00:14,059 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-15 05:00:14,060 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-10-15 05:00:14,060 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-15 05:00:14,060 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-15 05:00:14,060 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-15 05:00:14,060 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-15 05:00:14,060 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-15 05:00:14,061 INFO L271 CegarLoopResult]: At program point assume_abort_if_notENTRY(lines 5 7) the Hoare annotation is: true [2020-10-15 05:00:14,061 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-10-15 05:00:14,061 INFO L268 CegarLoopResult]: For program point L6-2(lines 5 7) no Hoare annotation was computed. [2020-10-15 05:00:14,061 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 5 7) no Hoare annotation was computed. [2020-10-15 05:00:14,061 INFO L268 CegarLoopResult]: For program point L33(lines 33 34) no Hoare annotation was computed. [2020-10-15 05:00:14,062 INFO L264 CegarLoopResult]: At program point L33-2(lines 23 35) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= (select |#memory_int| main_~a~0.base) .cse0) (= .cse0 (select |#memory_int| |main_#t~malloc2.base|)))) [2020-10-15 05:00:14,062 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 14 49) no Hoare annotation was computed. [2020-10-15 05:00:14,062 INFO L268 CegarLoopResult]: For program point L23-2(lines 23 35) no Hoare annotation was computed. [2020-10-15 05:00:14,062 INFO L264 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: (and (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2020-10-15 05:00:14,062 INFO L268 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed. [2020-10-15 05:00:14,062 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 14 49) no Hoare annotation was computed. [2020-10-15 05:00:14,063 INFO L264 CegarLoopResult]: At program point L44(line 44) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= |main_#t~mem11| 0) (= (select |#memory_int| main_~a~0.base) .cse0) (= .cse0 (select |#memory_int| |main_#t~malloc2.base|)) (= |main_#t~mem12| 0))) [2020-10-15 05:00:14,063 INFO L268 CegarLoopResult]: For program point L44-1(line 44) no Hoare annotation was computed. [2020-10-15 05:00:14,063 INFO L264 CegarLoopResult]: At program point L40(line 40) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= (select |#memory_int| main_~a~0.base) .cse0) (= .cse0 (select |#memory_int| |main_#t~malloc2.base|)))) [2020-10-15 05:00:14,063 INFO L268 CegarLoopResult]: For program point L40-1(line 40) no Hoare annotation was computed. [2020-10-15 05:00:14,063 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 14 49) the Hoare annotation is: (and (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2020-10-15 05:00:14,064 INFO L264 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2020-10-15 05:00:14,064 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-10-15 05:00:14,064 INFO L264 CegarLoopResult]: At program point L41(line 41) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= (select |#memory_int| main_~a~0.base) .cse0) (= |main_#t~mem8| 0) (= .cse0 (select |#memory_int| |main_#t~malloc2.base|)) (<= |main_#t~mem8| |main_#t~mem9|))) [2020-10-15 05:00:14,064 INFO L268 CegarLoopResult]: For program point L43-2(lines 43 45) no Hoare annotation was computed. [2020-10-15 05:00:14,064 INFO L268 CegarLoopResult]: For program point L41-1(line 41) no Hoare annotation was computed. [2020-10-15 05:00:14,064 INFO L264 CegarLoopResult]: At program point L43-3(lines 43 45) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= (select |#memory_int| main_~a~0.base) .cse0) (= .cse0 (select |#memory_int| |main_#t~malloc2.base|)))) [2020-10-15 05:00:14,065 INFO L268 CegarLoopResult]: For program point L43-4(lines 43 45) no Hoare annotation was computed. [2020-10-15 05:00:14,065 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 8 10) the Hoare annotation is: true [2020-10-15 05:00:14,065 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 8 10) no Hoare annotation was computed. [2020-10-15 05:00:14,065 INFO L268 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2020-10-15 05:00:14,065 INFO L268 CegarLoopResult]: For program point L9-1(line 9) no Hoare annotation was computed. [2020-10-15 05:00:14,065 INFO L268 CegarLoopResult]: For program point L9-3(lines 8 10) no Hoare annotation was computed. [2020-10-15 05:00:14,065 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2020-10-15 05:00:14,066 INFO L264 CegarLoopResult]: At program point #Ultimate.meminitENTRY(line -1) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2020-10-15 05:00:14,066 INFO L268 CegarLoopResult]: For program point #Ultimate.meminitEXIT(line -1) no Hoare annotation was computed. [2020-10-15 05:00:14,066 INFO L268 CegarLoopResult]: For program point #Ultimate.meminitFINAL(line -1) no Hoare annotation was computed. [2020-10-15 05:00:14,074 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:238) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:693) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:260) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:217) 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) [2020-10-15 05:00:14,080 INFO L168 Benchmark]: Toolchain (without parser) took 4590.87 ms. Allocated memory was 147.8 MB in the beginning and 243.8 MB in the end (delta: 95.9 MB). Free memory was 104.1 MB in the beginning and 128.0 MB in the end (delta: -23.9 MB). Peak memory consumption was 72.1 MB. Max. memory is 7.1 GB. [2020-10-15 05:00:14,081 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.0 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. [2020-10-15 05:00:14,082 INFO L168 Benchmark]: CACSL2BoogieTranslator took 263.47 ms. Allocated memory is still 147.8 MB. Free memory was 103.7 MB in the beginning and 93.1 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2020-10-15 05:00:14,083 INFO L168 Benchmark]: Boogie Preprocessor took 134.45 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 93.1 MB in the beginning and 182.3 MB in the end (delta: -89.3 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-10-15 05:00:14,083 INFO L168 Benchmark]: RCFGBuilder took 551.83 ms. Allocated memory is still 205.0 MB. Free memory was 182.3 MB in the beginning and 164.2 MB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 7.1 GB. [2020-10-15 05:00:14,084 INFO L168 Benchmark]: TraceAbstraction took 3635.03 ms. Allocated memory was 205.0 MB in the beginning and 243.8 MB in the end (delta: 38.8 MB). Free memory was 163.3 MB in the beginning and 128.0 MB in the end (delta: 35.3 MB). Peak memory consumption was 74.1 MB. Max. memory is 7.1 GB. [2020-10-15 05:00:14,089 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.0 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 263.47 ms. Allocated memory is still 147.8 MB. Free memory was 103.7 MB in the beginning and 93.1 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 134.45 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 93.1 MB in the beginning and 182.3 MB in the end (delta: -89.3 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 551.83 ms. Allocated memory is still 205.0 MB. Free memory was 182.3 MB in the beginning and 164.2 MB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3635.03 ms. Allocated memory was 205.0 MB in the beginning and 243.8 MB in the end (delta: 38.8 MB). Free memory was 163.3 MB in the beginning and 128.0 MB in the end (delta: 35.3 MB). Peak memory consumption was 74.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 9]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ExceptionOrErrorResult: IllegalArgumentException: unknown symbol (const Int (Array Int Int)) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: unknown symbol (const Int (Array Int Int)): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:238) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...