/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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/array-fpi/indp1f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 23:51:02,576 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 23:51:02,580 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 23:51:02,623 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 23:51:02,623 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 23:51:02,631 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 23:51:02,633 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 23:51:02,637 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 23:51:02,640 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 23:51:02,643 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 23:51:02,644 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 23:51:02,645 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 23:51:02,645 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 23:51:02,648 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 23:51:02,650 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 23:51:02,652 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 23:51:02,653 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 23:51:02,654 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 23:51:02,656 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 23:51:02,664 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 23:51:02,666 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 23:51:02,667 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 23:51:02,668 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 23:51:02,669 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 23:51:02,681 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 23:51:02,681 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 23:51:02,682 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 23:51:02,688 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 23:51:02,688 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 23:51:02,689 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 23:51:02,689 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 23:51:02,693 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 23:51:02,693 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 23:51:02,694 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 23:51:02,698 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 23:51:02,699 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 23:51:02,699 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 23:51:02,700 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 23:51:02,700 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 23:51:02,702 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 23:51:02,702 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 23:51:02,706 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 [2020-10-13 23:51:02,728 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 23:51:02,728 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 23:51:02,731 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 23:51:02,732 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 23:51:02,732 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 23:51:02,732 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 23:51:02,732 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 23:51:02,733 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 23:51:02,733 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 23:51:02,733 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 23:51:02,733 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 23:51:02,733 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 23:51:02,734 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 23:51:02,734 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 23:51:02,734 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 23:51:02,734 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 23:51:02,734 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 23:51:02,735 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 23:51:02,735 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 23:51:02,735 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 23:51:02,735 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 23:51:02,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 23:51:02,736 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 23:51:02,736 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 23:51:02,736 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 23:51:02,736 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 23:51:02,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 23:51:02,737 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 23:51:02,737 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 23:51:02,737 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-13 23:51:03,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 23:51:03,098 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 23:51:03,102 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 23:51:03,103 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 23:51:03,106 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 23:51:03,106 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/indp1f.c [2020-10-13 23:51:03,168 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cee9acacc/1140c49215a947a2afbbbf5b13b04b37/FLAG8d17d30be [2020-10-13 23:51:03,623 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 23:51:03,624 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/indp1f.c [2020-10-13 23:51:03,631 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cee9acacc/1140c49215a947a2afbbbf5b13b04b37/FLAG8d17d30be [2020-10-13 23:51:03,979 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cee9acacc/1140c49215a947a2afbbbf5b13b04b37 [2020-10-13 23:51:03,989 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 23:51:03,991 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 23:51:03,994 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 23:51:03,994 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 23:51:03,998 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 23:51:03,999 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:51:03" (1/1) ... [2020-10-13 23:51:04,002 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1604f3be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:51:03, skipping insertion in model container [2020-10-13 23:51:04,002 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:51:03" (1/1) ... [2020-10-13 23:51:04,010 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 23:51:04,029 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 23:51:04,209 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 23:51:04,221 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 23:51:04,243 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 23:51:04,260 INFO L208 MainTranslator]: Completed translation [2020-10-13 23:51:04,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:51:04 WrapperNode [2020-10-13 23:51:04,261 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 23:51:04,262 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 23:51:04,262 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 23:51:04,262 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 23:51:04,369 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:51:04" (1/1) ... [2020-10-13 23:51:04,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:51:04" (1/1) ... [2020-10-13 23:51:04,380 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:51:04" (1/1) ... [2020-10-13 23:51:04,381 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:51:04" (1/1) ... [2020-10-13 23:51:04,388 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:51:04" (1/1) ... [2020-10-13 23:51:04,395 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:51:04" (1/1) ... [2020-10-13 23:51:04,397 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:51:04" (1/1) ... [2020-10-13 23:51:04,399 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 23:51:04,400 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 23:51:04,400 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 23:51:04,400 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 23:51:04,401 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:51:04" (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 [2020-10-13 23:51:04,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 23:51:04,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 23:51:04,473 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 23:51:04,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-13 23:51:04,473 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 23:51:04,474 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 23:51:04,474 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 23:51:04,474 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 23:51:04,474 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-13 23:51:04,474 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 23:51:04,474 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 23:51:04,475 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 23:51:04,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 23:51:04,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 23:51:04,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 23:51:04,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 23:51:04,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 23:51:04,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 23:51:04,747 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 23:51:04,747 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-13 23:51:04,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:51:04 BoogieIcfgContainer [2020-10-13 23:51:04,753 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 23:51:04,754 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 23:51:04,755 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 23:51:04,758 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 23:51:04,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:51:03" (1/3) ... [2020-10-13 23:51:04,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2602b3cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:51:04, skipping insertion in model container [2020-10-13 23:51:04,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:51:04" (2/3) ... [2020-10-13 23:51:04,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2602b3cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:51:04, skipping insertion in model container [2020-10-13 23:51:04,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:51:04" (3/3) ... [2020-10-13 23:51:04,762 INFO L109 eAbstractionObserver]: Analyzing ICFG indp1f.c [2020-10-13 23:51:04,775 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 23:51:04,786 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 23:51:04,819 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 23:51:04,863 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 23:51:04,863 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 23:51:04,863 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 23:51:04,864 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 23:51:04,864 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 23:51:04,864 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 23:51:04,864 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 23:51:04,865 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 23:51:04,885 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-10-13 23:51:04,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-13 23:51:04,891 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:51:04,892 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:51:04,892 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:51:04,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:51:04,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1155719453, now seen corresponding path program 1 times [2020-10-13 23:51:04,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:51:04,906 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1323031639] [2020-10-13 23:51:04,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:51:05,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:51:05,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:05,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:05,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:05,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:05,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:05,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:05,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:05,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:51:05,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 23:51:05,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 23:51:05,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 888 [2020-10-13 23:51:05,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:51:05,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:51:05,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:51:05,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 23:51:05,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:51:05,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 23:51:05,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:51:05,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:51:05,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:05,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:51:05,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:51:05,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:51:05,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:51:05,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:51:05,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:51:05,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:51:05,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:51:05,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:51:05,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:51:05,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 23:51:05,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:51:05,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:05,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:51:05,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:51:05,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:51:05,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:51:05,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:51:05,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:51:05,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:51:05,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 23:51:05,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:51:05,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:51:05,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 23:51:05,996 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1323031639] [2020-10-13 23:51:05,998 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 23:51:05,999 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 23:51:06,000 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981253588] [2020-10-13 23:51:06,006 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 23:51:06,006 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:51:06,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 23:51:06,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 23:51:06,025 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 3 states. [2020-10-13 23:51:06,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:51:06,130 INFO L93 Difference]: Finished difference Result 64 states and 83 transitions. [2020-10-13 23:51:06,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 23:51:06,132 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-10-13 23:51:06,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:51:06,141 INFO L225 Difference]: With dead ends: 64 [2020-10-13 23:51:06,141 INFO L226 Difference]: Without dead ends: 32 [2020-10-13 23:51:06,145 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 23:51:06,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-13 23:51:06,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-10-13 23:51:06,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-13 23:51:06,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2020-10-13 23:51:06,188 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 24 [2020-10-13 23:51:06,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:51:06,189 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2020-10-13 23:51:06,189 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 23:51:06,189 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2020-10-13 23:51:06,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-13 23:51:06,190 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:51:06,191 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:51:06,191 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 23:51:06,191 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:51:06,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:51:06,192 INFO L82 PathProgramCache]: Analyzing trace with hash -124144225, now seen corresponding path program 1 times [2020-10-13 23:51:06,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:51:06,193 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1470400413] [2020-10-13 23:51:06,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:51:06,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:51:06,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:06,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:06,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:06,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:06,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:06,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:06,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:51:06,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 23:51:06,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 23:51:06,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 560 [2020-10-13 23:51:06,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:51:06,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:51:06,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 23:51:06,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 23:51:06,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 23:51:06,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 23:51:06,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:51:06,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:51:06,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:06,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:51:06,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:51:06,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:51:06,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:51:06,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:51:06,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:51:06,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:51:06,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:51:06,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:51:06,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:51:06,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 23:51:06,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:51:06,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:51:06,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:51:06,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:51:06,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:51:06,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:51:06,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:51:06,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:51:06,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:51:06,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:51:06,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:51:06,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:51:06,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 23:51:06,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1470400413] [2020-10-13 23:51:06,844 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 23:51:06,844 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 23:51:06,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484360467] [2020-10-13 23:51:06,846 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 23:51:06,847 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:51:06,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 23:51:06,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 23:51:06,848 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand 5 states. [2020-10-13 23:51:06,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:51:06,996 INFO L93 Difference]: Finished difference Result 53 states and 61 transitions. [2020-10-13 23:51:06,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 23:51:06,996 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-10-13 23:51:06,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:51:06,998 INFO L225 Difference]: With dead ends: 53 [2020-10-13 23:51:06,998 INFO L226 Difference]: Without dead ends: 36 [2020-10-13 23:51:06,999 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 23:51:07,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-13 23:51:07,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2020-10-13 23:51:07,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-13 23:51:07,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2020-10-13 23:51:07,010 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 24 [2020-10-13 23:51:07,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:51:07,011 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2020-10-13 23:51:07,011 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 23:51:07,011 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2020-10-13 23:51:07,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-13 23:51:07,012 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:51:07,013 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:51:07,013 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 23:51:07,013 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:51:07,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:51:07,014 INFO L82 PathProgramCache]: Analyzing trace with hash -191015719, now seen corresponding path program 1 times [2020-10-13 23:51:07,014 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:51:07,014 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [310941041] [2020-10-13 23:51:07,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:51:07,025 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-13 23:51:07,025 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-10-13 23:51:07,025 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 23:51:07,030 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 23:51:07,049 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-13 23:51:07,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 11:51:07 BoogieIcfgContainer [2020-10-13 23:51:07,049 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 23:51:07,052 INFO L168 Benchmark]: Toolchain (without parser) took 3060.28 ms. Allocated memory was 147.8 MB in the beginning and 243.8 MB in the end (delta: 95.9 MB). Free memory was 104.0 MB in the beginning and 185.6 MB in the end (delta: -81.6 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. [2020-10-13 23:51:07,053 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 23:51:07,054 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.72 ms. Allocated memory is still 147.8 MB. Free memory was 103.8 MB in the beginning and 93.4 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-10-13 23:51:07,055 INFO L168 Benchmark]: Boogie Preprocessor took 137.58 ms. Allocated memory was 147.8 MB in the beginning and 205.5 MB in the end (delta: 57.7 MB). Free memory was 93.4 MB in the beginning and 183.0 MB in the end (delta: -89.6 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2020-10-13 23:51:07,056 INFO L168 Benchmark]: RCFGBuilder took 353.53 ms. Allocated memory is still 205.5 MB. Free memory was 183.0 MB in the beginning and 165.5 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 7.1 GB. [2020-10-13 23:51:07,057 INFO L168 Benchmark]: TraceAbstraction took 2294.82 ms. Allocated memory was 205.5 MB in the beginning and 243.8 MB in the end (delta: 38.3 MB). Free memory was 165.5 MB in the beginning and 185.6 MB in the end (delta: -20.1 MB). Peak memory consumption was 18.2 MB. Max. memory is 7.1 GB. [2020-10-13 23:51:07,061 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 267.72 ms. Allocated memory is still 147.8 MB. Free memory was 103.8 MB in the beginning and 93.4 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 137.58 ms. Allocated memory was 147.8 MB in the beginning and 205.5 MB in the end (delta: 57.7 MB). Free memory was 93.4 MB in the beginning and 183.0 MB in the end (delta: -89.6 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 353.53 ms. Allocated memory is still 205.5 MB. Free memory was 183.0 MB in the beginning and 165.5 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2294.82 ms. Allocated memory was 205.5 MB in the beginning and 243.8 MB in the end (delta: 38.3 MB). Free memory was 165.5 MB in the beginning and 185.6 MB in the end (delta: -20.1 MB). Peak memory consumption was 18.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 13]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L17] int N; [L21] N = __VERIFIER_nondet_int() [L22] COND FALSE !(N <= 0) [L23] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L11] COND FALSE !(!cond) [L23] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L25] int i; [L26] long long *a = malloc(sizeof(long long)*N); [L28] i=0 [L28] COND TRUE i