/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/ldv-regression/ex3_forlist.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 23:28:53,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 23:28:53,154 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 23:28:53,196 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 23:28:53,196 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 23:28:53,204 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 23:28:53,205 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 23:28:53,209 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 23:28:53,212 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 23:28:53,215 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 23:28:53,216 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 23:28:53,217 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 23:28:53,217 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 23:28:53,220 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 23:28:53,223 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 23:28:53,224 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 23:28:53,226 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 23:28:53,227 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 23:28:53,229 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 23:28:53,238 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 23:28:53,240 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 23:28:53,241 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 23:28:53,242 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 23:28:53,243 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 23:28:53,254 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 23:28:53,255 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 23:28:53,255 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 23:28:53,256 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 23:28:53,257 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 23:28:53,258 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 23:28:53,258 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 23:28:53,258 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 23:28:53,261 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 23:28:53,262 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 23:28:53,263 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 23:28:53,263 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 23:28:53,264 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 23:28:53,264 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 23:28:53,264 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 23:28:53,265 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 23:28:53,266 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 23:28:53,267 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 [2020-10-14 23:28:53,308 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 23:28:53,308 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 23:28:53,310 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 23:28:53,310 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 23:28:53,310 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 23:28:53,311 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 23:28:53,311 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 23:28:53,311 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 23:28:53,312 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 23:28:53,312 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 23:28:53,313 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 23:28:53,313 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 23:28:53,313 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 23:28:53,314 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 23:28:53,314 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 23:28:53,315 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 23:28:53,315 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 23:28:53,315 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 23:28:53,315 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 23:28:53,315 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 23:28:53,316 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 23:28:53,316 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 23:28:53,316 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 23:28:53,316 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 23:28:53,316 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 23:28:53,317 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 23:28:53,317 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 23:28:53,317 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 23:28:53,317 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 23:28:53,317 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; [2020-10-14 23:28:53,653 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 23:28:53,666 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 23:28:53,673 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 23:28:53,674 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 23:28:53,675 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 23:28:53,675 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/ex3_forlist.i [2020-10-14 23:28:53,735 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/41f33c21f/a110344c081542d3a30c3477b7f45438/FLAG1f9cd3855 [2020-10-14 23:28:54,228 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 23:28:54,229 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/ex3_forlist.i [2020-10-14 23:28:54,239 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/41f33c21f/a110344c081542d3a30c3477b7f45438/FLAG1f9cd3855 [2020-10-14 23:28:54,623 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/41f33c21f/a110344c081542d3a30c3477b7f45438 [2020-10-14 23:28:54,633 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 23:28:54,634 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 23:28:54,635 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 23:28:54,636 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 23:28:54,639 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 23:28:54,639 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:28:54" (1/1) ... [2020-10-14 23:28:54,642 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78541603 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:28:54, skipping insertion in model container [2020-10-14 23:28:54,642 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:28:54" (1/1) ... [2020-10-14 23:28:54,649 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 23:28:54,669 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 23:28:54,821 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 23:28:54,829 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 23:28:54,853 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 23:28:54,966 INFO L208 MainTranslator]: Completed translation [2020-10-14 23:28:54,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:28:54 WrapperNode [2020-10-14 23:28:54,967 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 23:28:54,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 23:28:54,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 23:28:54,968 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 23:28:54,982 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:28:54" (1/1) ... [2020-10-14 23:28:54,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:28:54" (1/1) ... [2020-10-14 23:28:54,993 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:28:54" (1/1) ... [2020-10-14 23:28:54,993 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:28:54" (1/1) ... [2020-10-14 23:28:55,003 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:28:54" (1/1) ... [2020-10-14 23:28:55,009 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:28:54" (1/1) ... [2020-10-14 23:28:55,011 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:28:54" (1/1) ... [2020-10-14 23:28:55,013 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 23:28:55,014 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 23:28:55,014 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 23:28:55,014 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 23:28:55,015 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:28:54" (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 [2020-10-14 23:28:55,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 23:28:55,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 23:28:55,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-10-14 23:28:55,078 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-14 23:28:55,078 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-10-14 23:28:55,079 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2020-10-14 23:28:55,079 INFO L138 BoogieDeclarations]: Found implementation of procedure malloc [2020-10-14 23:28:55,080 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 23:28:55,080 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 23:28:55,080 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-10-14 23:28:55,080 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-14 23:28:55,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 23:28:55,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 23:28:55,081 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-10-14 23:28:55,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 23:28:55,082 INFO L130 BoogieDeclarations]: Found specification of procedure g [2020-10-14 23:28:55,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 23:28:55,082 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 23:28:55,082 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 23:28:55,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 23:28:55,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 23:28:55,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-14 23:28:55,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-14 23:28:55,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 23:28:55,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 23:28:55,392 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 23:28:55,393 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-14 23:28:55,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:28:55 BoogieIcfgContainer [2020-10-14 23:28:55,398 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 23:28:55,399 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 23:28:55,399 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 23:28:55,407 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 23:28:55,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:28:54" (1/3) ... [2020-10-14 23:28:55,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c81b624 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:28:55, skipping insertion in model container [2020-10-14 23:28:55,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:28:54" (2/3) ... [2020-10-14 23:28:55,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c81b624 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:28:55, skipping insertion in model container [2020-10-14 23:28:55,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:28:55" (3/3) ... [2020-10-14 23:28:55,411 INFO L109 eAbstractionObserver]: Analyzing ICFG ex3_forlist.i [2020-10-14 23:28:55,429 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 23:28:55,442 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 23:28:55,459 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 23:28:55,486 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 23:28:55,486 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 23:28:55,486 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 23:28:55,486 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 23:28:55,487 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 23:28:55,487 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 23:28:55,487 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 23:28:55,487 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 23:28:55,510 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states. [2020-10-14 23:28:55,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-14 23:28:55,521 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:28:55,523 INFO L422 BasicCegarLoop]: trace histogram [2, 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] [2020-10-14 23:28:55,523 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:28:55,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:28:55,528 INFO L82 PathProgramCache]: Analyzing trace with hash 1451885248, now seen corresponding path program 1 times [2020-10-14 23:28:55,537 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:28:55,538 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [210014184] [2020-10-14 23:28:55,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:28:55,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:28:55,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:28:55,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:28:55,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:28:56,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:28:56,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:28:57,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:28:57,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-14 23:28:57,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 23:28:57,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1818 [2020-10-14 23:28:57,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:28:57,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:28:57,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-14 23:28:57,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 23:28:57,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-14 23:28:57,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-14 23:28:57,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:28:57,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:28:57,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:28:57,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:28:57,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:28:57,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:28:57,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 23:28:57,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:28:57,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:28:57,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:28:57,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:28:57,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 23:28:57,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:28:57,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 23:28:57,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:28:57,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:28:57,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:28:57,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:28:57,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:28:57,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:28:57,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 23:28:57,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:28:57,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:28:57,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 23:28:57,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:28:57,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 23:28:57,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:28:57,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-14 23:28:57,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:28:57,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:28:57,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:28:57,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:28:57,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:28:57,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 23:28:57,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:28:57,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:28:57,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:28:57,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:28:57,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:28:57,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:28:57,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 23:28:57,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:28:57,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:28:57,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:28:57,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:28:57,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:28:57,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 23:28:57,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:28:57,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:28:57,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:28:57,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:28:57,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:28:57,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:28:57,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 23:28:57,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:28:57,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:28:57,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:28:57,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:28:57,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:28:57,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:28:57,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 23:28:57,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:28:57,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:28:57,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 23:28:57,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:28:57,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 23:28:57,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:28:57,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 23:28:57,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:28:58,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:28:58,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:28:58,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:28:58,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:28:58,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:28:58,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 23:28:58,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:28:58,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:28:58,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 23:28:58,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:28:58,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 23:28:58,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:28:58,049 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-14 23:28:58,050 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [210014184] [2020-10-14 23:28:58,053 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:28:58,054 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-14 23:28:58,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319750382] [2020-10-14 23:28:58,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 23:28:58,062 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:28:58,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 23:28:58,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-14 23:28:58,082 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 11 states. [2020-10-14 23:28:59,207 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-10-14 23:28:59,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:28:59,486 INFO L93 Difference]: Finished difference Result 145 states and 207 transitions. [2020-10-14 23:28:59,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 23:28:59,488 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 39 [2020-10-14 23:28:59,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:28:59,507 INFO L225 Difference]: With dead ends: 145 [2020-10-14 23:28:59,508 INFO L226 Difference]: Without dead ends: 93 [2020-10-14 23:28:59,514 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2020-10-14 23:28:59,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-10-14 23:28:59,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 81. [2020-10-14 23:28:59,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-10-14 23:28:59,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 102 transitions. [2020-10-14 23:28:59,641 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 102 transitions. Word has length 39 [2020-10-14 23:28:59,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:28:59,642 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 102 transitions. [2020-10-14 23:28:59,642 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 23:28:59,642 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 102 transitions. [2020-10-14 23:28:59,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-14 23:28:59,649 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:28:59,649 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, 1, 1] [2020-10-14 23:28:59,650 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 23:28:59,651 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:28:59,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:28:59,651 INFO L82 PathProgramCache]: Analyzing trace with hash -1646655302, now seen corresponding path program 1 times [2020-10-14 23:28:59,652 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:28:59,652 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2120309953] [2020-10-14 23:28:59,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:28:59,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:28:59,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:28:59,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:28:59,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:00,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:00,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:00,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:02,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:02,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-14 23:29:02,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 23:29:02,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2785 [2020-10-14 23:29:02,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:02,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:02,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-14 23:29:02,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 23:29:02,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-14 23:29:02,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:29:02,509 ERROR L253 erpolLogProxyWrapper]: Symbol error in Interpolant 10: A-local: [], B-local: [(g_~i~2_34 Int)]. [2020-10-14 23:29:02,511 ERROR L253 erpolLogProxyWrapper]: Interpolant 10 not inductive [2020-10-14 23:29:02,512 ERROR L253 erpolLogProxyWrapper]: Symbol error in Interpolant 11: A-local: [], B-local: [(g_~i~2_34 Int)]. [2020-10-14 23:29:02,515 ERROR L253 erpolLogProxyWrapper]: Interpolant 12 not inductive [2020-10-14 23:29:02,517 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 23:29:02,518 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.smtinterpol.muses.MusEnumerationScript.getInterpolants(MusEnumerationScript.java:155) at de.uni_freiburg.informatik.ultimate.smtinterpol.muses.MusEnumerationScript.getInterpolants(MusEnumerationScript.java:256) at de.uni_freiburg.informatik.ultimate.smtinterpol.muses.MusEnumerationScript.getInterpolants(MusEnumerationScript.java:150) 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) [2020-10-14 23:29:02,524 INFO L168 Benchmark]: Toolchain (without parser) took 7889.25 ms. Allocated memory was 148.4 MB in the beginning and 296.7 MB in the end (delta: 148.4 MB). Free memory was 102.9 MB in the beginning and 175.2 MB in the end (delta: -72.3 MB). Peak memory consumption was 150.3 MB. Max. memory is 7.1 GB. [2020-10-14 23:29:02,525 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 148.4 MB. Free memory was 121.7 MB in the beginning and 121.2 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-14 23:29:02,526 INFO L168 Benchmark]: CACSL2BoogieTranslator took 332.17 ms. Allocated memory was 148.4 MB in the beginning and 204.5 MB in the end (delta: 56.1 MB). Free memory was 102.9 MB in the beginning and 183.1 MB in the end (delta: -80.3 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2020-10-14 23:29:02,527 INFO L168 Benchmark]: Boogie Preprocessor took 45.75 ms. Allocated memory is still 204.5 MB. Free memory was 183.1 MB in the beginning and 181.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2020-10-14 23:29:02,529 INFO L168 Benchmark]: RCFGBuilder took 384.19 ms. Allocated memory is still 204.5 MB. Free memory was 181.0 MB in the beginning and 159.5 MB in the end (delta: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. [2020-10-14 23:29:02,530 INFO L168 Benchmark]: TraceAbstraction took 7122.33 ms. Allocated memory was 204.5 MB in the beginning and 296.7 MB in the end (delta: 92.3 MB). Free memory was 158.6 MB in the beginning and 175.2 MB in the end (delta: -16.6 MB). Peak memory consumption was 149.9 MB. Max. memory is 7.1 GB. [2020-10-14 23:29:02,535 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 148.4 MB. Free memory was 121.7 MB in the beginning and 121.2 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 332.17 ms. Allocated memory was 148.4 MB in the beginning and 204.5 MB in the end (delta: 56.1 MB). Free memory was 102.9 MB in the beginning and 183.1 MB in the end (delta: -80.3 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 45.75 ms. Allocated memory is still 204.5 MB. Free memory was 183.1 MB in the beginning and 181.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 384.19 ms. Allocated memory is still 204.5 MB. Free memory was 181.0 MB in the beginning and 159.5 MB in the end (delta: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 7122.33 ms. Allocated memory was 204.5 MB in the beginning and 296.7 MB in the end (delta: 92.3 MB). Free memory was 158.6 MB in the beginning and 175.2 MB in the end (delta: -16.6 MB). Peak memory consumption was 149.9 MB. 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...