/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/nla-digbench-scaling/geo1-u_valuebound10.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-a47f07a [2021-04-16 01:36:47,359 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-16 01:36:47,361 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-16 01:36:47,381 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-16 01:36:47,382 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-16 01:36:47,382 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-16 01:36:47,383 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-16 01:36:47,385 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-16 01:36:47,386 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-16 01:36:47,387 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-16 01:36:47,387 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-16 01:36:47,388 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-16 01:36:47,389 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-16 01:36:47,389 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-16 01:36:47,390 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-16 01:36:47,391 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-16 01:36:47,391 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-16 01:36:47,392 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-16 01:36:47,394 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-16 01:36:47,395 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-16 01:36:47,396 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-16 01:36:47,397 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-16 01:36:47,398 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-16 01:36:47,398 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-16 01:36:47,400 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-04-16 01:36:47,400 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-04-16 01:36:47,400 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-04-16 01:36:47,401 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-04-16 01:36:47,401 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-04-16 01:36:47,402 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-04-16 01:36:47,402 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-16 01:36:47,402 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-16 01:36:47,403 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-16 01:36:47,403 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-16 01:36:47,404 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-16 01:36:47,404 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-16 01:36:47,404 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-16 01:36:47,405 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-16 01:36:47,405 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-16 01:36:47,405 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-16 01:36:47,406 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-16 01:36:47,409 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 [2021-04-16 01:36:47,424 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-16 01:36:47,424 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-16 01:36:47,425 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-16 01:36:47,425 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-16 01:36:47,425 INFO L138 SettingsManager]: * Use SBE=true [2021-04-16 01:36:47,425 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-16 01:36:47,425 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-16 01:36:47,426 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-16 01:36:47,426 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-16 01:36:47,426 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-16 01:36:47,426 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-16 01:36:47,426 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-16 01:36:47,426 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-16 01:36:47,426 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-16 01:36:47,426 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-16 01:36:47,426 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-16 01:36:47,427 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-16 01:36:47,427 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-16 01:36:47,427 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-16 01:36:47,427 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-16 01:36:47,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-16 01:36:47,427 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-16 01:36:47,427 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-16 01:36:47,428 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-16 01:36:47,428 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-16 01:36:47,428 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-16 01:36:47,428 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-04-16 01:36:47,428 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-04-16 01:36:47,428 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-16 01:36:47,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-16 01:36:47,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-16 01:36:47,716 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-16 01:36:47,717 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-16 01:36:47,717 INFO L275 PluginConnector]: CDTParser initialized [2021-04-16 01:36:47,718 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/geo1-u_valuebound10.c [2021-04-16 01:36:47,776 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3980d920/cc21819ae8a74ba9b48185abc46660f2/FLAGee7bc02d5 [2021-04-16 01:36:48,097 INFO L306 CDTParser]: Found 1 translation units. [2021-04-16 01:36:48,098 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/geo1-u_valuebound10.c [2021-04-16 01:36:48,102 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3980d920/cc21819ae8a74ba9b48185abc46660f2/FLAGee7bc02d5 [2021-04-16 01:36:48,115 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3980d920/cc21819ae8a74ba9b48185abc46660f2 [2021-04-16 01:36:48,118 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-16 01:36:48,119 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-04-16 01:36:48,122 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-16 01:36:48,122 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-16 01:36:48,124 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-16 01:36:48,125 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 01:36:48" (1/1) ... [2021-04-16 01:36:48,126 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b020d5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 01:36:48, skipping insertion in model container [2021-04-16 01:36:48,126 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 01:36:48" (1/1) ... [2021-04-16 01:36:48,130 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-16 01:36:48,141 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-16 01:36:48,249 WARN L226 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_valuebound10.c[563,576] [2021-04-16 01:36:48,262 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-16 01:36:48,267 INFO L203 MainTranslator]: Completed pre-run [2021-04-16 01:36:48,275 WARN L226 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_valuebound10.c[563,576] [2021-04-16 01:36:48,288 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-16 01:36:48,298 INFO L208 MainTranslator]: Completed translation [2021-04-16 01:36:48,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 01:36:48 WrapperNode [2021-04-16 01:36:48,299 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-16 01:36:48,299 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-16 01:36:48,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-16 01:36:48,302 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-16 01:36:48,309 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 01:36:48" (1/1) ... [2021-04-16 01:36:48,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 01:36:48" (1/1) ... [2021-04-16 01:36:48,316 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 01:36:48" (1/1) ... [2021-04-16 01:36:48,316 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 01:36:48" (1/1) ... [2021-04-16 01:36:48,324 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 01:36:48" (1/1) ... [2021-04-16 01:36:48,328 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 01:36:48" (1/1) ... [2021-04-16 01:36:48,329 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 01:36:48" (1/1) ... [2021-04-16 01:36:48,345 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-16 01:36:48,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-16 01:36:48,346 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-16 01:36:48,346 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-16 01:36:48,347 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 01:36:48" (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 [2021-04-16 01:36:48,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-04-16 01:36:48,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-16 01:36:48,434 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-04-16 01:36:48,434 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-04-16 01:36:48,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-04-16 01:36:48,434 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-04-16 01:36:48,435 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-04-16 01:36:48,435 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-04-16 01:36:48,435 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-04-16 01:36:48,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-16 01:36:48,435 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_unsigned_int [2021-04-16 01:36:48,435 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-04-16 01:36:48,436 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-04-16 01:36:48,436 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-04-16 01:36:48,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-04-16 01:36:48,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-16 01:36:48,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-16 01:36:48,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-16 01:36:48,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-04-16 01:36:48,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-16 01:36:48,634 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-16 01:36:48,634 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-04-16 01:36:48,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 01:36:48 BoogieIcfgContainer [2021-04-16 01:36:48,635 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-16 01:36:48,636 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-16 01:36:48,636 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-16 01:36:48,638 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-16 01:36:48,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.04 01:36:48" (1/3) ... [2021-04-16 01:36:48,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45bb5e3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.04 01:36:48, skipping insertion in model container [2021-04-16 01:36:48,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 01:36:48" (2/3) ... [2021-04-16 01:36:48,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45bb5e3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.04 01:36:48, skipping insertion in model container [2021-04-16 01:36:48,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 01:36:48" (3/3) ... [2021-04-16 01:36:48,640 INFO L111 eAbstractionObserver]: Analyzing ICFG geo1-u_valuebound10.c [2021-04-16 01:36:48,643 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-16 01:36:48,645 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-16 01:36:48,655 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-04-16 01:36:48,667 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-16 01:36:48,667 INFO L377 AbstractCegarLoop]: Hoare is true [2021-04-16 01:36:48,667 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-16 01:36:48,667 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-16 01:36:48,667 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-16 01:36:48,667 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-16 01:36:48,667 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-16 01:36:48,667 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-16 01:36:48,677 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) [2021-04-16 01:36:48,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-04-16 01:36:48,679 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 01:36:48,680 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 01:36:48,680 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 01:36:48,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 01:36:48,683 INFO L82 PathProgramCache]: Analyzing trace with hash 1335806002, now seen corresponding path program 1 times [2021-04-16 01:36:48,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-16 01:36:48,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462057715] [2021-04-16 01:36:48,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 01:36:48,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 01:36:48,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:48,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:48,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:48,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:48,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 01:36:48,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 01:36:48,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:48,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:48,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-04-16 01:36:48,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 01:36:48,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:48,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:48,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:48,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:48,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-04-16 01:36:48,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 01:36:48,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:48,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:48,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:48,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:48,898 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-04-16 01:36:48,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462057715] [2021-04-16 01:36:48,899 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 01:36:48,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-16 01:36:48,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161437273] [2021-04-16 01:36:48,903 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-16 01:36:48,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-16 01:36:48,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-16 01:36:48,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-16 01:36:48,913 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) [2021-04-16 01:36:48,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 01:36:48,981 INFO L93 Difference]: Finished difference Result 53 states and 68 transitions. [2021-04-16 01:36:48,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-16 01:36:48,983 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 [2021-04-16 01:36:48,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 01:36:48,987 INFO L225 Difference]: With dead ends: 53 [2021-04-16 01:36:48,987 INFO L226 Difference]: Without dead ends: 25 [2021-04-16 01:36:48,989 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 36.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-16 01:36:48,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-04-16 01:36:49,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2021-04-16 01:36:49,018 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) [2021-04-16 01:36:49,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2021-04-16 01:36:49,020 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 23 [2021-04-16 01:36:49,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 01:36:49,020 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2021-04-16 01:36:49,021 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) [2021-04-16 01:36:49,021 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2021-04-16 01:36:49,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-04-16 01:36:49,022 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 01:36:49,022 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 01:36:49,022 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-16 01:36:49,022 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 01:36:49,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 01:36:49,029 INFO L82 PathProgramCache]: Analyzing trace with hash 736000694, now seen corresponding path program 1 times [2021-04-16 01:36:49,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-16 01:36:49,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637027403] [2021-04-16 01:36:49,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 01:36:49,050 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-04-16 01:36:49,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1194835902] [2021-04-16 01:36:49,051 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 [2021-04-16 01:36:49,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 01:36:49,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 15 conjunts are in the unsatisfiable core [2021-04-16 01:36:49,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-16 01:36:49,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:49,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:49,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:49,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:49,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:49,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:49,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:49,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:49,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:49,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:49,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:49,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:49,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:49,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:49,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:49,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:49,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:49,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:49,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:49,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:49,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:49,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:49,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:49,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:49,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:49,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:49,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:49,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:49,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 01:36:49,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 01:36:49,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 01:36:49,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 01:36:49,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-04-16 01:36:49,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 01:36:49,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 01:36:49,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 01:36:49,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 01:36:49,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 01:36:49,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 01:36:49,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 01:36:49,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-16 01:36:49,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-16 01:36:49,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-16 01:36:49,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-16 01:36:49,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-16 01:36:49,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-16 01:36:49,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-16 01:36:49,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-16 01:36:49,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 01:36:49,171 INFO L142 QuantifierPusher]: treesize reduction 3, result has 70.0 percent of original size [2021-04-16 01:36:49,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-16 01:36:49,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-04-16 01:36:49,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 01:36:49,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-16 01:36:49,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-04-16 01:36:49,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:49,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:49,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:49,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:49,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:49,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:49,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:49,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:49,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:49,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:49,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:49,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:49,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:49,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:49,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-16 01:36:49,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-16 01:36:49,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-16 01:36:49,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-16 01:36:49,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-16 01:36:49,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-16 01:36:49,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-16 01:36:49,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-16 01:36:49,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-16 01:36:49,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-16 01:36:49,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-16 01:36:49,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-16 01:36:49,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 01:36:49,229 INFO L142 QuantifierPusher]: treesize reduction 3, result has 70.0 percent of original size [2021-04-16 01:36:49,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-16 01:36:49,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-16 01:36:49,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 01:36:49,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-16 01:36:49,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-16 01:36:49,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 01:36:49,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 01:36:49,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-16 01:36:49,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 01:36:49,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 01:36:49,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 01:36:49,253 INFO L142 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-04-16 01:36:49,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:49,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:49,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:49,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 01:36:49,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 01:36:49,257 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-16 01:36:49,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637027403] [2021-04-16 01:36:49,258 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-04-16 01:36:49,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1194835902] [2021-04-16 01:36:49,258 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-04-16 01:36:49,258 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-04-16 01:36:49,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780710669] [2021-04-16 01:36:49,259 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-04-16 01:36:49,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-16 01:36:49,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-04-16 01:36:49,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-04-16 01:36:49,260 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 7 states have internal predecessors, (15), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-04-16 01:36:49,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 01:36:49,344 INFO L93 Difference]: Finished difference Result 35 states and 38 transitions. [2021-04-16 01:36:49,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-16 01:36:49,344 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 7 states have internal predecessors, (15), 3 states have call successors, (5), 2 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 [2021-04-16 01:36:49,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 01:36:49,346 INFO L225 Difference]: With dead ends: 35 [2021-04-16 01:36:49,346 INFO L226 Difference]: Without dead ends: 33 [2021-04-16 01:36:49,347 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 47.1ms TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-04-16 01:36:49,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-04-16 01:36:49,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2021-04-16 01:36:49,361 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) [2021-04-16 01:36:49,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2021-04-16 01:36:49,362 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 23 [2021-04-16 01:36:49,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 01:36:49,363 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2021-04-16 01:36:49,363 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 7 states have internal predecessors, (15), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-04-16 01:36:49,363 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2021-04-16 01:36:49,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-04-16 01:36:49,364 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 01:36:49,364 INFO L519 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] [2021-04-16 01:36:49,576 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-04-16 01:36:49,577 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 01:36:49,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 01:36:49,577 INFO L82 PathProgramCache]: Analyzing trace with hash -1598096837, now seen corresponding path program 1 times [2021-04-16 01:36:49,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-16 01:36:49,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96406519] [2021-04-16 01:36:49,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 01:36:49,595 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-04-16 01:36:49,595 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [161337265] [2021-04-16 01:36:49,595 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 [2021-04-16 01:36:49,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-16 01:36:49,635 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-16 01:36:49,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-16 01:36:49,647 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-16 01:36:49,668 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-16 01:36:49,669 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-04-16 01:36:49,869 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-16 01:36:49,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.04 01:36:49 BoogieIcfgContainer [2021-04-16 01:36:49,889 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-16 01:36:49,889 INFO L168 Benchmark]: Toolchain (without parser) took 1770.30 ms. Allocated memory is still 206.6 MB. Free memory was 172.4 MB in the beginning and 159.2 MB in the end (delta: 13.3 MB). Peak memory consumption was 14.1 MB. Max. memory is 8.0 GB. [2021-04-16 01:36:49,890 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 206.6 MB. Free memory is still 189.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-04-16 01:36:49,890 INFO L168 Benchmark]: CACSL2BoogieTranslator took 177.17 ms. Allocated memory is still 206.6 MB. Free memory was 172.2 MB in the beginning and 162.5 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-04-16 01:36:49,890 INFO L168 Benchmark]: Boogie Preprocessor took 46.14 ms. Allocated memory is still 206.6 MB. Free memory was 162.5 MB in the beginning and 161.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-04-16 01:36:49,890 INFO L168 Benchmark]: RCFGBuilder took 289.20 ms. Allocated memory is still 206.6 MB. Free memory was 161.1 MB in the beginning and 175.7 MB in the end (delta: -14.6 MB). Peak memory consumption was 4.3 MB. Max. memory is 8.0 GB. [2021-04-16 01:36:49,891 INFO L168 Benchmark]: TraceAbstraction took 1252.58 ms. Allocated memory is still 206.6 MB. Free memory was 175.2 MB in the beginning and 159.2 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 8.0 GB. [2021-04-16 01:36:49,892 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 206.6 MB. Free memory is still 189.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 177.17 ms. Allocated memory is still 206.6 MB. Free memory was 172.2 MB in the beginning and 162.5 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 46.14 ms. Allocated memory is still 206.6 MB. Free memory was 162.5 MB in the beginning and 161.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 289.20 ms. Allocated memory is still 206.6 MB. Free memory was 161.1 MB in the beginning and 175.7 MB in the end (delta: -14.6 MB). Peak memory consumption was 4.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1252.58 ms. Allocated memory is still 206.6 MB. Free memory was 175.2 MB in the beginning and 159.2 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 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<=10) VAL [\old(cond)=1] [L13] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L26] RET assume_abort_if_not(z>=0 && z<=10) VAL [z=0] [L27] k = __VERIFIER_nondet_unsigned_int() [L28] CALL assume_abort_if_not(k>=0 && k<=10) VAL [\old(cond)=1] [L13] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L28] RET assume_abort_if_not(k>=0 && k<=10) 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 6 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1204.0ms, OverallIterations: 3, TraceHistogramMax: 2, EmptinessCheckTime: 7.0ms, AutomataDifference: 173.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 46 SDtfs, 31 SDslu, 100 SDs, 0 SdLazy, 70 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 80.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 83.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=2, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 37.2ms AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 29.5ms SsaConstructionTime, 63.9ms SatisfiabilityAnalysisTime, 271.9ms InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 124 SizeOfPredicates, 2 NumberOfNonLiveVariables, 109 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 5/8 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...