/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 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 17:09:41,622 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 17:09:41,627 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 17:09:41,650 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 17:09:41,651 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 17:09:41,653 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 17:09:41,655 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 17:09:41,659 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 17:09:41,662 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 17:09:41,664 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 17:09:41,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 17:09:41,668 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 17:09:41,669 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 17:09:41,673 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 17:09:41,675 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 17:09:41,681 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 17:09:41,687 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 17:09:41,690 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 17:09:41,697 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 17:09:41,708 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 17:09:41,714 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 17:09:41,721 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 17:09:41,723 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 17:09:41,727 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 17:09:41,733 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 17:09:41,755 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 17:09:41,757 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 17:09:41,760 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 17:09:41,762 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 [2020-07-21 17:09:41,820 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 17:09:41,820 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 17:09:41,825 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 17:09:41,830 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 17:09:41,830 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 17:09:41,831 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 17:09:41,831 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 17:09:41,831 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 17:09:41,832 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 17:09:41,832 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 17:09:41,832 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 17:09:41,833 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 17:09:41,833 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 17:09:41,833 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 17:09:41,836 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 17:09:41,837 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 17:09:41,837 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 17:09:41,837 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 17:09:41,837 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 17:09:41,838 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 17:09:41,838 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 17:09:41,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 17:09:41,839 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 17:09:41,840 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 17:09:41,840 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 17:09:41,841 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 17:09:41,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:09:41,841 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 17:09:41,842 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 17:09:41,842 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 -> 2 [2020-07-21 17:09:42,391 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 17:09:42,432 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 17:09:42,439 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 17:09:42,443 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 17:09:42,444 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 17:09:42,446 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+lhb-reducer.c [2020-07-21 17:09:42,607 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d14bf366f/b84f6ef616684e96b9055cdbe56927c5/FLAG30e706205 [2020-07-21 17:09:43,443 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 17:09:43,445 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+lhb-reducer.c [2020-07-21 17:09:43,461 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d14bf366f/b84f6ef616684e96b9055cdbe56927c5/FLAG30e706205 [2020-07-21 17:09:43,497 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d14bf366f/b84f6ef616684e96b9055cdbe56927c5 [2020-07-21 17:09:43,521 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 17:09:43,527 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 17:09:43,529 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 17:09:43,530 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 17:09:43,537 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 17:09:43,540 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:09:43" (1/1) ... [2020-07-21 17:09:43,546 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d24e66c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:09:43, skipping insertion in model container [2020-07-21 17:09:43,547 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:09:43" (1/1) ... [2020-07-21 17:09:43,564 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 17:09:43,606 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 17:09:44,063 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 17:09:44,075 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 17:09:44,125 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 17:09:44,155 INFO L208 MainTranslator]: Completed translation [2020-07-21 17:09:44,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:09:44 WrapperNode [2020-07-21 17:09:44,160 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 17:09:44,162 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 17:09:44,163 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 17:09:44,163 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 17:09:44,332 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:09:44" (1/1) ... [2020-07-21 17:09:44,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:09:44" (1/1) ... [2020-07-21 17:09:44,350 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:09:44" (1/1) ... [2020-07-21 17:09:44,351 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:09:44" (1/1) ... [2020-07-21 17:09:44,360 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:09:44" (1/1) ... [2020-07-21 17:09:44,366 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:09:44" (1/1) ... [2020-07-21 17:09:44,369 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:09:44" (1/1) ... [2020-07-21 17:09:44,373 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 17:09:44,374 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 17:09:44,375 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 17:09:44,375 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 17:09:44,377 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:09:44" (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 [2020-07-21 17:09:44,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 17:09:44,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 17:09:44,489 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 17:09:44,490 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 17:09:44,491 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 17:09:44,491 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-21 17:09:44,491 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 17:09:44,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 17:09:44,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 17:09:45,024 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 17:09:45,025 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-21 17:09:45,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:09:45 BoogieIcfgContainer [2020-07-21 17:09:45,032 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 17:09:45,034 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 17:09:45,034 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 17:09:45,040 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 17:09:45,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 05:09:43" (1/3) ... [2020-07-21 17:09:45,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13ec0c71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:09:45, skipping insertion in model container [2020-07-21 17:09:45,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:09:44" (2/3) ... [2020-07-21 17:09:45,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13ec0c71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:09:45, skipping insertion in model container [2020-07-21 17:09:45,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:09:45" (3/3) ... [2020-07-21 17:09:45,048 INFO L109 eAbstractionObserver]: Analyzing ICFG mod3.c.v+lhb-reducer.c [2020-07-21 17:09:45,064 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 17:09:45,077 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 17:09:45,098 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 17:09:45,146 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 17:09:45,146 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 17:09:45,147 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 17:09:45,147 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 17:09:45,147 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 17:09:45,148 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 17:09:45,148 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 17:09:45,148 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 17:09:45,183 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2020-07-21 17:09:45,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-21 17:09:45,194 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:09:45,196 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:09:45,197 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:09:45,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:09:45,207 INFO L82 PathProgramCache]: Analyzing trace with hash 446778609, now seen corresponding path program 1 times [2020-07-21 17:09:45,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:09:45,218 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1612346450] [2020-07-21 17:09:45,219 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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