/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/geo1-u_valuebound50.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-6253b08 [2021-05-06 08:28:37,086 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-06 08:28:37,089 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-06 08:28:37,119 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-06 08:28:37,120 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-06 08:28:37,122 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-06 08:28:37,125 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-06 08:28:37,129 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-06 08:28:37,131 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-06 08:28:37,134 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-06 08:28:37,135 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-06 08:28:37,136 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-06 08:28:37,136 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-06 08:28:37,137 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-06 08:28:37,139 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-06 08:28:37,140 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-06 08:28:37,142 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-06 08:28:37,142 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-06 08:28:37,145 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-06 08:28:37,150 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-06 08:28:37,151 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-06 08:28:37,152 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-06 08:28:37,153 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-06 08:28:37,154 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-06 08:28:37,159 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-06 08:28:37,185 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-06 08:28:37,185 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-06 08:28:37,187 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-06 08:28:37,189 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-05-06 08:28:37,201 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-06 08:28:37,201 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-06 08:28:37,203 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-06 08:28:37,204 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-06 08:28:37,204 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-06 08:28:37,204 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-06 08:28:37,204 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-06 08:28:37,204 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-06 08:28:37,204 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-06 08:28:37,204 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-06 08:28:37,205 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-06 08:28:37,205 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-06 08:28:37,205 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-06 08:28:37,205 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-06 08:28:37,205 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-06 08:28:37,206 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-06 08:28:37,206 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-06 08:28:37,206 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-06 08:28:37,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-06 08:28:37,206 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-06 08:28:37,206 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-06 08:28:37,207 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-05-06 08:28:37,207 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2021-05-06 08:28:37,456 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-06 08:28:37,471 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-06 08:28:37,473 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-06 08:28:37,474 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-06 08:28:37,474 INFO L275 PluginConnector]: CDTParser initialized [2021-05-06 08:28:37,475 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/geo1-u_valuebound50.c [2021-05-06 08:28:37,524 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e36e0807b/020941763b7e4a6faea4c8cc1293e281/FLAG7094f7b58 [2021-05-06 08:28:37,808 INFO L306 CDTParser]: Found 1 translation units. [2021-05-06 08:28:37,808 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/geo1-u_valuebound50.c [2021-05-06 08:28:37,812 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e36e0807b/020941763b7e4a6faea4c8cc1293e281/FLAG7094f7b58 [2021-05-06 08:28:38,262 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e36e0807b/020941763b7e4a6faea4c8cc1293e281 [2021-05-06 08:28:38,264 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-06 08:28:38,266 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-06 08:28:38,270 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-06 08:28:38,270 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-06 08:28:38,273 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-06 08:28:38,274 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.05 08:28:38" (1/1) ... [2021-05-06 08:28:38,274 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f47f74d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 08:28:38, skipping insertion in model container [2021-05-06 08:28:38,274 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.05 08:28:38" (1/1) ... [2021-05-06 08:28:38,280 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-06 08:28:38,291 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-06 08:28:38,373 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/geo1-u_valuebound50.c[563,576] [2021-05-06 08:28:38,381 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-06 08:28:38,386 INFO L203 MainTranslator]: Completed pre-run [2021-05-06 08:28:38,394 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/geo1-u_valuebound50.c[563,576] [2021-05-06 08:28:38,398 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-06 08:28:38,407 INFO L208 MainTranslator]: Completed translation [2021-05-06 08:28:38,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 08:28:38 WrapperNode [2021-05-06 08:28:38,407 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-06 08:28:38,408 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-06 08:28:38,408 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-06 08:28:38,408 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-06 08:28:38,415 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 08:28:38" (1/1) ... [2021-05-06 08:28:38,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 08:28:38" (1/1) ... [2021-05-06 08:28:38,453 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 08:28:38" (1/1) ... [2021-05-06 08:28:38,453 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 08:28:38" (1/1) ... [2021-05-06 08:28:38,456 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 08:28:38" (1/1) ... [2021-05-06 08:28:38,459 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 08:28:38" (1/1) ... [2021-05-06 08:28:38,461 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 08:28:38" (1/1) ... [2021-05-06 08:28:38,468 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-06 08:28:38,469 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-06 08:28:38,469 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-06 08:28:38,469 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-06 08:28:38,470 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 08:28:38" (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 [2021-05-06 08:28:38,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-06 08:28:38,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-06 08:28:38,541 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-06 08:28:38,542 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-05-06 08:28:38,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-06 08:28:38,542 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-06 08:28:38,542 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-06 08:28:38,542 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-06 08:28:38,542 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-06 08:28:38,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-06 08:28:38,543 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_unsigned_int [2021-05-06 08:28:38,543 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-05-06 08:28:38,543 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-06 08:28:38,543 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-06 08:28:38,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-06 08:28:38,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-06 08:28:38,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-06 08:28:38,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-06 08:28:38,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-06 08:28:38,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-06 08:28:38,774 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-06 08:28:38,775 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-05-06 08:28:38,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 08:28:38 BoogieIcfgContainer [2021-05-06 08:28:38,776 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-06 08:28:38,776 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-05-06 08:28:38,776 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-05-06 08:28:38,777 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-05-06 08:28:38,778 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 08:28:38" (1/1) ... [2021-05-06 08:28:38,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.05 08:28:38 BasicIcfg [2021-05-06 08:28:38,787 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-05-06 08:28:38,788 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-06 08:28:38,788 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-06 08:28:38,790 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-06 08:28:38,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.05 08:28:38" (1/4) ... [2021-05-06 08:28:38,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c45f318 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.05 08:28:38, skipping insertion in model container [2021-05-06 08:28:38,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 08:28:38" (2/4) ... [2021-05-06 08:28:38,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c45f318 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.05 08:28:38, skipping insertion in model container [2021-05-06 08:28:38,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 08:28:38" (3/4) ... [2021-05-06 08:28:38,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c45f318 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.05 08:28:38, skipping insertion in model container [2021-05-06 08:28:38,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.05 08:28:38" (4/4) ... [2021-05-06 08:28:38,792 INFO L111 eAbstractionObserver]: Analyzing ICFG geo1-u_valuebound50.cJordan [2021-05-06 08:28:38,795 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-05-06 08:28:38,798 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-06 08:28:38,810 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-06 08:28:38,830 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-06 08:28:38,831 INFO L377 AbstractCegarLoop]: Hoare is false [2021-05-06 08:28:38,831 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-05-06 08:28:38,831 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-06 08:28:38,831 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-06 08:28:38,831 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-06 08:28:38,831 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-06 08:28:38,831 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-06 08:28:38,839 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 19 states have internal predecessors, (24), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-05-06 08:28:38,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-05-06 08:28:38,848 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 08:28:38,848 INFO L523 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 08:28:38,848 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 08:28:38,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 08:28:38,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1045869758, now seen corresponding path program 1 times [2021-05-06 08:28:38,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 08:28:38,857 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959527720] [2021-05-06 08:28:38,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 08:28:38,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 08:28:39,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 08:28:39,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 08:28:39,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-05-06 08:28:39,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 08:28:39,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-05-06 08:28:39,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 08:28:39,063 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-05-06 08:28:39,064 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 08:28:39,064 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959527720] [2021-05-06 08:28:39,064 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959527720] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 08:28:39,065 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 08:28:39,065 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-06 08:28:39,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436905056] [2021-05-06 08:28:39,068 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-06 08:28:39,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 08:28:39,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-06 08:28:39,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-06 08:28:39,078 INFO L87 Difference]: Start difference. First operand has 30 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 19 states have internal predecessors, (24), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-05-06 08:28:39,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 08:28:39,145 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2021-05-06 08:28:39,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-06 08:28:39,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2021-05-06 08:28:39,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 08:28:39,156 INFO L225 Difference]: With dead ends: 30 [2021-05-06 08:28:39,157 INFO L226 Difference]: Without dead ends: 25 [2021-05-06 08:28:39,158 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 43.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-06 08:28:39,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-05-06 08:28:39,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2021-05-06 08:28:39,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 16 states have internal predecessors, (17), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-05-06 08:28:39,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2021-05-06 08:28:39,183 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 23 [2021-05-06 08:28:39,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 08:28:39,184 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2021-05-06 08:28:39,184 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-05-06 08:28:39,184 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2021-05-06 08:28:39,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-05-06 08:28:39,186 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 08:28:39,186 INFO L523 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 08:28:39,186 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-06 08:28:39,186 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 08:28:39,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 08:28:39,188 INFO L82 PathProgramCache]: Analyzing trace with hash 745967104, now seen corresponding path program 1 times [2021-05-06 08:28:39,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 08:28:39,188 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245024135] [2021-05-06 08:28:39,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 08:28:39,223 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-06 08:28:39,223 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [836864842] [2021-05-06 08:28:39,223 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 [2021-05-06 08:28:39,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 08:28:39,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 7 conjunts are in the unsatisfiable core [2021-05-06 08:28:39,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 08:28:39,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 08:28:39,465 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-05-06 08:28:39,465 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 08:28:39,465 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245024135] [2021-05-06 08:28:39,465 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-06 08:28:39,465 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836864842] [2021-05-06 08:28:39,466 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [836864842] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 08:28:39,466 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 08:28:39,466 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-06 08:28:39,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119156642] [2021-05-06 08:28:39,468 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-06 08:28:39,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 08:28:39,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-06 08:28:39,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-06 08:28:39,469 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-05-06 08:28:39,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 08:28:39,519 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2021-05-06 08:28:39,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-06 08:28:39,520 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2021-05-06 08:28:39,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 08:28:39,521 INFO L225 Difference]: With dead ends: 33 [2021-05-06 08:28:39,521 INFO L226 Difference]: Without dead ends: 33 [2021-05-06 08:28:39,521 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.7ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-05-06 08:28:39,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-05-06 08:28:39,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2021-05-06 08:28:39,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 19 states have (on average 1.105263157894737) internal successors, (21), 21 states have internal predecessors, (21), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2021-05-06 08:28:39,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2021-05-06 08:28:39,525 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 23 [2021-05-06 08:28:39,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 08:28:39,526 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2021-05-06 08:28:39,526 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-05-06 08:28:39,526 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2021-05-06 08:28:39,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-05-06 08:28:39,527 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 08:28:39,527 INFO L523 BasicCegarLoop]: trace histogram [2, 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] [2021-05-06 08:28:39,728 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-05-06 08:28:39,728 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 08:28:39,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 08:28:39,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1484020197, now seen corresponding path program 1 times [2021-05-06 08:28:39,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 08:28:39,729 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384920754] [2021-05-06 08:28:39,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 08:28:39,738 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-06 08:28:39,738 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2048069322] [2021-05-06 08:28:39,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-05-06 08:28:39,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-05-06 08:28:39,805 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-05-06 08:28:39,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-05-06 08:28:39,820 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-05-06 08:28:39,849 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-05-06 08:28:39,850 INFO L624 BasicCegarLoop]: Counterexample might be feasible [2021-05-06 08:28:40,056 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 08:28:40,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.05 08:28:40 BasicIcfg [2021-05-06 08:28:40,075 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-06 08:28:40,076 INFO L168 Benchmark]: Toolchain (without parser) took 1810.23 ms. Allocated memory is still 255.9 MB. Free memory was 221.2 MB in the beginning and 202.5 MB in the end (delta: 18.7 MB). Peak memory consumption was 19.5 MB. Max. memory is 8.0 GB. [2021-05-06 08:28:40,076 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 255.9 MB. Free memory is still 237.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-06 08:28:40,077 INFO L168 Benchmark]: CACSL2BoogieTranslator took 137.70 ms. Allocated memory is still 255.9 MB. Free memory was 221.0 MB in the beginning and 211.3 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-05-06 08:28:40,077 INFO L168 Benchmark]: Boogie Preprocessor took 59.98 ms. Allocated memory is still 255.9 MB. Free memory was 211.3 MB in the beginning and 239.8 MB in the end (delta: -28.4 MB). Peak memory consumption was 3.2 MB. Max. memory is 8.0 GB. [2021-05-06 08:28:40,078 INFO L168 Benchmark]: RCFGBuilder took 306.99 ms. Allocated memory is still 255.9 MB. Free memory was 239.2 MB in the beginning and 225.1 MB in the end (delta: 14.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-05-06 08:28:40,078 INFO L168 Benchmark]: IcfgTransformer took 11.18 ms. Allocated memory is still 255.9 MB. Free memory was 225.1 MB in the beginning and 223.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-05-06 08:28:40,078 INFO L168 Benchmark]: TraceAbstraction took 1287.25 ms. Allocated memory is still 255.9 MB. Free memory was 223.5 MB in the beginning and 202.5 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.5 MB. Max. memory is 8.0 GB. [2021-05-06 08:28:40,080 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 255.9 MB. Free memory is still 237.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 137.70 ms. Allocated memory is still 255.9 MB. Free memory was 221.0 MB in the beginning and 211.3 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 59.98 ms. Allocated memory is still 255.9 MB. Free memory was 211.3 MB in the beginning and 239.8 MB in the end (delta: -28.4 MB). Peak memory consumption was 3.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 306.99 ms. Allocated memory is still 255.9 MB. Free memory was 239.2 MB in the beginning and 225.1 MB in the end (delta: 14.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * IcfgTransformer took 11.18 ms. Allocated memory is still 255.9 MB. Free memory was 225.1 MB in the beginning and 223.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1287.25 ms. Allocated memory is still 255.9 MB. Free memory was 223.5 MB in the beginning and 202.5 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L23] unsigned int z, k; [L24] long long x, y, c; [L25] z = __VERIFIER_nondet_unsigned_int() [L26] CALL assume_abort_if_not(z>=0 && z<=50) VAL [\old(cond)=1] [L13] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L26] RET assume_abort_if_not(z>=0 && z<=50) VAL [z=0] [L27] k = __VERIFIER_nondet_unsigned_int() [L28] CALL assume_abort_if_not(k>=0 && k<=50) VAL [\old(cond)=1] [L13] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L28] RET assume_abort_if_not(k>=0 && k<=50) VAL [k=0, z=0] [L30] x = 1 [L31] y = z [L32] c = 1 VAL [c=1, k=0, x=1, y=0, z=0] [L34] COND TRUE 1 VAL [c=1, k=0, x=1, y=0, z=0] [L35] CALL __VERIFIER_assert(x*z - x - y + 1 == 0) VAL [\old(cond)=1] [L16] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L35] RET __VERIFIER_assert(x*z - x - y + 1 == 0) VAL [c=1, k=0, x=1, y=0, z=0] [L37] COND TRUE !(c < k) VAL [c=1, k=0, x=1, y=0, z=0] [L46] x = x * (z - 1) VAL [c=1, k=0, x=4294967295, y=0, z=0] [L48] CALL __VERIFIER_assert(1 + x - y == 0) VAL [\old(cond)=0] [L16] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L18] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1228.4ms, OverallIterations: 3, TraceHistogramMax: 2, EmptinessCheckTime: 13.0ms, AutomataDifference: 141.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 50 SDtfs, 23 SDslu, 68 SDs, 0 SdLazy, 29 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 66.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 64.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=2, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 19.7ms AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 32.7ms SsaConstructionTime, 117.9ms SatisfiabilityAnalysisTime, 262.3ms InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 94 SizeOfPredicates, 1 NumberOfNonLiveVariables, 109 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 8/8 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...