/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 18:44:42,885 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 18:44:42,890 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 18:44:42,945 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 18:44:42,946 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 18:44:42,951 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 18:44:42,954 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 18:44:42,962 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 18:44:42,965 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 18:44:42,971 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 18:44:42,985 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 18:44:42,987 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 18:44:42,987 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 18:44:42,990 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 18:44:42,992 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 18:44:42,994 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 18:44:42,995 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 18:44:42,998 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 18:44:43,004 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 18:44:43,007 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 18:44:43,012 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 18:44:43,013 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 18:44:43,015 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 18:44:43,018 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 18:44:43,026 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-23 18:44:43,037 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 18:44:43,038 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 18:44:43,039 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 18:44:43,040 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 [2020-10-23 18:44:43,091 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 18:44:43,092 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 18:44:43,096 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 18:44:43,096 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 18:44:43,096 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 18:44:43,097 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 18:44:43,097 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 18:44:43,097 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 18:44:43,097 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 18:44:43,098 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 18:44:43,099 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 18:44:43,099 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 18:44:43,099 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 18:44:43,099 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 18:44:43,099 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 18:44:43,100 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 18:44:43,100 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 18:44:43,100 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 18:44:43,100 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 18:44:43,100 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 18:44:43,101 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 18:44:43,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 18:44:43,101 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 18:44:43,101 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 18:44:43,102 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 18:44:43,102 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 18:44:43,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 18:44:43,102 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 18:44:43,102 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 18:44:43,103 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 18:44:43,561 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 18:44:43,597 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 18:44:43,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 18:44:43,602 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 18:44:43,602 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 18:44:43,603 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c [2020-10-23 18:44:43,689 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/492ba257b/d784d2efc6e0466fb8309fb2abc42f63/FLAG558d209f6 [2020-10-23 18:44:44,281 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 18:44:44,282 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c [2020-10-23 18:44:44,297 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/492ba257b/d784d2efc6e0466fb8309fb2abc42f63/FLAG558d209f6 [2020-10-23 18:44:44,606 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/492ba257b/d784d2efc6e0466fb8309fb2abc42f63 [2020-10-23 18:44:44,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 18:44:44,616 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 18:44:44,618 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 18:44:44,618 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 18:44:44,622 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 18:44:44,623 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:44:44" (1/1) ... [2020-10-23 18:44:44,626 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d2737ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:44:44, skipping insertion in model container [2020-10-23 18:44:44,627 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:44:44" (1/1) ... [2020-10-23 18:44:44,635 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 18:44:44,678 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 18:44:44,972 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:44:44,984 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 18:44:45,126 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:44:45,153 INFO L208 MainTranslator]: Completed translation [2020-10-23 18:44:45,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:44:45 WrapperNode [2020-10-23 18:44:45,154 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 18:44:45,155 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 18:44:45,155 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 18:44:45,155 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 18:44:45,167 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:44:45" (1/1) ... [2020-10-23 18:44:45,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:44:45" (1/1) ... [2020-10-23 18:44:45,187 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:44:45" (1/1) ... [2020-10-23 18:44:45,188 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:44:45" (1/1) ... [2020-10-23 18:44:45,232 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:44:45" (1/1) ... [2020-10-23 18:44:45,239 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:44:45" (1/1) ... [2020-10-23 18:44:45,247 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:44:45" (1/1) ... [2020-10-23 18:44:45,254 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 18:44:45,255 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 18:44:45,256 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 18:44:45,256 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 18:44:45,257 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:44:45" (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 [2020-10-23 18:44:45,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 18:44:45,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 18:44:45,356 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 18:44:45,356 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 18:44:45,357 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 18:44:45,357 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 18:44:45,358 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 18:44:45,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 18:44:45,358 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2020-10-23 18:44:45,358 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-10-23 18:44:45,359 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 18:44:45,359 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-23 18:44:45,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 18:44:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 18:44:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 18:44:45,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 18:44:45,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 18:44:45,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 18:44:45,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 18:44:45,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 18:44:48,763 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 18:44:48,764 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-23 18:44:48,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:44:48 BoogieIcfgContainer [2020-10-23 18:44:48,766 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 18:44:48,767 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 18:44:48,768 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 18:44:48,771 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 18:44:48,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:44:44" (1/3) ... [2020-10-23 18:44:48,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fcd462b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:44:48, skipping insertion in model container [2020-10-23 18:44:48,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:44:45" (2/3) ... [2020-10-23 18:44:48,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fcd462b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:44:48, skipping insertion in model container [2020-10-23 18:44:48,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:44:48" (3/3) ... [2020-10-23 18:44:48,775 INFO L111 eAbstractionObserver]: Analyzing ICFG aiob_4.c.v+lhb-reducer.c [2020-10-23 18:44:48,786 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 18:44:48,791 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 18:44:48,804 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 18:44:48,832 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 18:44:48,832 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 18:44:48,832 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 18:44:48,832 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 18:44:48,832 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 18:44:48,833 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 18:44:48,833 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 18:44:48,833 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 18:44:48,851 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states. [2020-10-23 18:44:48,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-23 18:44:48,858 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:44:48,859 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, 1, 1, 1, 1, 1, 1] [2020-10-23 18:44:48,860 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:44:48,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:44:48,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1601034307, now seen corresponding path program 1 times [2020-10-23 18:44:48,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:44:48,877 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39410895] [2020-10-23 18:44:48,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:44:49,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:44:49,897 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-23 18:44:49,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:44:49,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:44:49,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:44:49,971 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39410895] [2020-10-23 18:44:49,971 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:44:49,972 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 18:44:49,972 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106241586] [2020-10-23 18:44:49,977 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 18:44:49,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:44:49,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 18:44:49,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2020-10-23 18:44:49,995 INFO L87 Difference]: Start difference. First operand 59 states. Second operand 14 states. [2020-10-23 18:44:50,320 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-23 18:45:11,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:45:11,455 INFO L93 Difference]: Finished difference Result 97 states and 142 transitions. [2020-10-23 18:45:11,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 18:45:11,465 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 49 [2020-10-23 18:45:11,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:45:11,481 INFO L225 Difference]: With dead ends: 97 [2020-10-23 18:45:11,482 INFO L226 Difference]: Without dead ends: 58 [2020-10-23 18:45:11,488 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2020-10-23 18:45:11,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-23 18:45:11,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 55. [2020-10-23 18:45:11,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-23 18:45:11,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 55 transitions. [2020-10-23 18:45:11,529 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 55 transitions. Word has length 49 [2020-10-23 18:45:11,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:45:11,530 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 55 transitions. [2020-10-23 18:45:11,530 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 18:45:11,530 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions. [2020-10-23 18:45:11,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-23 18:45:11,532 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:45:11,532 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:45:11,533 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 18:45:11,533 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:45:11,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:45:11,534 INFO L82 PathProgramCache]: Analyzing trace with hash -1694238209, now seen corresponding path program 1 times [2020-10-23 18:45:11,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:45:11,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878357287] [2020-10-23 18:45:11,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:45:11,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:45:12,162 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-23 18:45:12,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:45:12,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:45:12,199 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:45:12,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878357287] [2020-10-23 18:45:12,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1072081279] [2020-10-23 18:45:12,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:45:12,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:45:12,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 870 conjuncts, 25 conjunts are in the unsatisfiable core [2020-10-23 18:45:12,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:45:12,614 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:45:12,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:45:12,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 16 [2020-10-23 18:45:12,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455551283] [2020-10-23 18:45:12,617 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-23 18:45:12,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:45:12,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-23 18:45:12,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2020-10-23 18:45:12,618 INFO L87 Difference]: Start difference. First operand 55 states and 55 transitions. Second operand 16 states. [2020-10-23 18:45:13,101 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-23 18:45:38,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:45:38,062 INFO L93 Difference]: Finished difference Result 67 states and 67 transitions. [2020-10-23 18:45:38,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-23 18:45:38,062 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 54 [2020-10-23 18:45:38,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:45:38,064 INFO L225 Difference]: With dead ends: 67 [2020-10-23 18:45:38,065 INFO L226 Difference]: Without dead ends: 63 [2020-10-23 18:45:38,066 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=84, Invalid=728, Unknown=0, NotChecked=0, Total=812 [2020-10-23 18:45:38,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-10-23 18:45:38,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 60. [2020-10-23 18:45:38,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-23 18:45:38,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 60 transitions. [2020-10-23 18:45:38,076 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 60 transitions. Word has length 54 [2020-10-23 18:45:38,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:45:38,077 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 60 transitions. [2020-10-23 18:45:38,077 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-23 18:45:38,077 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 60 transitions. [2020-10-23 18:45:38,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-23 18:45:38,079 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:45:38,079 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 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, 1, 1, 1, 1] [2020-10-23 18:45:38,292 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-10-23 18:45:38,293 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:45:38,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:45:38,295 INFO L82 PathProgramCache]: Analyzing trace with hash -1108767293, now seen corresponding path program 2 times [2020-10-23 18:45:38,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:45:38,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918306885] [2020-10-23 18:45:38,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:45:38,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:45:38,852 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-23 18:45:38,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:45:38,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:45:38,888 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:45:38,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918306885] [2020-10-23 18:45:38,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [212534754] [2020-10-23 18:45:38,889 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:45:56,978 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-23 18:45:56,979 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-23 18:45:57,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 908 conjuncts, 27 conjunts are in the unsatisfiable core [2020-10-23 18:45:57,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:45:57,122 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:45:57,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:45:57,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15] total 17 [2020-10-23 18:45:57,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129364125] [2020-10-23 18:45:57,125 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-23 18:45:57,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:45:57,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-23 18:45:57,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2020-10-23 18:45:57,127 INFO L87 Difference]: Start difference. First operand 60 states and 60 transitions. Second operand 17 states. [2020-10-23 18:45:57,451 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-23 18:46:24,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:46:24,461 INFO L93 Difference]: Finished difference Result 72 states and 72 transitions. [2020-10-23 18:46:24,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-23 18:46:24,462 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 59 [2020-10-23 18:46:24,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:46:24,465 INFO L225 Difference]: With dead ends: 72 [2020-10-23 18:46:24,465 INFO L226 Difference]: Without dead ends: 68 [2020-10-23 18:46:24,466 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=90, Invalid=840, Unknown=0, NotChecked=0, Total=930 [2020-10-23 18:46:24,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-23 18:46:24,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 65. [2020-10-23 18:46:24,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-10-23 18:46:24,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 65 transitions. [2020-10-23 18:46:24,478 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 65 transitions. Word has length 59 [2020-10-23 18:46:24,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:46:24,479 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 65 transitions. [2020-10-23 18:46:24,484 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-23 18:46:24,484 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 65 transitions. [2020-10-23 18:46:24,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-23 18:46:24,486 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:46:24,489 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 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, 1, 1, 1, 1] [2020-10-23 18:46:24,699 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:46:24,700 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:46:24,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:46:24,702 INFO L82 PathProgramCache]: Analyzing trace with hash -922897281, now seen corresponding path program 3 times [2020-10-23 18:46:24,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:46:24,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043935457] [2020-10-23 18:46:24,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:46:24,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:46:25,343 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-23 18:46:25,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:46:25,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:46:25,369 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:46:25,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043935457] [2020-10-23 18:46:25,370 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1354878990] [2020-10-23 18:46:25,370 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:47:08,988 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-10-23 18:47:08,988 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-23 18:47:09,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 908 conjuncts, 79 conjunts are in the unsatisfiable core [2020-10-23 18:47:09,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:47:10,675 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:47:10,739 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-23 18:47:10,739 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 50 [2020-10-23 18:47:10,741 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-23 18:47:10,750 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-10-23 18:47:10,750 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-23 18:47:10,798 INFO L625 ElimStorePlain]: treesize reduction 5, result has 89.6 percent of original size [2020-10-23 18:47:10,799 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 18:47:10,808 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-23 18:47:10,810 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:76, output treesize:18 [2020-10-23 18:47:10,882 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-23 18:47:11,104 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-23 18:47:11,105 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:47:11,105 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 22] total 37 [2020-10-23 18:47:11,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709318431] [2020-10-23 18:47:11,106 INFO L461 AbstractCegarLoop]: Interpolant automaton has 37 states [2020-10-23 18:47:11,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:47:11,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2020-10-23 18:47:11,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=1156, Unknown=0, NotChecked=0, Total=1332 [2020-10-23 18:47:11,109 INFO L87 Difference]: Start difference. First operand 65 states and 65 transitions. Second operand 37 states. [2020-10-23 18:47:11,489 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-23 18:47:26,446 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2020-10-23 18:47:28,656 WARN L193 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 49 DAG size of output: 39 [2020-10-23 18:47:28,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:47:28,928 INFO L93 Difference]: Finished difference Result 76 states and 78 transitions. [2020-10-23 18:47:28,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-23 18:47:28,929 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 64 [2020-10-23 18:47:28,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:47:28,930 INFO L225 Difference]: With dead ends: 76 [2020-10-23 18:47:28,930 INFO L226 Difference]: Without dead ends: 0 [2020-10-23 18:47:28,932 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 42 SyntacticMatches, 4 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 734 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=537, Invalid=3123, Unknown=0, NotChecked=0, Total=3660 [2020-10-23 18:47:28,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-23 18:47:28,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-23 18:47:28,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-23 18:47:28,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-23 18:47:28,933 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 64 [2020-10-23 18:47:28,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:47:28,933 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-23 18:47:28,934 INFO L482 AbstractCegarLoop]: Interpolant automaton has 37 states. [2020-10-23 18:47:28,934 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-23 18:47:28,934 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-23 18:47:29,142 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:47:29,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-23 18:47:29,460 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 42 [2020-10-23 18:47:29,606 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-23 18:47:29,808 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 49 [2020-10-23 18:47:29,811 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-23 18:47:29,811 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-23 18:47:29,811 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-23 18:47:29,812 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-23 18:47:29,812 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:47:29,812 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string67.offset| |old(#t~string67.offset)|) (= |#t~string65.base| |old(#t~string65.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= ~__tmp_1075_0~0 |old(~__tmp_1075_0~0)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#t~string57.offset| |old(#t~string57.offset)|) (= |old(#valid)| |#valid|) (= |#t~string57.base| |old(#t~string57.base)|) (= |#t~string61.base| |old(#t~string61.base)|) (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string61.offset| |old(#t~string61.offset)|) (= ~Id_MCDC_93~0 |old(~Id_MCDC_93~0)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#t~string8.base| |old(#t~string8.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string69.base| |old(#t~string69.base)|) (= ~__tmp_1075_2~0.base |old(~__tmp_1075_2~0.base)|) (= |#t~string7.base| |old(#t~string7.base)|) (= |#t~string55.base| |old(#t~string55.base)|) (= |#t~string69.offset| |old(#t~string69.offset)|) (= |#t~string63.offset| |old(#t~string63.offset)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string8.offset| |old(#t~string8.offset)|) (= |#t~string65.offset| |old(#t~string65.offset)|) (= |#t~string67.base| |old(#t~string67.base)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= |#t~string53.base| |old(#t~string53.base)|) (= |#t~string51.base| |old(#t~string51.base)|) (= |#t~string63.base| |old(#t~string63.base)|) (= ~__tmp_1075_2~0.offset |old(~__tmp_1075_2~0.offset)|) (= |#t~string59.base| |old(#t~string59.base)|) (= |#t~string51.offset| |old(#t~string51.offset)|) (= |#t~string55.offset| |old(#t~string55.offset)|) (= ~__return_main~0 |old(~__return_main~0)|) (= |#t~string53.offset| |old(#t~string53.offset)|) (= |#t~string59.offset| |old(#t~string59.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~__tmp_1075_1~0 |old(~__tmp_1075_1~0)|)) [2020-10-23 18:47:29,812 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:47:29,812 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:47:29,812 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (exists ((|#t~string4.offset| Int) (|#t~string4.base| Int)) (= 48 (select (select |#memory_int| |#t~string4.base|) |#t~string4.offset|))) (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= ~Id_MCDC_93~0 9)) [2020-10-23 18:47:29,813 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-23 18:47:29,813 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:47:29,813 INFO L274 CegarLoopResult]: For program point L225(lines 225 604) no Hoare annotation was computed. [2020-10-23 18:47:29,813 INFO L274 CegarLoopResult]: For program point L192(lines 192 622) no Hoare annotation was computed. [2020-10-23 18:47:29,813 INFO L270 CegarLoopResult]: At program point L448(lines 408 481) the Hoare annotation is: (or (not (<= |old(~Id_MCDC_93~0)| 9)) (let ((.cse1 (mod (+ main_~Id_MCDC_89__Id_MCDC_96~0 4294967295) 4294967296)) (.cse0 (mod (+ ~Id_MCDC_93~0 4294967295) 4294967296))) (and (< .cse0 42) (< .cse1 42) (= |main_~#main__Id_MCDC_119~0.offset| 0) (not (= 492 (* .cse1 12))) (not (= 492 (* .cse0 12))) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 0))) (not (< 0 (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1))) (forall ((|#t~string4.offset| Int) (|#t~string4.base| Int)) (not (= 48 (select (select |#memory_int| |#t~string4.base|) |#t~string4.offset|))))) [2020-10-23 18:47:29,814 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 136 636) no Hoare annotation was computed. [2020-10-23 18:47:29,814 INFO L274 CegarLoopResult]: For program point L184(lines 184 628) no Hoare annotation was computed. [2020-10-23 18:47:29,814 INFO L274 CegarLoopResult]: For program point L440(lines 440 453) no Hoare annotation was computed. [2020-10-23 18:47:29,814 INFO L274 CegarLoopResult]: For program point L407(lines 407 485) no Hoare annotation was computed. [2020-10-23 18:47:29,814 INFO L274 CegarLoopResult]: For program point L374(lines 374 503) no Hoare annotation was computed. [2020-10-23 18:47:29,814 INFO L274 CegarLoopResult]: For program point L465(lines 465 473) no Hoare annotation was computed. [2020-10-23 18:47:29,814 INFO L274 CegarLoopResult]: For program point L366(lines 366 509) no Hoare annotation was computed. [2020-10-23 18:47:29,814 INFO L274 CegarLoopResult]: For program point L234(lines 234 599) no Hoare annotation was computed. [2020-10-23 18:47:29,815 INFO L274 CegarLoopResult]: For program point L251(lines 251 587) no Hoare annotation was computed. [2020-10-23 18:47:29,815 INFO L274 CegarLoopResult]: For program point L218(lines 218 605) no Hoare annotation was computed. [2020-10-23 18:47:29,815 INFO L274 CegarLoopResult]: For program point L210(lines 210 611) no Hoare annotation was computed. [2020-10-23 18:47:29,815 INFO L274 CegarLoopResult]: For program point L433(lines 433 454) no Hoare annotation was computed. [2020-10-23 18:47:29,815 INFO L274 CegarLoopResult]: For program point L400(lines 400 486) no Hoare annotation was computed. [2020-10-23 18:47:29,815 INFO L274 CegarLoopResult]: For program point L425(lines 425 475) no Hoare annotation was computed. [2020-10-23 18:47:29,815 INFO L274 CegarLoopResult]: For program point L392(lines 392 492) no Hoare annotation was computed. [2020-10-23 18:47:29,815 INFO L274 CegarLoopResult]: For program point L260(lines 260 582) no Hoare annotation was computed. [2020-10-23 18:47:29,816 INFO L274 CegarLoopResult]: For program point L277(lines 277 570) no Hoare annotation was computed. [2020-10-23 18:47:29,816 INFO L274 CegarLoopResult]: For program point L244(lines 244 588) no Hoare annotation was computed. [2020-10-23 18:47:29,816 INFO L270 CegarLoopResult]: At program point L467(line 467) the Hoare annotation is: (or (not (<= |old(~Id_MCDC_93~0)| 9)) (not (< 0 (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1))) (forall ((|#t~string4.offset| Int) (|#t~string4.base| Int)) (not (= 48 (select (select |#memory_int| |#t~string4.base|) |#t~string4.offset|))))) [2020-10-23 18:47:29,816 INFO L274 CegarLoopResult]: For program point L467-1(line 467) no Hoare annotation was computed. [2020-10-23 18:47:29,816 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 136 636) no Hoare annotation was computed. [2020-10-23 18:47:29,816 INFO L274 CegarLoopResult]: For program point L236(lines 236 594) no Hoare annotation was computed. [2020-10-23 18:47:29,816 INFO L274 CegarLoopResult]: For program point L286(lines 286 565) no Hoare annotation was computed. [2020-10-23 18:47:29,817 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 136 636) the Hoare annotation is: (or (and (= ~__tmp_1075_2~0.offset |old(~__tmp_1075_2~0.offset)|) (= ~Id_MCDC_93~0 |old(~Id_MCDC_93~0)|) (= ~__tmp_1075_0~0 |old(~__tmp_1075_0~0)|) (= |old(#length)| |#length|) (= |old(~__tmp_1075_2~0.base)| ~__tmp_1075_2~0.base) (= |old(#valid)| |#valid|) (= ~__tmp_1075_1~0 |old(~__tmp_1075_1~0)|)) (not (<= |old(~Id_MCDC_93~0)| 9)) (forall ((.unlet.0 Int) (.unlet.1 Int)) (not (= (select (select |#memory_int| .unlet.1) .unlet.0) 48))) (not (< 0 (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1)))) [2020-10-23 18:47:29,817 INFO L274 CegarLoopResult]: For program point L303(lines 303 553) no Hoare annotation was computed. [2020-10-23 18:47:29,817 INFO L274 CegarLoopResult]: For program point L270(lines 270 571) no Hoare annotation was computed. [2020-10-23 18:47:29,817 INFO L274 CegarLoopResult]: For program point L262(lines 262 577) no Hoare annotation was computed. [2020-10-23 18:47:29,817 INFO L274 CegarLoopResult]: For program point L312(lines 312 548) no Hoare annotation was computed. [2020-10-23 18:47:29,817 INFO L274 CegarLoopResult]: For program point L329(lines 329 536) no Hoare annotation was computed. [2020-10-23 18:47:29,817 INFO L274 CegarLoopResult]: For program point L296(lines 296 554) no Hoare annotation was computed. [2020-10-23 18:47:29,817 INFO L274 CegarLoopResult]: For program point L164(lines 164 635) no Hoare annotation was computed. [2020-10-23 18:47:29,818 INFO L274 CegarLoopResult]: For program point L288(lines 288 560) no Hoare annotation was computed. [2020-10-23 18:47:29,818 INFO L274 CegarLoopResult]: For program point L338(lines 338 531) no Hoare annotation was computed. [2020-10-23 18:47:29,818 INFO L274 CegarLoopResult]: For program point L355(lines 355 519) no Hoare annotation was computed. [2020-10-23 18:47:29,818 INFO L274 CegarLoopResult]: For program point L322(lines 322 537) no Hoare annotation was computed. [2020-10-23 18:47:29,818 INFO L274 CegarLoopResult]: For program point L314(lines 314 543) no Hoare annotation was computed. [2020-10-23 18:47:29,818 INFO L274 CegarLoopResult]: For program point L182(lines 182 633) no Hoare annotation was computed. [2020-10-23 18:47:29,818 INFO L274 CegarLoopResult]: For program point L364(lines 364 514) no Hoare annotation was computed. [2020-10-23 18:47:29,818 INFO L274 CegarLoopResult]: For program point L199(lines 199 621) no Hoare annotation was computed. [2020-10-23 18:47:29,819 INFO L274 CegarLoopResult]: For program point L381(lines 381 502) no Hoare annotation was computed. [2020-10-23 18:47:29,819 INFO L274 CegarLoopResult]: For program point L348(lines 348 520) no Hoare annotation was computed. [2020-10-23 18:47:29,819 INFO L274 CegarLoopResult]: For program point L340(lines 340 526) no Hoare annotation was computed. [2020-10-23 18:47:29,819 INFO L274 CegarLoopResult]: For program point L208(lines 208 616) no Hoare annotation was computed. [2020-10-23 18:47:29,819 INFO L274 CegarLoopResult]: For program point L423(lines 423 480) no Hoare annotation was computed. [2020-10-23 18:47:29,819 INFO L274 CegarLoopResult]: For program point L390(lines 390 497) no Hoare annotation was computed. [2020-10-23 18:47:29,833 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[#t~string4.base,QUANTIFIED] [2020-10-23 18:47:29,834 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[#t~string4.offset,QUANTIFIED] [2020-10-23 18:47:29,836 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-23 18:47:29,837 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-23 18:47:29,845 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[#t~string4.base,QUANTIFIED] [2020-10-23 18:47:29,846 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[#t~string4.offset,QUANTIFIED] [2020-10-23 18:47:29,846 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-23 18:47:29,846 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-23 18:47:29,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 06:47:29 BoogieIcfgContainer [2020-10-23 18:47:29,850 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 18:47:29,852 INFO L168 Benchmark]: Toolchain (without parser) took 165239.98 ms. Allocated memory was 151.0 MB in the beginning and 190.8 MB in the end (delta: 39.8 MB). Free memory was 125.7 MB in the beginning and 58.4 MB in the end (delta: 67.2 MB). Peak memory consumption was 108.0 MB. Max. memory is 8.0 GB. [2020-10-23 18:47:29,853 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 151.0 MB. Free memory is still 122.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 18:47:29,861 INFO L168 Benchmark]: CACSL2BoogieTranslator took 536.09 ms. Allocated memory is still 151.0 MB. Free memory was 125.0 MB in the beginning and 105.4 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-10-23 18:47:29,862 INFO L168 Benchmark]: Boogie Preprocessor took 99.92 ms. Allocated memory is still 151.0 MB. Free memory was 105.4 MB in the beginning and 100.5 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-23 18:47:29,863 INFO L168 Benchmark]: RCFGBuilder took 3510.32 ms. Allocated memory was 151.0 MB in the beginning and 190.8 MB in the end (delta: 39.8 MB). Free memory was 100.5 MB in the beginning and 158.7 MB in the end (delta: -58.2 MB). Peak memory consumption was 55.4 MB. Max. memory is 8.0 GB. [2020-10-23 18:47:29,863 INFO L168 Benchmark]: TraceAbstraction took 161082.89 ms. Allocated memory is still 190.8 MB. Free memory was 158.2 MB in the beginning and 58.4 MB in the end (delta: 99.8 MB). Peak memory consumption was 99.8 MB. Max. memory is 8.0 GB. [2020-10-23 18:47:29,873 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 151.0 MB. Free memory is still 122.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 536.09 ms. Allocated memory is still 151.0 MB. Free memory was 125.0 MB in the beginning and 105.4 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 99.92 ms. Allocated memory is still 151.0 MB. Free memory was 105.4 MB in the beginning and 100.5 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 3510.32 ms. Allocated memory was 151.0 MB in the beginning and 190.8 MB in the end (delta: 39.8 MB). Free memory was 100.5 MB in the beginning and 158.7 MB in the end (delta: -58.2 MB). Peak memory consumption was 55.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 161082.89 ms. Allocated memory is still 190.8 MB. Free memory was 158.2 MB in the beginning and 58.4 MB in the end (delta: 99.8 MB). Peak memory consumption was 99.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[#t~string4.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[#t~string4.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[#t~string4.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[#t~string4.offset,QUANTIFIED] * 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 - 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: 4]: 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: 408]: Loop Invariant [2020-10-23 18:47:29,885 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[#t~string4.base,QUANTIFIED] [2020-10-23 18:47:29,886 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[#t~string4.offset,QUANTIFIED] [2020-10-23 18:47:29,887 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-23 18:47:29,887 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-23 18:47:29,892 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[#t~string4.base,QUANTIFIED] [2020-10-23 18:47:29,892 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[#t~string4.offset,QUANTIFIED] [2020-10-23 18:47:29,892 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-23 18:47:29,892 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((!(\old(Id_MCDC_93) <= 9) || (((((((Id_MCDC_93 + 4294967295) % 4294967296 < 42 && (Id_MCDC_89__Id_MCDC_96 + 4294967295) % 4294967296 < 42) && main__Id_MCDC_119 == 0) && !(492 == (Id_MCDC_89__Id_MCDC_96 + 4294967295) % 4294967296 * 12)) && !(492 == (Id_MCDC_93 + 4294967295) % 4294967296 * 12)) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && Id_MCDC_89__Id_MCDC_95 == 0)) || !(0 < \old(Id_MCDC_93) / 4294967296 + 1)) || (forall #t~string4.offset : int, #t~string4.base : int :: !(48 == unknown-#memory_int-unknown[#t~string4.base][#t~string4.offset])) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 59 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 160.3s, OverallIterations: 4, TraceHistogramMax: 4, AutomataDifference: 92.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 124 SDtfs, 502 SDslu, 1322 SDs, 0 SdLazy, 2620 SolverSat, 214 SolverUnsat, 35 SolverUnknown, 0 SolverNotchecked, 85.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 302 GetRequests, 158 SyntacticMatches, 6 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 956 ImplicationChecksByTransitivity, 8.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=3, 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, 4 MinimizatonAttempts, 9 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 10 PreInvPairs, 15 NumberOfFragments, 280 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 448 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 62.1s SatisfiabilityAnalysisTime, 4.6s InterpolantComputationTime, 403 NumberOfCodeBlocks, 398 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 396 ConstructedInterpolants, 55 QuantifiedInterpolants, 218347 SizeOfPredicates, 34 NumberOfNonLiveVariables, 2686 ConjunctsInSsa, 131 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 13/76 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 correct! Received shutdown request...