/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/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_1-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-1a84f73 [2021-05-01 03:16:49,220 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-01 03:16:49,222 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-01 03:16:49,258 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-01 03:16:49,277 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-01 03:16:49,279 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-01 03:16:49,280 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-01 03:16:49,281 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-01 03:16:49,284 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-01 03:16:49,284 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-01 03:16:49,287 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-01 03:16:49,292 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-01 03:16:49,293 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-01 03:16:49,294 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-01 03:16:49,295 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-01 03:16:49,297 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-01 03:16:49,302 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-01 03:16:49,322 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-05-01 03:16:49,338 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-01 03:16:49,338 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-01 03:16:49,341 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-01 03:16:49,341 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-01 03:16:49,341 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-01 03:16:49,341 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-01 03:16:49,342 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-01 03:16:49,342 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-01 03:16:49,342 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-01 03:16:49,342 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-01 03:16:49,343 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-01 03:16:49,343 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-01 03:16:49,343 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-01 03:16:49,343 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-01 03:16:49,343 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-01 03:16:49,344 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-01 03:16:49,344 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-01 03:16:49,344 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-01 03:16:49,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-01 03:16:49,344 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-01 03:16:49,344 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-01 03:16:49,345 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-05-01 03:16:49,345 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-01 03:16:49,658 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-01 03:16:49,675 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-01 03:16:49,676 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-01 03:16:49,677 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-01 03:16:49,677 INFO L275 PluginConnector]: CDTParser initialized [2021-05-01 03:16:49,678 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_1-2.i [2021-05-01 03:16:49,740 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d62c3338/d0a0d4217ac044d791a49fd801f003e0/FLAG012e6cd40 [2021-05-01 03:16:50,145 INFO L306 CDTParser]: Found 1 translation units. [2021-05-01 03:16:50,146 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_array_index_value_1-2.i [2021-05-01 03:16:50,151 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d62c3338/d0a0d4217ac044d791a49fd801f003e0/FLAG012e6cd40 [2021-05-01 03:16:50,544 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d62c3338/d0a0d4217ac044d791a49fd801f003e0 [2021-05-01 03:16:50,548 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-01 03:16:50,550 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-01 03:16:50,554 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-01 03:16:50,555 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-01 03:16:50,558 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-01 03:16:50,558 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 03:16:50" (1/1) ... [2021-05-01 03:16:50,559 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bf1b0a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:16:50, skipping insertion in model container [2021-05-01 03:16:50,560 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 03:16:50" (1/1) ... [2021-05-01 03:16:50,565 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-01 03:16:50,580 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-01 03:16:50,704 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_array_index_value_1-2.i[921,934] [2021-05-01 03:16:50,731 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 03:16:50,739 INFO L203 MainTranslator]: Completed pre-run [2021-05-01 03:16:50,753 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_array_index_value_1-2.i[921,934] [2021-05-01 03:16:50,770 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 03:16:50,786 INFO L208 MainTranslator]: Completed translation [2021-05-01 03:16:50,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:16:50 WrapperNode [2021-05-01 03:16:50,787 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-01 03:16:50,788 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-01 03:16:50,788 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-01 03:16:50,788 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-01 03:16:50,798 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:16:50" (1/1) ... [2021-05-01 03:16:50,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:16:50" (1/1) ... [2021-05-01 03:16:50,805 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:16:50" (1/1) ... [2021-05-01 03:16:50,806 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:16:50" (1/1) ... [2021-05-01 03:16:50,810 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:16:50" (1/1) ... [2021-05-01 03:16:50,814 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:16:50" (1/1) ... [2021-05-01 03:16:50,815 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:16:50" (1/1) ... [2021-05-01 03:16:50,816 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-01 03:16:50,817 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-01 03:16:50,817 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-01 03:16:50,817 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-01 03:16:50,818 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:16:50" (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 [2021-05-01 03:16:50,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-01 03:16:50,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-01 03:16:50,880 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-01 03:16:50,880 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-05-01 03:16:50,880 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-01 03:16:50,880 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-01 03:16:50,880 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-01 03:16:50,880 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-01 03:16:50,880 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-05-01 03:16:50,880 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-05-01 03:16:50,881 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-01 03:16:50,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-01 03:16:50,881 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-05-01 03:16:50,881 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-01 03:16:50,881 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2021-05-01 03:16:50,881 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-01 03:16:50,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-01 03:16:50,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-01 03:16:50,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-01 03:16:50,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-01 03:16:50,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-01 03:16:50,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-01 03:16:51,171 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-01 03:16:51,172 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-05-01 03:16:51,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 03:16:51 BoogieIcfgContainer [2021-05-01 03:16:51,173 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-01 03:16:51,174 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-05-01 03:16:51,174 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-05-01 03:16:51,175 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-05-01 03:16:51,177 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 03:16:51" (1/1) ... [2021-05-01 03:16:51,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 01.05 03:16:51 BasicIcfg [2021-05-01 03:16:51,213 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-05-01 03:16:51,214 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-01 03:16:51,214 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-01 03:16:51,233 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-01 03:16:51,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.05 03:16:50" (1/4) ... [2021-05-01 03:16:51,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f03681a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 03:16:51, skipping insertion in model container [2021-05-01 03:16:51,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:16:50" (2/4) ... [2021-05-01 03:16:51,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f03681a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 03:16:51, skipping insertion in model container [2021-05-01 03:16:51,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 03:16:51" (3/4) ... [2021-05-01 03:16:51,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f03681a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.05 03:16:51, skipping insertion in model container [2021-05-01 03:16:51,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 01.05 03:16:51" (4/4) ... [2021-05-01 03:16:51,236 INFO L111 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_1-2.iJordan [2021-05-01 03:16:51,241 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-05-01 03:16:51,244 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-01 03:16:51,276 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-01 03:16:51,313 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-01 03:16:51,313 INFO L377 AbstractCegarLoop]: Hoare is false [2021-05-01 03:16:51,313 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-05-01 03:16:51,313 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-01 03:16:51,313 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-01 03:16:51,313 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-01 03:16:51,313 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-01 03:16:51,313 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-01 03:16:51,354 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 15 states have internal predecessors, (20), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-05-01 03:16:51,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-05-01 03:16:51,364 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 03:16:51,364 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 03:16:51,365 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 03:16:51,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 03:16:51,373 INFO L82 PathProgramCache]: Analyzing trace with hash -1941867370, now seen corresponding path program 1 times [2021-05-01 03:16:51,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 03:16:51,381 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385823987] [2021-05-01 03:16:51,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 03:16:51,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:16:51,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:16:51,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:16:51,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:16:51,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:16:51,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 03:16:51,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:16:51,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:16:51,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:16:51,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 03:16:51,625 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 03:16:51,625 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385823987] [2021-05-01 03:16:51,626 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385823987] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 03:16:51,626 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 03:16:51,627 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-01 03:16:51,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261075237] [2021-05-01 03:16:51,639 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-01 03:16:51,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 03:16:51,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-01 03:16:51,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-01 03:16:51,660 INFO L87 Difference]: Start difference. First operand has 22 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 15 states have internal predecessors, (20), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 03:16:51,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 03:16:51,724 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2021-05-01 03:16:51,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-01 03:16:51,727 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2021-05-01 03:16:51,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 03:16:51,733 INFO L225 Difference]: With dead ends: 22 [2021-05-01 03:16:51,733 INFO L226 Difference]: Without dead ends: 15 [2021-05-01 03:16:51,734 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 46.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-01 03:16:51,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-05-01 03:16:51,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-05-01 03:16:51,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 03:16:51,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2021-05-01 03:16:51,762 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 13 [2021-05-01 03:16:51,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 03:16:51,763 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-05-01 03:16:51,763 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 03:16:51,764 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2021-05-01 03:16:51,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-05-01 03:16:51,764 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 03:16:51,765 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 03:16:51,765 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-01 03:16:51,765 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 03:16:51,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 03:16:51,768 INFO L82 PathProgramCache]: Analyzing trace with hash -77985247, now seen corresponding path program 1 times [2021-05-01 03:16:51,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 03:16:51,769 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51310478] [2021-05-01 03:16:51,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 03:16:51,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-05-01 03:16:51,839 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-05-01 03:16:51,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-05-01 03:16:51,872 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-05-01 03:16:51,899 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-05-01 03:16:51,900 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-05-01 03:16:51,901 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-01 03:16:51,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.05 03:16:51 BasicIcfg [2021-05-01 03:16:51,931 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-01 03:16:51,933 INFO L168 Benchmark]: Toolchain (without parser) took 1381.73 ms. Allocated memory is still 181.4 MB. Free memory was 146.6 MB in the beginning and 115.8 MB in the end (delta: 30.8 MB). Peak memory consumption was 29.6 MB. Max. memory is 8.0 GB. [2021-05-01 03:16:51,934 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 181.4 MB. Free memory is still 163.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-01 03:16:51,935 INFO L168 Benchmark]: CACSL2BoogieTranslator took 232.74 ms. Allocated memory is still 181.4 MB. Free memory was 146.4 MB in the beginning and 163.9 MB in the end (delta: -17.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-05-01 03:16:51,936 INFO L168 Benchmark]: Boogie Preprocessor took 28.73 ms. Allocated memory is still 181.4 MB. Free memory was 163.9 MB in the beginning and 162.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-05-01 03:16:51,937 INFO L168 Benchmark]: RCFGBuilder took 356.05 ms. Allocated memory is still 181.4 MB. Free memory was 162.3 MB in the beginning and 147.6 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-05-01 03:16:51,938 INFO L168 Benchmark]: IcfgTransformer took 38.83 ms. Allocated memory is still 181.4 MB. Free memory was 147.6 MB in the beginning and 146.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-05-01 03:16:51,939 INFO L168 Benchmark]: TraceAbstraction took 717.10 ms. Allocated memory is still 181.4 MB. Free memory was 145.9 MB in the beginning and 115.8 MB in the end (delta: 30.1 MB). Peak memory consumption was 30.4 MB. Max. memory is 8.0 GB. [2021-05-01 03:16:51,944 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 181.4 MB. Free memory is still 163.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 232.74 ms. Allocated memory is still 181.4 MB. Free memory was 146.4 MB in the beginning and 163.9 MB in the end (delta: -17.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 28.73 ms. Allocated memory is still 181.4 MB. Free memory was 163.9 MB in the beginning and 162.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 356.05 ms. Allocated memory is still 181.4 MB. Free memory was 162.3 MB in the beginning and 147.6 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * IcfgTransformer took 38.83 ms. Allocated memory is still 181.4 MB. Free memory was 147.6 MB in the beginning and 146.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 717.10 ms. Allocated memory is still 181.4 MB. Free memory was 145.9 MB in the beginning and 115.8 MB in the end (delta: 30.1 MB). Peak memory consumption was 30.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 26]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L35] unsigned int array[10000]; [L36] unsigned int index = 0; [L37] unsigned int tmp = 0; VAL [array={3:0}, index=0, tmp=0] [L39] COND TRUE 1 [L40] index = __VERIFIER_nondet_uint() [L41] COND TRUE index >= 10000 VAL [array={3:0}, index=10000, tmp=0] [L48] EXPR tmp < 10000 && array[tmp] == tmp [L48] EXPR array[tmp] [L48] EXPR tmp < 10000 && array[tmp] == tmp VAL [array={3:0}, array[tmp]=6, index=10000, tmp=0, tmp < 10000 && array[tmp] == tmp=0] [L48] CALL __VERIFIER_assert(tmp < 10000 && array[tmp] == tmp) VAL [\old(cond)=0] [L25] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L26] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 591.2ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 26.4ms, AutomataDifference: 93.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 24.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 21 SDtfs, 5 SDslu, 4 SDs, 0 SdLazy, 13 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 27.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 46.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 16.1ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 19.9ms SsaConstructionTime, 88.1ms SatisfiabilityAnalysisTime, 139.7ms InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...