/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/callfpointer.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 17:13:56,110 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 17:13:56,112 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 17:13:56,127 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 17:13:56,127 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 17:13:56,129 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 17:13:56,130 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 17:13:56,132 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 17:13:56,134 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 17:13:56,135 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 17:13:56,136 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 17:13:56,138 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 17:13:56,138 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 17:13:56,139 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 17:13:56,140 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 17:13:56,142 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 17:13:56,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 17:13:56,144 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 17:13:56,146 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 17:13:56,148 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 17:13:56,150 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 17:13:56,151 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 17:13:56,152 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 17:13:56,153 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 17:13:56,156 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 17:13:56,157 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 17:13:56,157 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 17:13:56,158 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 17:13:56,158 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 17:13:56,159 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 17:13:56,160 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 17:13:56,160 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 17:13:56,161 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 17:13:56,162 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 17:13:56,163 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 17:13:56,164 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 17:13:56,164 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 17:13:56,165 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 17:13:56,165 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 17:13:56,166 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 17:13:56,167 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 17:13:56,168 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 17:13:56,184 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 17:13:56,185 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 17:13:56,186 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 17:13:56,186 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 17:13:56,187 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 17:13:56,187 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 17:13:56,187 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 17:13:56,187 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 17:13:56,187 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 17:13:56,188 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 17:13:56,188 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 17:13:56,188 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 17:13:56,188 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 17:13:56,188 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 17:13:56,189 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 17:13:56,189 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 17:13:56,189 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 17:13:56,189 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 17:13:56,189 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 17:13:56,190 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 17:13:56,190 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 17:13:56,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 17:13:56,190 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 17:13:56,190 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 17:13:56,191 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 17:13:56,191 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 17:13:56,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:13:56,191 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 17:13:56,192 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 17:13:56,192 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 -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 17:13:56,530 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 17:13:56,555 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 17:13:56,559 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 17:13:56,563 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 17:13:56,564 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 17:13:56,565 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/callfpointer.i [2020-07-20 17:13:56,660 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3b9e0bc6/a5fc9edd6d394167a6450d20d03c112a/FLAG11cc2db7f [2020-07-20 17:13:57,250 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 17:13:57,251 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/callfpointer.i [2020-07-20 17:13:57,261 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3b9e0bc6/a5fc9edd6d394167a6450d20d03c112a/FLAG11cc2db7f [2020-07-20 17:13:57,598 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3b9e0bc6/a5fc9edd6d394167a6450d20d03c112a [2020-07-20 17:13:57,610 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 17:13:57,613 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 17:13:57,614 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 17:13:57,614 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 17:13:57,618 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 17:13:57,619 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:13:57" (1/1) ... [2020-07-20 17:13:57,623 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@412e4f7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:13:57, skipping insertion in model container [2020-07-20 17:13:57,623 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:13:57" (1/1) ... [2020-07-20 17:13:57,633 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 17:13:57,654 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 17:13:57,841 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:13:57,849 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 17:13:57,865 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:13:57,881 INFO L208 MainTranslator]: Completed translation [2020-07-20 17:13:57,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:13:57 WrapperNode [2020-07-20 17:13:57,881 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 17:13:57,883 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 17:13:57,883 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 17:13:57,883 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 17:13:57,898 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:13:57" (1/1) ... [2020-07-20 17:13:57,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:13:57" (1/1) ... [2020-07-20 17:13:57,905 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:13:57" (1/1) ... [2020-07-20 17:13:57,905 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:13:57" (1/1) ... [2020-07-20 17:13:57,909 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:13:57" (1/1) ... [2020-07-20 17:13:57,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:13:57" (1/1) ... [2020-07-20 17:13:57,912 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:13:57" (1/1) ... [2020-07-20 17:13:57,913 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 17:13:57,914 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 17:13:57,914 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 17:13:57,914 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 17:13:57,915 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:13:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-07-20 17:13:58,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 17:13:58,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 17:13:58,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2020-07-20 17:13:58,096 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-07-20 17:13:58,096 INFO L138 BoogieDeclarations]: Found implementation of procedure h [2020-07-20 17:13:58,096 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 17:13:58,097 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 17:13:58,097 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-07-20 17:13:58,097 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2020-07-20 17:13:58,097 INFO L130 BoogieDeclarations]: Found specification of procedure h [2020-07-20 17:13:58,098 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 17:13:58,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 17:13:58,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 17:13:58,263 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 17:13:58,264 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-20 17:13:58,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:13:58 BoogieIcfgContainer [2020-07-20 17:13:58,269 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 17:13:58,271 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 17:13:58,271 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 17:13:58,276 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 17:13:58,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 05:13:57" (1/3) ... [2020-07-20 17:13:58,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@555146e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:13:58, skipping insertion in model container [2020-07-20 17:13:58,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:13:57" (2/3) ... [2020-07-20 17:13:58,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@555146e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:13:58, skipping insertion in model container [2020-07-20 17:13:58,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:13:58" (3/3) ... [2020-07-20 17:13:58,282 INFO L109 eAbstractionObserver]: Analyzing ICFG callfpointer.i [2020-07-20 17:13:58,295 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 17:13:58,306 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 17:13:58,326 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 17:13:58,401 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 17:13:58,401 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 17:13:58,402 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 17:13:58,402 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 17:13:58,405 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 17:13:58,406 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 17:13:58,406 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 17:13:58,406 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 17:13:58,460 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-07-20 17:13:58,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-20 17:13:58,476 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:13:58,481 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:13:58,482 INFO L427 AbstractCegarLoop]: === Iteration 1 === [hErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:13:58,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:13:58,492 INFO L82 PathProgramCache]: Analyzing trace with hash 1027422766, now seen corresponding path program 1 times [2020-07-20 17:13:58,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:13:58,504 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1717828385] [2020-07-20 17:13:58,506 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:13:58,612 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:13:58,612 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-20 17:13:58,613 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 17:13:58,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 17:13:58,624 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 17:13:58,650 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-20 17:13:58,651 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 17:13:58,865 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:13:58,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 05:13:58 BoogieIcfgContainer [2020-07-20 17:13:58,888 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 17:13:58,891 INFO L168 Benchmark]: Toolchain (without parser) took 1279.04 ms. Allocated memory was 138.4 MB in the beginning and 199.2 MB in the end (delta: 60.8 MB). Free memory was 98.9 MB in the beginning and 152.4 MB in the end (delta: -53.6 MB). Peak memory consumption was 7.3 MB. Max. memory is 7.1 GB. [2020-07-20 17:13:58,892 INFO L168 Benchmark]: CDTParser took 0.63 ms. Allocated memory is still 138.4 MB. Free memory was 117.5 MB in the beginning and 117.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-20 17:13:58,893 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.77 ms. Allocated memory is still 138.4 MB. Free memory was 98.5 MB in the beginning and 89.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2020-07-20 17:13:58,894 INFO L168 Benchmark]: Boogie Preprocessor took 31.00 ms. Allocated memory is still 138.4 MB. Free memory was 89.3 MB in the beginning and 87.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-07-20 17:13:58,895 INFO L168 Benchmark]: RCFGBuilder took 355.22 ms. Allocated memory was 138.4 MB in the beginning and 199.2 MB in the end (delta: 60.8 MB). Free memory was 87.9 MB in the beginning and 167.2 MB in the end (delta: -79.3 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-07-20 17:13:58,896 INFO L168 Benchmark]: TraceAbstraction took 617.57 ms. Allocated memory is still 199.2 MB. Free memory was 166.5 MB in the beginning and 152.4 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2020-07-20 17:13:58,901 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63 ms. Allocated memory is still 138.4 MB. Free memory was 117.5 MB in the beginning and 117.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 267.77 ms. Allocated memory is still 138.4 MB. Free memory was 98.5 MB in the beginning and 89.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.00 ms. Allocated memory is still 138.4 MB. Free memory was 89.3 MB in the beginning and 87.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 355.22 ms. Allocated memory was 138.4 MB in the beginning and 199.2 MB in the end (delta: 60.8 MB). Free memory was 87.9 MB in the beginning and 167.2 MB in the end (delta: -79.3 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 617.57 ms. Allocated memory is still 199.2 MB. Free memory was 166.5 MB in the beginning and 152.4 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 14]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L20] CALL f(h) VAL [g={-1:0}] [L9] CALL g(1) [L13] COND TRUE i==1 VAL [\old(i)=1, i=1] [L14] __VERIFIER_error() VAL [\old(i)=1, i=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...