/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/test09.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 16:40:18,322 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 16:40:18,326 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 16:40:18,351 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 16:40:18,352 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 16:40:18,353 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 16:40:18,355 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 16:40:18,357 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 16:40:18,358 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 16:40:18,359 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 16:40:18,360 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 16:40:18,362 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 16:40:18,362 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 16:40:18,363 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 16:40:18,364 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 16:40:18,366 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 16:40:18,367 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 16:40:18,368 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 16:40:18,369 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 16:40:18,372 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 16:40:18,373 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 16:40:18,374 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 16:40:18,376 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 16:40:18,377 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 16:40:18,379 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-04 16:40:18,389 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 16:40:18,390 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 16:40:18,390 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 16:40:18,391 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 16:40:18,406 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 16:40:18,407 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 16:40:18,410 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 16:40:18,410 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 16:40:18,411 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 16:40:18,411 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 16:40:18,411 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 16:40:18,411 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 16:40:18,411 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 16:40:18,412 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 16:40:18,413 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 16:40:18,413 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 16:40:18,413 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 16:40:18,414 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 16:40:18,414 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 16:40:18,414 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 16:40:18,414 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 16:40:18,415 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 16:40:18,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 16:40:18,415 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 16:40:18,415 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 16:40:18,416 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 16:40:18,416 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 16:40:18,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 16:40:18,877 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 16:40:18,881 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 16:40:18,883 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 16:40:18,884 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 16:40:18,885 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test09.c [2020-09-04 16:40:18,976 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a2a1be334/fca63cafe16b46c7aafd312cee5f69f1/FLAG58c976a9b [2020-09-04 16:40:19,556 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 16:40:19,557 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/test09.c [2020-09-04 16:40:19,567 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a2a1be334/fca63cafe16b46c7aafd312cee5f69f1/FLAG58c976a9b [2020-09-04 16:40:19,872 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a2a1be334/fca63cafe16b46c7aafd312cee5f69f1 [2020-09-04 16:40:19,888 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 16:40:19,891 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 16:40:19,892 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 16:40:19,893 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 16:40:19,898 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 16:40:19,900 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 04:40:19" (1/1) ... [2020-09-04 16:40:19,905 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@182b6a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:19, skipping insertion in model container [2020-09-04 16:40:19,905 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 04:40:19" (1/1) ... [2020-09-04 16:40:19,916 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 16:40:19,944 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 16:40:20,196 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 16:40:20,212 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 16:40:20,230 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 16:40:20,250 INFO L208 MainTranslator]: Completed translation [2020-09-04 16:40:20,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:20 WrapperNode [2020-09-04 16:40:20,251 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 16:40:20,252 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 16:40:20,252 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 16:40:20,252 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 16:40:20,267 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:20" (1/1) ... [2020-09-04 16:40:20,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:20" (1/1) ... [2020-09-04 16:40:20,362 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:20" (1/1) ... [2020-09-04 16:40:20,363 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:20" (1/1) ... [2020-09-04 16:40:20,376 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:20" (1/1) ... [2020-09-04 16:40:20,379 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:20" (1/1) ... [2020-09-04 16:40:20,381 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:20" (1/1) ... [2020-09-04 16:40:20,384 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 16:40:20,385 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 16:40:20,385 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 16:40:20,385 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 16:40:20,387 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:20" (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 [2020-09-04 16:40:20,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 16:40:20,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 16:40:20,476 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-09-04 16:40:20,476 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 16:40:20,476 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 16:40:20,477 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-09-04 16:40:20,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 16:40:20,477 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 16:40:20,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 16:40:20,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 16:40:20,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 16:40:20,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-04 16:40:20,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 16:40:20,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 16:40:20,796 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 16:40:20,796 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-04 16:40:20,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 04:40:20 BoogieIcfgContainer [2020-09-04 16:40:20,805 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 16:40:20,807 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 16:40:20,807 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 16:40:20,812 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 16:40:20,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 04:40:19" (1/3) ... [2020-09-04 16:40:20,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32a0b947 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 04:40:20, skipping insertion in model container [2020-09-04 16:40:20,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:20" (2/3) ... [2020-09-04 16:40:20,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32a0b947 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 04:40:20, skipping insertion in model container [2020-09-04 16:40:20,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 04:40:20" (3/3) ... [2020-09-04 16:40:20,819 INFO L109 eAbstractionObserver]: Analyzing ICFG test09.c [2020-09-04 16:40:20,834 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 16:40:20,847 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 16:40:20,876 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 16:40:20,913 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 16:40:20,914 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 16:40:20,914 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 16:40:20,914 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 16:40:20,914 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 16:40:20,914 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 16:40:20,915 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 16:40:20,915 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 16:40:20,949 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2020-09-04 16:40:20,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-09-04 16:40:20,970 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:40:20,972 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:40:20,973 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:40:20,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:40:20,983 INFO L82 PathProgramCache]: Analyzing trace with hash 19454853, now seen corresponding path program 1 times [2020-09-04 16:40:20,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:40:20,994 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [899440377] [2020-09-04 16:40:20,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:40:21,072 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:40:21,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:40:21,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:40:21,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:40:21,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-04 16:40:21,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:40:21,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:40:22,002 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [899440377] [2020-09-04 16:40:22,006 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:40:22,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-09-04 16:40:22,007 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044168194] [2020-09-04 16:40:22,016 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-04 16:40:22,018 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:40:22,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-04 16:40:22,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-09-04 16:40:22,050 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 15 states. [2020-09-04 16:40:22,671 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2020-09-04 16:40:22,818 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-09-04 16:40:22,982 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2020-09-04 16:40:23,172 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 62 [2020-09-04 16:40:23,366 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 66 [2020-09-04 16:40:23,530 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2020-09-04 16:40:23,694 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2020-09-04 16:40:23,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:40:23,848 INFO L93 Difference]: Finished difference Result 69 states and 70 transitions. [2020-09-04 16:40:23,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-04 16:40:23,851 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 42 [2020-09-04 16:40:23,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:40:23,868 INFO L225 Difference]: With dead ends: 69 [2020-09-04 16:40:23,868 INFO L226 Difference]: Without dead ends: 44 [2020-09-04 16:40:23,874 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=239, Invalid=631, Unknown=0, NotChecked=0, Total=870 [2020-09-04 16:40:23,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-04 16:40:23,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2020-09-04 16:40:23,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-09-04 16:40:23,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 43 transitions. [2020-09-04 16:40:23,946 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 43 transitions. Word has length 42 [2020-09-04 16:40:23,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:40:23,947 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 43 transitions. [2020-09-04 16:40:23,947 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-04 16:40:23,948 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 43 transitions. [2020-09-04 16:40:23,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-04 16:40:23,949 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:40:23,950 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:40:23,950 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 16:40:23,951 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:40:23,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:40:23,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1202217324, now seen corresponding path program 1 times [2020-09-04 16:40:23,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:40:23,952 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [234901317] [2020-09-04 16:40:23,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:40:23,955 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:40:24,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:40:24,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:40:24,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:40:24,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-04 16:40:24,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:40:24,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:40:24,169 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [234901317] [2020-09-04 16:40:24,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:40:24,169 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-04 16:40:24,170 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493782600] [2020-09-04 16:40:24,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-04 16:40:24,171 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:40:24,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-04 16:40:24,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-04 16:40:24,172 INFO L87 Difference]: Start difference. First operand 44 states and 43 transitions. Second operand 7 states. [2020-09-04 16:40:24,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:40:24,394 INFO L93 Difference]: Finished difference Result 44 states and 43 transitions. [2020-09-04 16:40:24,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-04 16:40:24,395 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 43 [2020-09-04 16:40:24,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:40:24,396 INFO L225 Difference]: With dead ends: 44 [2020-09-04 16:40:24,396 INFO L226 Difference]: Without dead ends: 0 [2020-09-04 16:40:24,398 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-04 16:40:24,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-04 16:40:24,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-04 16:40:24,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-04 16:40:24,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-04 16:40:24,400 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2020-09-04 16:40:24,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:40:24,400 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-04 16:40:24,400 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-04 16:40:24,401 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-04 16:40:24,401 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-04 16:40:24,401 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 16:40:24,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-04 16:40:25,128 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 40 [2020-09-04 16:40:25,613 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 41 [2020-09-04 16:40:25,742 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 43 [2020-09-04 16:40:25,875 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 45 [2020-09-04 16:40:26,016 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 48 [2020-09-04 16:40:26,153 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 44 [2020-09-04 16:40:26,282 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 44 [2020-09-04 16:40:26,846 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 40 [2020-09-04 16:40:26,898 INFO L264 CegarLoopResult]: At program point L4-3(line 4) the Hoare annotation is: (and (= (select |#valid| |~#a~0.base|) 1) (= ~p1~0.offset |old(~p1~0.offset)|) (= ~p1~0.base |old(~p1~0.base)|) (not (= |~#b~0.base| |~#a~0.base|))) [2020-09-04 16:40:26,899 INFO L264 CegarLoopResult]: At program point L4-4(line 4) the Hoare annotation is: (and (= (select |#valid| |~#a~0.base|) 1) (= ~p1~0.offset |old(~p1~0.offset)|) (= ~p1~0.base |old(~p1~0.base)|) (not (= |~#b~0.base| |~#a~0.base|))) [2020-09-04 16:40:26,899 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~p1~0.offset |old(~p1~0.offset)|) (= ~p1~0.base |old(~p1~0.base)|)) [2020-09-04 16:40:26,899 INFO L264 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: (and (= ~p1~0.offset |old(~p1~0.offset)|) (= ~p1~0.base |old(~p1~0.base)|)) [2020-09-04 16:40:26,899 INFO L264 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: (and (= (select |#valid| |~#a~0.base|) 1) (not (= |~#b~0.base| |~#a~0.base|))) [2020-09-04 16:40:26,900 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~p2~0.base |old(~p2~0.base)|) (= |~#b~0.offset| |old(~#b~0.offset)|) (= |old(#length)| |#length|) (= |~#a~0.offset| |old(~#a~0.offset)|) (= ~p2~0.offset |old(~p2~0.offset)|) (= |~#b~0.base| |old(~#b~0.base)|) (= |#NULL.base| |old(#NULL.base)|) (= ~p1~0.offset |old(~p1~0.offset)|) (= ~p1~0.base |old(~p1~0.base)|) (= |~#a~0.base| |old(~#a~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-09-04 16:40:26,900 INFO L264 CegarLoopResult]: At program point L5(line 5) the Hoare annotation is: (and (= (select |#valid| |~#a~0.base|) 1) (not (= |~#b~0.base| |~#a~0.base|))) [2020-09-04 16:40:26,900 INFO L264 CegarLoopResult]: At program point L4(line 4) the Hoare annotation is: (and (= ~p1~0.offset |old(~p1~0.offset)|) (= ~p1~0.base |old(~p1~0.base)|)) [2020-09-04 16:40:26,900 INFO L264 CegarLoopResult]: At program point L4-1(line 4) the Hoare annotation is: (and (= (select |#valid| |~#a~0.base|) 1) (= ~p1~0.offset |old(~p1~0.offset)|) (= ~p1~0.base |old(~p1~0.base)|)) [2020-09-04 16:40:26,901 INFO L264 CegarLoopResult]: At program point L4-2(line 4) the Hoare annotation is: (and (= (select |#valid| |~#a~0.base|) 1) (= ~p1~0.offset |old(~p1~0.offset)|) (= ~p1~0.base |old(~p1~0.base)|)) [2020-09-04 16:40:26,901 INFO L264 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: (and (= (select |#valid| |~#a~0.base|) 1) (not (= |~#b~0.base| |~#a~0.base|))) [2020-09-04 16:40:26,901 INFO L264 CegarLoopResult]: At program point fFINAL(lines 7 15) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (not (= |old(~p1~0.offset)| |~#a~0.offset|)) (not (= ~p2~0.offset |~#b~0.offset|)) (and (<= 1 f_~v~0) (<= f_~v~0 1) (= ~p2~0.base ~p1~0.base) (= ~p2~0.offset ~p1~0.offset)) (not (= |old(~p1~0.base)| |~#a~0.base|)) (not (= |~#b~0.base| ~p2~0.base)) (= |~#b~0.base| |~#a~0.base|) (not (= (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset) 1))) [2020-09-04 16:40:26,902 INFO L264 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: (or (not (= |old(~p1~0.base)| |~#a~0.base|)) (not (= |~#a~0.offset| |old(~p1~0.offset)|)) (not (= ~p2~0.offset |~#b~0.offset|)) (not (= (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset) 1)) (= |~#a~0.base| |~#b~0.base|) (not (= (select |#valid| |~#a~0.base|) 1)) (not (= ~p2~0.base |~#b~0.base|))) [2020-09-04 16:40:26,902 INFO L264 CegarLoopResult]: At program point L11(line 11) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (not (= |old(~p1~0.offset)| |~#a~0.offset|)) (not (= ~p2~0.offset |~#b~0.offset|)) (and (<= 1 f_~v~0) (<= f_~v~0 1) (= ~p2~0.base ~p1~0.base) (= ~p2~0.offset ~p1~0.offset)) (not (= |old(~p1~0.base)| |~#a~0.base|)) (not (= |~#b~0.base| ~p2~0.base)) (= |~#b~0.base| |~#a~0.base|) (not (= (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset) 1))) [2020-09-04 16:40:26,902 INFO L264 CegarLoopResult]: At program point L10(line 10) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (not (= |old(~p1~0.offset)| |~#a~0.offset|)) (not (= ~p2~0.offset |~#b~0.offset|)) (and (<= 1 f_~v~0) (<= f_~v~0 1) (= |old(~p1~0.offset)| ~p1~0.offset) (= |old(~p1~0.base)| ~p1~0.base)) (not (= |old(~p1~0.base)| |~#a~0.base|)) (not (= |~#b~0.base| ~p2~0.base)) (= |~#b~0.base| |~#a~0.base|) (not (= (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset) 1))) [2020-09-04 16:40:26,902 INFO L264 CegarLoopResult]: At program point L9(lines 9 14) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (not (= |old(~p1~0.offset)| |~#a~0.offset|)) (not (= ~p2~0.offset |~#b~0.offset|)) (and (<= 1 f_~v~0) (<= f_~v~0 1) (= |old(~p1~0.offset)| ~p1~0.offset) (= |old(~p1~0.base)| ~p1~0.base)) (not (= |old(~p1~0.base)| |~#a~0.base|)) (not (= |~#b~0.base| ~p2~0.base)) (= |~#b~0.base| |~#a~0.base|) (not (= (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset) 1))) [2020-09-04 16:40:26,903 INFO L264 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: (or (and (= |f_#t~mem0| (select (select |#memory_int| |old(~p1~0.base)|) |old(~p1~0.offset)|)) (= |old(~p1~0.offset)| ~p1~0.offset) (= |old(~p1~0.base)| ~p1~0.base)) (not (= (select |#valid| |~#a~0.base|) 1)) (not (= |old(~p1~0.offset)| |~#a~0.offset|)) (not (= ~p2~0.offset |~#b~0.offset|)) (not (= |old(~p1~0.base)| |~#a~0.base|)) (not (= |~#b~0.base| ~p2~0.base)) (= |~#b~0.base| |~#a~0.base|) (not (= (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset) 1))) [2020-09-04 16:40:26,903 INFO L264 CegarLoopResult]: At program point fEXIT(lines 7 15) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (not (= |old(~p1~0.offset)| |~#a~0.offset|)) (not (= ~p2~0.offset |~#b~0.offset|)) (and (<= 1 f_~v~0) (<= f_~v~0 1) (= ~p2~0.base ~p1~0.base) (= ~p2~0.offset ~p1~0.offset)) (not (= |old(~p1~0.base)| |~#a~0.base|)) (not (= |~#b~0.base| ~p2~0.base)) (= |~#b~0.base| |~#a~0.base|) (not (= (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset) 1))) [2020-09-04 16:40:26,903 INFO L264 CegarLoopResult]: At program point L8-1(line 8) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (not (= |old(~p1~0.offset)| |~#a~0.offset|)) (not (= ~p2~0.offset |~#b~0.offset|)) (not (= |old(~p1~0.base)| |~#a~0.base|)) (not (= |~#b~0.base| ~p2~0.base)) (and (= |f_#t~mem0| (select (select |#memory_int| |old(~p1~0.base)|) |old(~p1~0.offset)|)) (= |old(~p1~0.offset)| ~p1~0.offset) (= |old(~p1~0.base)| ~p1~0.base) (= |f_#t~mem1| 1)) (= |~#b~0.base| |~#a~0.base|) (not (= (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset) 1))) [2020-09-04 16:40:26,903 INFO L264 CegarLoopResult]: At program point L8-2(line 8) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (not (= |old(~p1~0.offset)| |~#a~0.offset|)) (not (= ~p2~0.offset |~#b~0.offset|)) (and (= |f_#t~mem0| |f_#t~mem2|) (= |f_#t~mem0| (select (select |#memory_int| |old(~p1~0.base)|) |old(~p1~0.offset)|)) (= |old(~p1~0.offset)| ~p1~0.offset) (= |old(~p1~0.base)| ~p1~0.base) (= |f_#t~mem1| 1)) (not (= |old(~p1~0.base)| |~#a~0.base|)) (not (= |~#b~0.base| ~p2~0.base)) (= |~#b~0.base| |~#a~0.base|) (not (= (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset) 1))) [2020-09-04 16:40:26,904 INFO L264 CegarLoopResult]: At program point fENTRY(lines 7 15) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (not (= |old(~p1~0.offset)| |~#a~0.offset|)) (not (= ~p2~0.offset |~#b~0.offset|)) (not (= |old(~p1~0.base)| |~#a~0.base|)) (not (= |~#b~0.base| ~p2~0.base)) (and (= |old(~p1~0.offset)| ~p1~0.offset) (= |old(~p1~0.base)| ~p1~0.base)) (= |~#b~0.base| |~#a~0.base|) (not (= (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset) 1))) [2020-09-04 16:40:26,904 INFO L264 CegarLoopResult]: At program point L8-3(line 8) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (not (= |old(~p1~0.offset)| |~#a~0.offset|)) (not (= ~p2~0.offset |~#b~0.offset|)) (and (= |f_#t~mem0| |f_#t~mem2|) (<= 1 f_~v~0) (= |f_#t~mem0| (select (select |#memory_int| |old(~p1~0.base)|) |old(~p1~0.offset)|)) (<= f_~v~0 1) (= |old(~p1~0.offset)| ~p1~0.offset) (= |old(~p1~0.base)| ~p1~0.base) (= |f_#t~mem1| 1)) (not (= |old(~p1~0.base)| |~#a~0.base|)) (not (= |~#b~0.base| ~p2~0.base)) (= |~#b~0.base| |~#a~0.base|) (not (= (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset) 1))) [2020-09-04 16:40:26,904 INFO L264 CegarLoopResult]: At program point L8-4(line 8) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (not (= |old(~p1~0.offset)| |~#a~0.offset|)) (not (= ~p2~0.offset |~#b~0.offset|)) (and (<= 1 f_~v~0) (= |f_#t~mem0| (select (select |#memory_int| |old(~p1~0.base)|) |old(~p1~0.offset)|)) (<= f_~v~0 1) (= |old(~p1~0.offset)| ~p1~0.offset) (= |old(~p1~0.base)| ~p1~0.base)) (not (= |old(~p1~0.base)| |~#a~0.base|)) (not (= |~#b~0.base| ~p2~0.base)) (= |~#b~0.base| |~#a~0.base|) (not (= (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset) 1))) [2020-09-04 16:40:26,905 INFO L264 CegarLoopResult]: At program point L8-5(line 8) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (not (= |old(~p1~0.offset)| |~#a~0.offset|)) (not (= ~p2~0.offset |~#b~0.offset|)) (and (<= 1 f_~v~0) (= |f_#t~mem0| (select (select |#memory_int| |old(~p1~0.base)|) |old(~p1~0.offset)|)) (<= f_~v~0 1) (= |old(~p1~0.offset)| ~p1~0.offset) (= |old(~p1~0.base)| ~p1~0.base)) (not (= |old(~p1~0.base)| |~#a~0.base|)) (not (= |~#b~0.base| ~p2~0.base)) (= |~#b~0.base| |~#a~0.base|) (not (= (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset) 1))) [2020-09-04 16:40:26,905 INFO L264 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: (and (= (select |#valid| |~#a~0.base|) 1) (not (= |~#b~0.base| |~#a~0.base|))) [2020-09-04 16:40:26,905 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= (select |#valid| |~#a~0.base|) 1) (not (= |~#b~0.base| |~#a~0.base|))) [2020-09-04 16:40:26,905 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-04 16:40:26,905 INFO L264 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: (and (= (select |#valid| |~#a~0.base|) 1) (not (= |~#b~0.base| |~#a~0.base|))) [2020-09-04 16:40:26,906 INFO L264 CegarLoopResult]: At program point L31(lines 31 33) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (= |~#b~0.base| |~#a~0.base|) (and (= |main_#t~mem6| 1000) (= (select (select |#memory_int| ~p2~0.base) ~p2~0.offset) 1000) (= ~p2~0.base ~p1~0.base) (= ~p2~0.offset ~p1~0.offset))) [2020-09-04 16:40:26,906 INFO L264 CegarLoopResult]: At program point L31-1(line 31) the Hoare annotation is: (or (= |~#a~0.base| |~#b~0.base|) (not (= (select |#valid| |~#a~0.base|) 1))) [2020-09-04 16:40:26,906 INFO L264 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= ~p2~0.base ~p1~0.base) (= ~p2~0.offset ~p1~0.offset)) (= |~#b~0.base| |~#a~0.base|)) [2020-09-04 16:40:26,906 INFO L271 CegarLoopResult]: At program point L31-2(line 31) the Hoare annotation is: true [2020-09-04 16:40:26,906 INFO L264 CegarLoopResult]: At program point L29-1(line 29) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= (select (select |#memory_int| ~p2~0.base) ~p2~0.offset) 1000) (= ~p2~0.base ~p1~0.base) (= ~p2~0.offset ~p1~0.offset)) (= |~#b~0.base| |~#a~0.base|)) [2020-09-04 16:40:26,907 INFO L264 CegarLoopResult]: At program point L27(line 27) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= ~p2~0.offset |~#b~0.offset|) (= |~#a~0.base| ~p1~0.base) (= |~#b~0.base| ~p2~0.base) (= (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset) 1) (= ~p1~0.offset |~#a~0.offset|)) (= |~#b~0.base| |~#a~0.base|)) [2020-09-04 16:40:26,907 INFO L264 CegarLoopResult]: At program point L27-1(line 27) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= ~p2~0.base ~p1~0.base) (= ~p2~0.offset ~p1~0.offset)) (= |~#b~0.base| |~#a~0.base|)) [2020-09-04 16:40:26,907 INFO L264 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= ~p2~0.offset |~#b~0.offset|) (= |~#a~0.base| ~p1~0.base) (= |~#b~0.base| ~p2~0.base) (= (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset) 1) (= ~p1~0.offset |~#a~0.offset|)) (= |~#b~0.base| |~#a~0.base|)) [2020-09-04 16:40:26,907 INFO L264 CegarLoopResult]: At program point L27-2(line 27) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= ~p2~0.base ~p1~0.base) (= ~p2~0.offset ~p1~0.offset)) (= |~#b~0.base| |~#a~0.base|)) [2020-09-04 16:40:26,908 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 17 39) the Hoare annotation is: true [2020-09-04 16:40:26,908 INFO L264 CegarLoopResult]: At program point L25-1(line 25) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= ~p2~0.offset |~#b~0.offset|) (= |~#a~0.base| ~p1~0.base) (= |~#b~0.base| ~p2~0.base) (= (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset) 1) (= ~p1~0.offset |~#a~0.offset|)) (= |~#b~0.base| |~#a~0.base|)) [2020-09-04 16:40:26,908 INFO L264 CegarLoopResult]: At program point L27-3(line 27) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= ~p2~0.base ~p1~0.base) (= ~p2~0.offset ~p1~0.offset)) (= |~#b~0.base| |~#a~0.base|)) [2020-09-04 16:40:26,908 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= ~p2~0.offset |~#b~0.offset|) (= |~#a~0.base| ~p1~0.base) (= |~#b~0.base| ~p2~0.base) (= (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset) 1) (= ~p1~0.offset |~#a~0.offset|)) (= |~#b~0.base| |~#a~0.base|)) [2020-09-04 16:40:26,909 INFO L264 CegarLoopResult]: At program point L25-2(line 25) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= ~p2~0.offset |~#b~0.offset|) (= |~#a~0.base| ~p1~0.base) (= |~#b~0.base| ~p2~0.base) (= (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset) 1) (= ~p1~0.offset |~#a~0.offset|)) (= |~#b~0.base| |~#a~0.base|)) [2020-09-04 16:40:26,909 INFO L264 CegarLoopResult]: At program point L25-3(line 25) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= ~p2~0.offset |~#b~0.offset|) (= |~#a~0.base| ~p1~0.base) (= |~#b~0.base| ~p2~0.base) (= (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset) 1) (= ~p1~0.offset |~#a~0.offset|)) (= |~#b~0.base| |~#a~0.base|)) [2020-09-04 16:40:26,909 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 17 39) the Hoare annotation is: true [2020-09-04 16:40:26,909 INFO L264 CegarLoopResult]: At program point L38(line 38) the Hoare annotation is: (or (= |~#a~0.base| |~#b~0.base|) (not (= (select |#valid| |~#a~0.base|) 1))) [2020-09-04 16:40:26,909 INFO L264 CegarLoopResult]: At program point L32(lines 17 39) the Hoare annotation is: (or (= |~#a~0.base| |~#b~0.base|) (not (= (select |#valid| |~#a~0.base|) 1))) [2020-09-04 16:40:26,910 INFO L264 CegarLoopResult]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 37) the Hoare annotation is: (or (= |~#a~0.base| |~#b~0.base|) (not (= (select |#valid| |~#a~0.base|) 1))) [2020-09-04 16:40:26,910 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 17 39) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= ~p2~0.base |old(~p2~0.base)|) (= |old(~p2~0.offset)| ~p2~0.offset) (= |old(~p1~0.offset)| ~p1~0.offset) (= |old(~p1~0.base)| ~p1~0.base)) (= |~#b~0.base| |~#a~0.base|)) [2020-09-04 16:40:26,910 INFO L264 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= ~p2~0.offset |~#b~0.offset|) (= |~#a~0.base| ~p1~0.base) (= |~#b~0.base| ~p2~0.base) (= ~p1~0.offset |~#a~0.offset|)) (= |~#b~0.base| |~#a~0.base|)) [2020-09-04 16:40:26,911 INFO L264 CegarLoopResult]: At program point L22-1(line 22) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= ~p2~0.offset |~#b~0.offset|) (= |~#a~0.base| ~p1~0.base) (= |~#b~0.base| ~p2~0.base) (= (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset) 1) (= ~p1~0.offset |~#a~0.offset|)) (= |~#b~0.base| |~#a~0.base|)) [2020-09-04 16:40:26,911 INFO L264 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= |~#a~0.base| ~p1~0.base) (= ~p1~0.offset |~#a~0.offset|)) (= |~#b~0.base| |~#a~0.base|)) [2020-09-04 16:40:26,911 INFO L271 CegarLoopResult]: At program point L35(line 35) the Hoare annotation is: true [2020-09-04 16:40:26,936 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 16:40:26,938 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 16:40:26,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 04:40:26 BoogieIcfgContainer [2020-09-04 16:40:26,942 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 16:40:26,944 INFO L168 Benchmark]: Toolchain (without parser) took 7053.91 ms. Allocated memory was 137.4 MB in the beginning and 288.4 MB in the end (delta: 151.0 MB). Free memory was 101.7 MB in the beginning and 217.0 MB in the end (delta: -115.3 MB). Peak memory consumption was 160.7 MB. Max. memory is 7.1 GB. [2020-09-04 16:40:26,945 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 137.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 16:40:26,946 INFO L168 Benchmark]: CACSL2BoogieTranslator took 359.00 ms. Allocated memory is still 137.4 MB. Free memory was 101.3 MB in the beginning and 91.1 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-09-04 16:40:26,948 INFO L168 Benchmark]: Boogie Preprocessor took 132.34 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 91.1 MB in the beginning and 178.8 MB in the end (delta: -87.7 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. [2020-09-04 16:40:26,949 INFO L168 Benchmark]: RCFGBuilder took 420.92 ms. Allocated memory is still 200.8 MB. Free memory was 178.8 MB in the beginning and 161.9 MB in the end (delta: 16.9 MB). Peak memory consumption was 16.9 MB. Max. memory is 7.1 GB. [2020-09-04 16:40:26,950 INFO L168 Benchmark]: TraceAbstraction took 6134.94 ms. Allocated memory was 200.8 MB in the beginning and 288.4 MB in the end (delta: 87.6 MB). Free memory was 161.2 MB in the beginning and 217.0 MB in the end (delta: -55.9 MB). Peak memory consumption was 156.8 MB. Max. memory is 7.1 GB. [2020-09-04 16:40:26,954 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 137.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 359.00 ms. Allocated memory is still 137.4 MB. Free memory was 101.3 MB in the beginning and 91.1 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 132.34 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 91.1 MB in the beginning and 178.8 MB in the end (delta: -87.7 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 420.92 ms. Allocated memory is still 200.8 MB. Free memory was 178.8 MB in the beginning and 161.9 MB in the end (delta: 16.9 MB). Peak memory consumption was 16.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6134.94 ms. Allocated memory was 200.8 MB in the beginning and 288.4 MB in the end (delta: 87.6 MB). Free memory was 161.2 MB in the beginning and 217.0 MB in the end (delta: -55.9 MB). Peak memory consumption was 156.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 37]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: a == b || !(\valid[a] == 1) - ProcedureContractResult [Line: 7]: Procedure Contract for f [2020-09-04 16:40:26,966 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 16:40:26,966 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 16:40:26,967 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-04 16:40:26,968 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived contract for procedure f: ((((((!(\valid[a] == 1) || !(\old(p1) == a)) || !(p2 == b)) || (((1 <= v && v <= 1) && p2 == p1) && p2 == p1)) || !(\old(p1) == a)) || !(b == p2)) || b == a) || !(unknown-#memory_int-unknown[a := unknown-#memory_int-unknown[a][a := 5]][p2][p2] == 1) - ProcedureContractResult [Line: 17]: Procedure Contract for main Derived contract for procedure main: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 52 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 64 SDtfs, 144 SDslu, 242 SDs, 0 SdLazy, 298 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred 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: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 52 LocationsWithAnnotation, 52 PreInvPairs, 66 NumberOfFragments, 1402 HoareAnnotationTreeSize, 52 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 52 FomulaSimplificationsInter, 1108 FormulaSimplificationTreeSizeReductionInter, 1.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, 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 correct! Received shutdown request...