/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/array-programs/partial_mod_count_limited_2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 18:25:31,060 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 18:25:31,063 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 18:25:31,086 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 18:25:31,086 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 18:25:31,087 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 18:25:31,089 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 18:25:31,091 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 18:25:31,092 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 18:25:31,093 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 18:25:31,094 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 18:25:31,095 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 18:25:31,096 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 18:25:31,097 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 18:25:31,098 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 18:25:31,099 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 18:25:31,100 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 18:25:31,100 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 18:25:31,102 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 18:25:31,104 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 18:25:31,108 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 18:25:31,111 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 18:25:31,113 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 18:25:31,114 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 18:25:31,117 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 18:25:31,120 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 18:25:31,120 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 18:25:31,123 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 18:25:31,123 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 18:25:31,126 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 18:25:31,126 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 18:25:31,127 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 18:25:31,128 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 18:25:31,129 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 18:25:31,131 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 18:25:31,131 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 18:25:31,132 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 18:25:31,132 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 18:25:31,132 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 18:25:31,133 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 18:25:31,136 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 18:25:31,136 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 18:25:31,179 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 18:25:31,180 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 18:25:31,181 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 18:25:31,181 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 18:25:31,181 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 18:25:31,182 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 18:25:31,182 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 18:25:31,182 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 18:25:31,182 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 18:25:31,182 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 18:25:31,183 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 18:25:31,183 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 18:25:31,183 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 18:25:31,183 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 18:25:31,183 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 18:25:31,184 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 18:25:31,184 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 18:25:31,184 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 18:25:31,184 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 18:25:31,184 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 18:25:31,185 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 18:25:31,185 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 18:25:31,185 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 18:25:31,185 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 18:25:31,185 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 18:25:31,186 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 18:25:31,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 18:25:31,186 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 18:25:31,186 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 18:25:31,186 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 18:25:31,527 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 18:25:31,548 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 18:25:31,552 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 18:25:31,554 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 18:25:31,555 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 18:25:31,555 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-programs/partial_mod_count_limited_2.c [2020-10-14 18:25:31,616 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/de2b6121d/d181be635f114ee7b0d2541feff58640/FLAG470c31125 [2020-10-14 18:25:32,031 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 18:25:32,031 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-programs/partial_mod_count_limited_2.c [2020-10-14 18:25:32,038 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/de2b6121d/d181be635f114ee7b0d2541feff58640/FLAG470c31125 [2020-10-14 18:25:32,451 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/de2b6121d/d181be635f114ee7b0d2541feff58640 [2020-10-14 18:25:32,460 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 18:25:32,462 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 18:25:32,463 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 18:25:32,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 18:25:32,467 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 18:25:32,468 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 06:25:32" (1/1) ... [2020-10-14 18:25:32,471 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6266eb80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:25:32, skipping insertion in model container [2020-10-14 18:25:32,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 06:25:32" (1/1) ... [2020-10-14 18:25:32,479 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 18:25:32,500 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 18:25:32,692 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 18:25:32,696 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 18:25:32,725 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 18:25:32,853 INFO L208 MainTranslator]: Completed translation [2020-10-14 18:25:32,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:25:32 WrapperNode [2020-10-14 18:25:32,854 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 18:25:32,855 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 18:25:32,855 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 18:25:32,855 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 18:25:32,872 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:25:32" (1/1) ... [2020-10-14 18:25:32,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:25:32" (1/1) ... [2020-10-14 18:25:32,893 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:25:32" (1/1) ... [2020-10-14 18:25:32,894 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:25:32" (1/1) ... [2020-10-14 18:25:32,913 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:25:32" (1/1) ... [2020-10-14 18:25:32,920 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:25:32" (1/1) ... [2020-10-14 18:25:32,928 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:25:32" (1/1) ... [2020-10-14 18:25:32,935 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 18:25:32,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 18:25:32,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 18:25:32,938 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 18:25:32,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:25:32" (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 18:25:33,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 18:25:33,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 18:25:33,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-14 18:25:33,017 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 18:25:33,017 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 18:25:33,017 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 18:25:33,017 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-14 18:25:33,018 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 18:25:33,018 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 18:25:33,018 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 18:25:33,018 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 18:25:33,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 18:25:33,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 18:25:33,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 18:25:33,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 18:25:33,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 18:25:33,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 18:25:33,313 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 18:25:33,313 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-14 18:25:33,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:25:33 BoogieIcfgContainer [2020-10-14 18:25:33,318 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 18:25:33,320 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 18:25:33,320 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 18:25:33,323 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 18:25:33,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 06:25:32" (1/3) ... [2020-10-14 18:25:33,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14b4bd19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 06:25:33, skipping insertion in model container [2020-10-14 18:25:33,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:25:32" (2/3) ... [2020-10-14 18:25:33,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14b4bd19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 06:25:33, skipping insertion in model container [2020-10-14 18:25:33,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:25:33" (3/3) ... [2020-10-14 18:25:33,327 INFO L109 eAbstractionObserver]: Analyzing ICFG partial_mod_count_limited_2.c [2020-10-14 18:25:33,339 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 18:25:33,346 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 18:25:33,361 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 18:25:33,395 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 18:25:33,398 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 18:25:33,398 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 18:25:33,398 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 18:25:33,399 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 18:25:33,399 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 18:25:33,399 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 18:25:33,399 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 18:25:33,429 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-10-14 18:25:33,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-14 18:25:33,436 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:25:33,437 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 18:25:33,438 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:25:33,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:25:33,445 INFO L82 PathProgramCache]: Analyzing trace with hash -113598078, now seen corresponding path program 1 times [2020-10-14 18:25:33,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:25:33,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1148746050] [2020-10-14 18:25:33,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:25:33,568 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-14 18:25:33,569 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-10-14 18:25:33,570 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 18:25:33,575 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 18:25:33,592 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-14 18:25:33,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 06:25:33 BoogieIcfgContainer [2020-10-14 18:25:33,593 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 18:25:33,597 INFO L168 Benchmark]: Toolchain (without parser) took 1133.67 ms. Allocated memory was 146.8 MB in the beginning and 205.0 MB in the end (delta: 58.2 MB). Free memory was 102.7 MB in the beginning and 151.6 MB in the end (delta: -48.9 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-10-14 18:25:33,598 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-14 18:25:33,599 INFO L168 Benchmark]: CACSL2BoogieTranslator took 391.67 ms. Allocated memory was 146.8 MB in the beginning and 205.0 MB in the end (delta: 58.2 MB). Free memory was 102.7 MB in the beginning and 183.6 MB in the end (delta: -80.8 MB). Peak memory consumption was 19.7 MB. Max. memory is 7.1 GB. [2020-10-14 18:25:33,602 INFO L168 Benchmark]: Boogie Preprocessor took 80.69 ms. Allocated memory is still 205.0 MB. Free memory was 183.6 MB in the beginning and 181.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2020-10-14 18:25:33,603 INFO L168 Benchmark]: RCFGBuilder took 381.06 ms. Allocated memory is still 205.0 MB. Free memory was 181.3 MB in the beginning and 164.1 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 7.1 GB. [2020-10-14 18:25:33,604 INFO L168 Benchmark]: TraceAbstraction took 273.46 ms. Allocated memory is still 205.0 MB. Free memory was 163.2 MB in the beginning and 151.6 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2020-10-14 18:25:33,608 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 391.67 ms. Allocated memory was 146.8 MB in the beginning and 205.0 MB in the end (delta: 58.2 MB). Free memory was 102.7 MB in the beginning and 183.6 MB in the end (delta: -80.8 MB). Peak memory consumption was 19.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 80.69 ms. Allocated memory is still 205.0 MB. Free memory was 183.6 MB in the beginning and 181.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 381.06 ms. Allocated memory is still 205.0 MB. Free memory was 181.3 MB in the beginning and 164.1 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 273.46 ms. Allocated memory is still 205.0 MB. Free memory was 163.2 MB in the beginning and 151.6 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 2]: 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: [L8] int N = 1000; [L10] int i,j=0,k=0,a[N]; [L11] int lim=__VERIFIER_nondet_int(); [L12] unsigned int R=2; [L13] CALL assume_abort_if_not(0 < lim && lim < N/R) [L5] COND TRUE !cond [L13] RET assume_abort_if_not(0 < lim && lim < N/R) [L14] i=0 [L14] COND FALSE !(i