/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/array-fpi/indp3f.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-21 16:25:12,590 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 16:25:12,593 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 16:25:12,630 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-21 16:25:12,631 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-21 16:25:12,632 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-21 16:25:12,634 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-21 16:25:12,637 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-21 16:25:12,641 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-21 16:25:12,645 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-21 16:25:12,647 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-21 16:25:12,649 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-21 16:25:12,649 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 16:25:12,651 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 16:25:12,652 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 16:25:12,654 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 16:25:12,655 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 16:25:12,656 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 16:25:12,658 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 16:25:12,661 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 16:25:12,663 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 16:25:12,665 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 16:25:12,667 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 16:25:12,668 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 16:25:12,671 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-21 16:25:12,682 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 16:25:12,683 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 16:25:12,684 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 16:25:12,686 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 [2021-02-21 16:25:12,713 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 16:25:12,714 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 16:25:12,715 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-21 16:25:12,715 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-21 16:25:12,716 INFO L138 SettingsManager]: * Use SBE=true [2021-02-21 16:25:12,716 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 16:25:12,716 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 16:25:12,717 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 16:25:12,717 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 16:25:12,717 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 16:25:12,718 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 16:25:12,718 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 16:25:12,718 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 16:25:12,719 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 16:25:12,719 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 16:25:12,719 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 16:25:12,719 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 16:25:12,720 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 16:25:12,720 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-21 16:25:12,720 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 16:25:12,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 16:25:12,721 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 16:25:12,721 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-21 16:25:12,722 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-21 16:25:12,722 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-21 16:25:12,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-21 16:25:12,722 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 16:25:12,723 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-21 16:25:12,723 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 16:25:13,172 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 16:25:13,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 16:25:13,222 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 16:25:13,224 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 16:25:13,226 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 16:25:13,227 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/indp3f.c [2021-02-21 16:25:13,323 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e26b86cb5/f15eb609c83c48a2a4ad0e10efff2975/FLAG48c969fd7 [2021-02-21 16:25:13,908 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 16:25:13,908 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/indp3f.c [2021-02-21 16:25:13,917 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e26b86cb5/f15eb609c83c48a2a4ad0e10efff2975/FLAG48c969fd7 [2021-02-21 16:25:14,283 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e26b86cb5/f15eb609c83c48a2a4ad0e10efff2975 [2021-02-21 16:25:14,286 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 16:25:14,303 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 16:25:14,305 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 16:25:14,305 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 16:25:14,310 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 16:25:14,311 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:25:14" (1/1) ... [2021-02-21 16:25:14,312 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@929a5e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:25:14, skipping insertion in model container [2021-02-21 16:25:14,312 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:25:14" (1/1) ... [2021-02-21 16:25:14,322 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 16:25:14,339 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 16:25:14,556 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/indp3f.c[589,602] [2021-02-21 16:25:14,589 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 16:25:14,604 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 16:25:14,621 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/indp3f.c[589,602] [2021-02-21 16:25:14,643 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 16:25:14,665 INFO L208 MainTranslator]: Completed translation [2021-02-21 16:25:14,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:25:14 WrapperNode [2021-02-21 16:25:14,667 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 16:25:14,668 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 16:25:14,668 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 16:25:14,671 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 16:25:14,685 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:25:14" (1/1) ... [2021-02-21 16:25:14,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:25:14" (1/1) ... [2021-02-21 16:25:14,707 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:25:14" (1/1) ... [2021-02-21 16:25:14,707 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:25:14" (1/1) ... [2021-02-21 16:25:14,731 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:25:14" (1/1) ... [2021-02-21 16:25:14,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:25:14" (1/1) ... [2021-02-21 16:25:14,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:25:14" (1/1) ... [2021-02-21 16:25:14,750 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 16:25:14,752 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 16:25:14,753 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 16:25:14,753 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 16:25:14,754 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:25:14" (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 [2021-02-21 16:25:14,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 16:25:14,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 16:25:14,858 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 16:25:14,859 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-02-21 16:25:14,859 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-21 16:25:14,859 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 16:25:14,859 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 16:25:14,860 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 16:25:14,861 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 16:25:14,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 16:25:14,862 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-02-21 16:25:14,862 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-21 16:25:14,863 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-21 16:25:14,863 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-21 16:25:14,864 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 16:25:14,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-21 16:25:14,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 16:25:14,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 16:25:14,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 16:25:14,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 16:25:14,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 16:25:14,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 16:25:15,198 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 16:25:15,199 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-21 16:25:15,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:25:15 BoogieIcfgContainer [2021-02-21 16:25:15,200 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 16:25:15,203 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 16:25:15,203 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 16:25:15,207 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 16:25:15,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 04:25:14" (1/3) ... [2021-02-21 16:25:15,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c3bf076 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 04:25:15, skipping insertion in model container [2021-02-21 16:25:15,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:25:14" (2/3) ... [2021-02-21 16:25:15,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c3bf076 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 04:25:15, skipping insertion in model container [2021-02-21 16:25:15,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:25:15" (3/3) ... [2021-02-21 16:25:15,211 INFO L111 eAbstractionObserver]: Analyzing ICFG indp3f.c [2021-02-21 16:25:15,219 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-21 16:25:15,231 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 16:25:15,278 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 16:25:15,326 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 16:25:15,326 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 16:25:15,326 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-21 16:25:15,326 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 16:25:15,326 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 16:25:15,327 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 16:25:15,327 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 16:25:15,327 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 16:25:15,345 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2021-02-21 16:25:15,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-02-21 16:25:15,351 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:25:15,352 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 16:25:15,352 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 16:25:15,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:25:15,359 INFO L82 PathProgramCache]: Analyzing trace with hash -1425380239, now seen corresponding path program 1 times [2021-02-21 16:25:15,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:25:15,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840534766] [2021-02-21 16:25:15,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:25:15,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:25:15,572 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:15,573 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:15,574 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:15,575 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:15,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:25:15,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:25:15,645 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:15,646 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:15,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-02-21 16:25:15,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:25:15,653 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:15,654 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:15,655 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:15,656 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:15,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:25:15,665 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840534766] [2021-02-21 16:25:15,665 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:25:15,666 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-21 16:25:15,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927379071] [2021-02-21 16:25:15,672 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-21 16:25:15,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:25:15,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-21 16:25:15,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-21 16:25:15,691 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 3 states. [2021-02-21 16:25:15,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:25:15,808 INFO L93 Difference]: Finished difference Result 70 states and 93 transitions. [2021-02-21 16:25:15,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-21 16:25:15,810 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2021-02-21 16:25:15,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:25:15,819 INFO L225 Difference]: With dead ends: 70 [2021-02-21 16:25:15,819 INFO L226 Difference]: Without dead ends: 35 [2021-02-21 16:25:15,823 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-21 16:25:15,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-02-21 16:25:15,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-02-21 16:25:15,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2021-02-21 16:25:15,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2021-02-21 16:25:15,871 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 26 [2021-02-21 16:25:15,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:25:15,872 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2021-02-21 16:25:15,872 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-21 16:25:15,872 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2021-02-21 16:25:15,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-02-21 16:25:15,873 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:25:15,874 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 16:25:15,874 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 16:25:15,874 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 16:25:15,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:25:15,875 INFO L82 PathProgramCache]: Analyzing trace with hash 1281239155, now seen corresponding path program 1 times [2021-02-21 16:25:15,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:25:15,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656588311] [2021-02-21 16:25:15,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:25:15,905 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-02-21 16:25:15,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [133108239] [2021-02-21 16:25:15,906 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 [2021-02-21 16:25:16,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:25:16,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 3 conjunts are in the unsatisfiable core [2021-02-21 16:25:16,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-21 16:25:16,030 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,031 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,032 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,032 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,033 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,033 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,034 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,034 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,036 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,036 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,037 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,037 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,038 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,038 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,039 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,039 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,040 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,041 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,041 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,042 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,042 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,043 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,043 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,044 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,045 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,046 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,046 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,047 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,047 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,048 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,049 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,050 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,050 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,051 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,051 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,052 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,052 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,053 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,053 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,054 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,054 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,055 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,055 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,056 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,056 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,057 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,057 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,058 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,059 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:25:16,059 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,060 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:25:16,061 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,061 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:25:16,062 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,062 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:25:16,066 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,067 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:25:16,067 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,068 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:25:16,068 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,069 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:25:16,069 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,070 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:25:16,070 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,071 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:25:16,071 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,072 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:25:16,072 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,073 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:25:16,073 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,074 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:25:16,075 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,075 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:25:16,076 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,076 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:25:16,077 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,078 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:25:16,078 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,079 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:25:16,079 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,080 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:25:16,081 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,081 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:25:16,082 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,082 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:25:16,083 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,083 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:25:16,084 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,085 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:25:16,085 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,086 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:25:16,086 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,087 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:25:16,087 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,088 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:25:16,094 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,095 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 16:25:16,096 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,097 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 16:25:16,098 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,099 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 16:25:16,100 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,101 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 16:25:16,109 WARN L141 QuantifierPusher]: treesize reduction 1, result has 90.9 percent of original size [2021-02-21 16:25:16,111 WARN L147 QuantifierPusher]: treesize reduction 1, result has 90.9 percent of original size 10 [2021-02-21 16:25:16,115 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 16:25:16,137 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,138 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-21 16:25:16,139 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-21 16:25:16,140 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,152 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-21 16:25:16,153 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,154 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,154 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,155 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,155 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,156 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,156 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,157 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,157 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,158 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,159 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,159 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,160 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,160 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,161 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,161 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,162 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,162 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,163 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,163 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,164 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,165 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,165 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,166 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,166 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,167 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,168 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,168 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,169 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,169 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,170 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,170 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,171 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,171 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,172 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,172 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,173 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,173 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,174 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,174 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,175 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,175 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,176 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,176 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,177 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,177 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,178 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,178 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,179 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,179 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,180 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,180 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,181 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,181 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,182 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,182 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,183 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,183 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,184 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,184 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,185 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,185 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,186 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,186 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,186 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,187 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,187 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,188 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,188 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:25:16,189 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:25:16,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:25:16,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656588311] [2021-02-21 16:25:16,198 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-02-21 16:25:16,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [133108239] [2021-02-21 16:25:16,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:25:16,199 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-21 16:25:16,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23563009] [2021-02-21 16:25:16,201 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-21 16:25:16,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:25:16,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-21 16:25:16,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-02-21 16:25:16,202 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand 4 states. [2021-02-21 16:25:16,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:25:16,331 INFO L93 Difference]: Finished difference Result 67 states and 79 transitions. [2021-02-21 16:25:16,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-21 16:25:16,331 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2021-02-21 16:25:16,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:25:16,337 INFO L225 Difference]: With dead ends: 67 [2021-02-21 16:25:16,338 INFO L226 Difference]: Without dead ends: 47 [2021-02-21 16:25:16,340 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-02-21 16:25:16,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-02-21 16:25:16,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 39. [2021-02-21 16:25:16,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2021-02-21 16:25:16,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2021-02-21 16:25:16,374 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 26 [2021-02-21 16:25:16,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:25:16,374 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2021-02-21 16:25:16,374 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-21 16:25:16,374 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2021-02-21 16:25:16,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-02-21 16:25:16,376 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:25:16,376 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 16:25:16,591 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-02-21 16:25:16,592 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 16:25:16,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:25:16,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1000164587, now seen corresponding path program 1 times [2021-02-21 16:25:16,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:25:16,594 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351668427] [2021-02-21 16:25:16,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:25:16,615 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-02-21 16:25:16,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1230554466] [2021-02-21 16:25:16,615 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 [2021-02-21 16:25:16,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 16:25:16,699 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 16:25:16,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 16:25:16,727 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 16:25:16,787 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-21 16:25:16,788 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-21 16:25:16,988 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-21 16:25:17,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 04:25:17 BoogieIcfgContainer [2021-02-21 16:25:17,077 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 16:25:17,078 INFO L168 Benchmark]: Toolchain (without parser) took 2789.90 ms. Allocated memory is still 156.2 MB. Free memory was 130.4 MB in the beginning and 71.7 MB in the end (delta: 58.6 MB). Peak memory consumption was 59.8 MB. Max. memory is 8.0 GB. [2021-02-21 16:25:17,079 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 156.2 MB. Free memory is still 139.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 16:25:17,079 INFO L168 Benchmark]: CACSL2BoogieTranslator took 362.17 ms. Allocated memory is still 156.2 MB. Free memory was 129.2 MB in the beginning and 119.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-02-21 16:25:17,083 INFO L168 Benchmark]: Boogie Preprocessor took 82.12 ms. Allocated memory is still 156.2 MB. Free memory was 119.2 MB in the beginning and 117.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-21 16:25:17,084 INFO L168 Benchmark]: RCFGBuilder took 448.19 ms. Allocated memory is still 156.2 MB. Free memory was 117.4 MB in the beginning and 128.5 MB in the end (delta: -11.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 8.0 GB. [2021-02-21 16:25:17,084 INFO L168 Benchmark]: TraceAbstraction took 1874.67 ms. Allocated memory is still 156.2 MB. Free memory was 128.1 MB in the beginning and 71.7 MB in the end (delta: 56.4 MB). Peak memory consumption was 56.2 MB. Max. memory is 8.0 GB. [2021-02-21 16:25:17,091 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 156.2 MB. Free memory is still 139.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 362.17 ms. Allocated memory is still 156.2 MB. Free memory was 129.2 MB in the beginning and 119.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 82.12 ms. Allocated memory is still 156.2 MB. Free memory was 119.2 MB in the beginning and 117.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 448.19 ms. Allocated memory is still 156.2 MB. Free memory was 117.4 MB in the beginning and 128.5 MB in the end (delta: -11.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1874.67 ms. Allocated memory is still 156.2 MB. Free memory was 128.1 MB in the beginning and 71.7 MB in the end (delta: 56.4 MB). Peak memory consumption was 56.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; VAL [\old(N)=14, N=0] [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) VAL [\old(N)=0, N=1] [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [\old(cond)=1, \old(N)=0, N=1] [L13] COND FALSE !(!cond) VAL [\old(cond)=1, \old(N)=0, cond=1, N=1] [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [\old(N)=0, N=1] [L27] int i; [L28] long long *a = malloc(sizeof(long long)*N); [L30] i=0 VAL [\old(N)=0, a={-1:0}, i=0, malloc(sizeof(long long)*N)={-1:0}, N=1] [L30] COND TRUE i