/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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/ss1f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 22:50:01,584 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 22:50:01,590 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 22:50:01,610 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 22:50:01,611 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 22:50:01,613 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 22:50:01,615 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 22:50:01,625 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 22:50:01,627 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 22:50:01,628 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 22:50:01,630 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 22:50:01,632 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 22:50:01,633 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 22:50:01,636 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 22:50:01,638 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 22:50:01,639 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 22:50:01,642 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 22:50:01,643 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 22:50:01,645 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 22:50:01,649 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 22:50:01,651 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 22:50:01,652 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 22:50:01,653 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 22:50:01,653 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 22:50:01,655 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 22:50:01,663 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 22:50:01,664 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 22:50:01,664 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 22:50:01,665 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-17 22:50:01,679 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 22:50:01,679 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 22:50:01,680 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 22:50:01,680 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 22:50:01,681 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 22:50:01,681 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 22:50:01,681 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 22:50:01,681 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 22:50:01,681 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 22:50:01,682 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 22:50:01,682 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 22:50:01,682 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 22:50:01,682 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 22:50:01,682 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 22:50:01,683 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 22:50:01,683 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 22:50:01,683 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 22:50:01,683 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 22:50:01,683 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 22:50:01,684 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 22:50:01,684 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 22:50:01,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 22:50:01,684 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 22:50:01,684 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 22:50:01,685 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 22:50:01,685 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 22:50:01,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 22:50:01,685 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 22:50:01,685 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 22:50:01,685 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 22:50:01,954 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 22:50:01,967 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 22:50:01,970 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 22:50:01,971 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 22:50:01,972 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 22:50:01,972 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/ss1f.c [2020-07-17 22:50:02,032 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f59d85882/723f2facd0314e9ab19d2e15ec107950/FLAG13e65562b [2020-07-17 22:50:02,450 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 22:50:02,450 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/ss1f.c [2020-07-17 22:50:02,457 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f59d85882/723f2facd0314e9ab19d2e15ec107950/FLAG13e65562b [2020-07-17 22:50:02,863 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f59d85882/723f2facd0314e9ab19d2e15ec107950 [2020-07-17 22:50:02,872 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 22:50:02,875 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 22:50:02,877 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 22:50:02,877 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 22:50:02,881 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 22:50:02,883 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:50:02" (1/1) ... [2020-07-17 22:50:02,885 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d94d95a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:02, skipping insertion in model container [2020-07-17 22:50:02,886 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:50:02" (1/1) ... [2020-07-17 22:50:02,894 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 22:50:02,914 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 22:50:03,157 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:50:03,167 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 22:50:03,192 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:50:03,212 INFO L208 MainTranslator]: Completed translation [2020-07-17 22:50:03,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:03 WrapperNode [2020-07-17 22:50:03,213 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 22:50:03,214 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 22:50:03,214 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 22:50:03,214 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 22:50:03,310 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:03" (1/1) ... [2020-07-17 22:50:03,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:03" (1/1) ... [2020-07-17 22:50:03,333 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:03" (1/1) ... [2020-07-17 22:50:03,333 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:03" (1/1) ... [2020-07-17 22:50:03,349 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:03" (1/1) ... [2020-07-17 22:50:03,357 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:03" (1/1) ... [2020-07-17 22:50:03,358 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:03" (1/1) ... [2020-07-17 22:50:03,361 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 22:50:03,361 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 22:50:03,361 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 22:50:03,361 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 22:50:03,362 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 22:50:03,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 22:50:03,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 22:50:03,420 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-17 22:50:03,420 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-17 22:50:03,420 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 22:50:03,420 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 22:50:03,421 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-17 22:50:03,421 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-17 22:50:03,421 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-17 22:50:03,421 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 22:50:03,421 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-17 22:50:03,421 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 22:50:03,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 22:50:03,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-17 22:50:03,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 22:50:03,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 22:50:03,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 22:50:03,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 22:50:03,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 22:50:03,819 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 22:50:03,819 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-17 22:50:03,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:50:03 BoogieIcfgContainer [2020-07-17 22:50:03,823 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 22:50:03,824 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 22:50:03,824 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 22:50:03,827 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 22:50:03,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 10:50:02" (1/3) ... [2020-07-17 22:50:03,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d04cef3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:50:03, skipping insertion in model container [2020-07-17 22:50:03,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:03" (2/3) ... [2020-07-17 22:50:03,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d04cef3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:50:03, skipping insertion in model container [2020-07-17 22:50:03,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:50:03" (3/3) ... [2020-07-17 22:50:03,830 INFO L109 eAbstractionObserver]: Analyzing ICFG ss1f.c [2020-07-17 22:50:03,840 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 22:50:03,848 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 22:50:03,862 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 22:50:03,885 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 22:50:03,885 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 22:50:03,886 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 22:50:03,886 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 22:50:03,886 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 22:50:03,886 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 22:50:03,886 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 22:50:03,886 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 22:50:03,905 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-07-17 22:50:03,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-17 22:50:03,913 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:50:03,914 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] [2020-07-17 22:50:03,915 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:50:03,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:50:03,920 INFO L82 PathProgramCache]: Analyzing trace with hash 1562148239, now seen corresponding path program 1 times [2020-07-17 22:50:03,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:50:03,928 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818326871] [2020-07-17 22:50:03,928 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:50:04,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:50:04,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:50:04,139 INFO L280 TraceCheckUtils]: 0: Hoare triple {49#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~N~0 := 0; {40#true} is VALID [2020-07-17 22:50:04,140 INFO L280 TraceCheckUtils]: 1: Hoare triple {40#true} assume true; {40#true} is VALID [2020-07-17 22:50:04,140 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {40#true} {40#true} #95#return; {40#true} is VALID [2020-07-17 22:50:04,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:50:04,150 INFO L280 TraceCheckUtils]: 0: Hoare triple {40#true} ~cond := #in~cond; {40#true} is VALID [2020-07-17 22:50:04,151 INFO L280 TraceCheckUtils]: 1: Hoare triple {40#true} assume 0 == ~cond;assume false; {41#false} is VALID [2020-07-17 22:50:04,151 INFO L280 TraceCheckUtils]: 2: Hoare triple {41#false} assume true; {41#false} is VALID [2020-07-17 22:50:04,152 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {41#false} {40#true} #91#return; {41#false} is VALID [2020-07-17 22:50:04,154 INFO L263 TraceCheckUtils]: 0: Hoare triple {40#true} call ULTIMATE.init(); {49#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-17 22:50:04,154 INFO L280 TraceCheckUtils]: 1: Hoare triple {49#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~N~0 := 0; {40#true} is VALID [2020-07-17 22:50:04,155 INFO L280 TraceCheckUtils]: 2: Hoare triple {40#true} assume true; {40#true} is VALID [2020-07-17 22:50:04,155 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {40#true} {40#true} #95#return; {40#true} is VALID [2020-07-17 22:50:04,155 INFO L263 TraceCheckUtils]: 4: Hoare triple {40#true} call #t~ret13 := main(); {40#true} is VALID [2020-07-17 22:50:04,156 INFO L280 TraceCheckUtils]: 5: Hoare triple {40#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~N~0 := #t~nondet0;havoc #t~nondet0; {40#true} is VALID [2020-07-17 22:50:04,156 INFO L280 TraceCheckUtils]: 6: Hoare triple {40#true} assume !(~N~0 <= 0); {40#true} is VALID [2020-07-17 22:50:04,157 INFO L263 TraceCheckUtils]: 7: Hoare triple {40#true} call assume_abort_if_not((if ~N~0 <= 536870911 then 1 else 0)); {40#true} is VALID [2020-07-17 22:50:04,157 INFO L280 TraceCheckUtils]: 8: Hoare triple {40#true} ~cond := #in~cond; {40#true} is VALID [2020-07-17 22:50:04,158 INFO L280 TraceCheckUtils]: 9: Hoare triple {40#true} assume 0 == ~cond;assume false; {41#false} is VALID [2020-07-17 22:50:04,158 INFO L280 TraceCheckUtils]: 10: Hoare triple {41#false} assume true; {41#false} is VALID [2020-07-17 22:50:04,159 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {41#false} {40#true} #91#return; {41#false} is VALID [2020-07-17 22:50:04,159 INFO L280 TraceCheckUtils]: 12: Hoare triple {41#false} havoc ~i~0;call ~#sum~0.base, ~#sum~0.offset := #Ultimate.allocOnStack(8);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(8 * ~N~0);~a~0.base, ~a~0.offset := #t~malloc1.base, #t~malloc1.offset;call write~int(0, ~#sum~0.base, ~#sum~0.offset, 8);~i~0 := 0; {41#false} is VALID [2020-07-17 22:50:04,160 INFO L280 TraceCheckUtils]: 13: Hoare triple {41#false} assume !(~i~0 < ~N~0); {41#false} is VALID [2020-07-17 22:50:04,160 INFO L280 TraceCheckUtils]: 14: Hoare triple {41#false} ~i~0 := 0; {41#false} is VALID [2020-07-17 22:50:04,161 INFO L280 TraceCheckUtils]: 15: Hoare triple {41#false} assume !(~i~0 < ~N~0); {41#false} is VALID [2020-07-17 22:50:04,161 INFO L280 TraceCheckUtils]: 16: Hoare triple {41#false} ~i~0 := 0; {41#false} is VALID [2020-07-17 22:50:04,161 INFO L280 TraceCheckUtils]: 17: Hoare triple {41#false} assume !(~i~0 < ~N~0); {41#false} is VALID [2020-07-17 22:50:04,162 INFO L280 TraceCheckUtils]: 18: Hoare triple {41#false} ~i~0 := 0; {41#false} is VALID [2020-07-17 22:50:04,162 INFO L280 TraceCheckUtils]: 19: Hoare triple {41#false} assume !true; {41#false} is VALID [2020-07-17 22:50:04,163 INFO L280 TraceCheckUtils]: 20: Hoare triple {41#false} call #t~mem12 := read~int(~#sum~0.base, ~#sum~0.offset, 8); {41#false} is VALID [2020-07-17 22:50:04,163 INFO L263 TraceCheckUtils]: 21: Hoare triple {41#false} call __VERIFIER_assert((if #t~mem12 == ~N~0 * (2 + ~N~0) then 1 else 0)); {41#false} is VALID [2020-07-17 22:50:04,164 INFO L280 TraceCheckUtils]: 22: Hoare triple {41#false} ~cond := #in~cond; {41#false} is VALID [2020-07-17 22:50:04,164 INFO L280 TraceCheckUtils]: 23: Hoare triple {41#false} assume 0 == ~cond; {41#false} is VALID [2020-07-17 22:50:04,164 INFO L280 TraceCheckUtils]: 24: Hoare triple {41#false} assume !false; {41#false} is VALID [2020-07-17 22:50:04,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 22:50:04,169 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818326871] [2020-07-17 22:50:04,170 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 22:50:04,170 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 22:50:04,171 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179574212] [2020-07-17 22:50:04,177 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-07-17 22:50:04,180 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:50:04,183 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-17 22:50:04,242 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:50:04,243 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 22:50:04,243 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:50:04,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 22:50:04,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 22:50:04,256 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 3 states. [2020-07-17 22:50:04,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:04,465 INFO L93 Difference]: Finished difference Result 64 states and 83 transitions. [2020-07-17 22:50:04,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 22:50:04,466 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-07-17 22:50:04,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:50:04,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-17 22:50:04,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 83 transitions. [2020-07-17 22:50:04,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-17 22:50:04,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 83 transitions. [2020-07-17 22:50:04,485 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 83 transitions. [2020-07-17 22:50:04,649 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 83 edges. 83 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:50:04,662 INFO L225 Difference]: With dead ends: 64 [2020-07-17 22:50:04,662 INFO L226 Difference]: Without dead ends: 30 [2020-07-17 22:50:04,666 INFO L675 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 [2020-07-17 22:50:04,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-07-17 22:50:04,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-07-17 22:50:04,716 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:50:04,716 INFO L82 GeneralOperation]: Start isEquivalent. First operand 30 states. Second operand 30 states. [2020-07-17 22:50:04,717 INFO L74 IsIncluded]: Start isIncluded. First operand 30 states. Second operand 30 states. [2020-07-17 22:50:04,717 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 30 states. [2020-07-17 22:50:04,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:04,722 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2020-07-17 22:50:04,722 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2020-07-17 22:50:04,722 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:50:04,723 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:50:04,723 INFO L74 IsIncluded]: Start isIncluded. First operand 30 states. Second operand 30 states. [2020-07-17 22:50:04,723 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 30 states. [2020-07-17 22:50:04,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:04,727 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2020-07-17 22:50:04,727 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2020-07-17 22:50:04,728 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:50:04,728 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:50:04,728 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:50:04,728 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:50:04,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-07-17 22:50:04,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2020-07-17 22:50:04,733 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 25 [2020-07-17 22:50:04,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:50:04,733 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2020-07-17 22:50:04,733 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 22:50:04,734 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2020-07-17 22:50:04,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-17 22:50:04,735 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:50:04,735 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] [2020-07-17 22:50:04,735 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 22:50:04,736 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:50:04,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:50:04,736 INFO L82 PathProgramCache]: Analyzing trace with hash 369304979, now seen corresponding path program 1 times [2020-07-17 22:50:04,736 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:50:04,737 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017349535] [2020-07-17 22:50:04,737 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:50:04,761 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-07-17 22:50:04,762 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [558539345] [2020-07-17 22:50:04,762 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 22:50:04,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:50:04,817 INFO L264 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-17 22:50:04,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:50:04,835 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 22:50:04,914 INFO L263 TraceCheckUtils]: 0: Hoare triple {236#true} call ULTIMATE.init(); {236#true} is VALID [2020-07-17 22:50:04,914 INFO L280 TraceCheckUtils]: 1: Hoare triple {236#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~N~0 := 0; {236#true} is VALID [2020-07-17 22:50:04,914 INFO L280 TraceCheckUtils]: 2: Hoare triple {236#true} assume true; {236#true} is VALID [2020-07-17 22:50:04,915 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {236#true} {236#true} #95#return; {236#true} is VALID [2020-07-17 22:50:04,915 INFO L263 TraceCheckUtils]: 4: Hoare triple {236#true} call #t~ret13 := main(); {236#true} is VALID [2020-07-17 22:50:04,915 INFO L280 TraceCheckUtils]: 5: Hoare triple {236#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~N~0 := #t~nondet0;havoc #t~nondet0; {236#true} is VALID [2020-07-17 22:50:04,916 INFO L280 TraceCheckUtils]: 6: Hoare triple {236#true} assume !(~N~0 <= 0); {259#(< 0 ~N~0)} is VALID [2020-07-17 22:50:04,917 INFO L263 TraceCheckUtils]: 7: Hoare triple {259#(< 0 ~N~0)} call assume_abort_if_not((if ~N~0 <= 536870911 then 1 else 0)); {259#(< 0 ~N~0)} is VALID [2020-07-17 22:50:04,918 INFO L280 TraceCheckUtils]: 8: Hoare triple {259#(< 0 ~N~0)} ~cond := #in~cond; {259#(< 0 ~N~0)} is VALID [2020-07-17 22:50:04,919 INFO L280 TraceCheckUtils]: 9: Hoare triple {259#(< 0 ~N~0)} assume !(0 == ~cond); {259#(< 0 ~N~0)} is VALID [2020-07-17 22:50:04,919 INFO L280 TraceCheckUtils]: 10: Hoare triple {259#(< 0 ~N~0)} assume true; {259#(< 0 ~N~0)} is VALID [2020-07-17 22:50:04,920 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {259#(< 0 ~N~0)} {259#(< 0 ~N~0)} #91#return; {259#(< 0 ~N~0)} is VALID [2020-07-17 22:50:04,922 INFO L280 TraceCheckUtils]: 12: Hoare triple {259#(< 0 ~N~0)} havoc ~i~0;call ~#sum~0.base, ~#sum~0.offset := #Ultimate.allocOnStack(8);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(8 * ~N~0);~a~0.base, ~a~0.offset := #t~malloc1.base, #t~malloc1.offset;call write~int(0, ~#sum~0.base, ~#sum~0.offset, 8);~i~0 := 0; {278#(and (<= main_~i~0 0) (< 0 ~N~0))} is VALID [2020-07-17 22:50:04,923 INFO L280 TraceCheckUtils]: 13: Hoare triple {278#(and (<= main_~i~0 0) (< 0 ~N~0))} assume !(~i~0 < ~N~0); {237#false} is VALID [2020-07-17 22:50:04,923 INFO L280 TraceCheckUtils]: 14: Hoare triple {237#false} ~i~0 := 0; {237#false} is VALID [2020-07-17 22:50:04,924 INFO L280 TraceCheckUtils]: 15: Hoare triple {237#false} assume !(~i~0 < ~N~0); {237#false} is VALID [2020-07-17 22:50:04,924 INFO L280 TraceCheckUtils]: 16: Hoare triple {237#false} ~i~0 := 0; {237#false} is VALID [2020-07-17 22:50:04,924 INFO L280 TraceCheckUtils]: 17: Hoare triple {237#false} assume !(~i~0 < ~N~0); {237#false} is VALID [2020-07-17 22:50:04,924 INFO L280 TraceCheckUtils]: 18: Hoare triple {237#false} ~i~0 := 0; {237#false} is VALID [2020-07-17 22:50:04,925 INFO L280 TraceCheckUtils]: 19: Hoare triple {237#false} assume !(~i~0 < ~N~0); {237#false} is VALID [2020-07-17 22:50:04,925 INFO L280 TraceCheckUtils]: 20: Hoare triple {237#false} call #t~mem12 := read~int(~#sum~0.base, ~#sum~0.offset, 8); {237#false} is VALID [2020-07-17 22:50:04,925 INFO L263 TraceCheckUtils]: 21: Hoare triple {237#false} call __VERIFIER_assert((if #t~mem12 == ~N~0 * (2 + ~N~0) then 1 else 0)); {237#false} is VALID [2020-07-17 22:50:04,926 INFO L280 TraceCheckUtils]: 22: Hoare triple {237#false} ~cond := #in~cond; {237#false} is VALID [2020-07-17 22:50:04,926 INFO L280 TraceCheckUtils]: 23: Hoare triple {237#false} assume 0 == ~cond; {237#false} is VALID [2020-07-17 22:50:04,926 INFO L280 TraceCheckUtils]: 24: Hoare triple {237#false} assume !false; {237#false} is VALID [2020-07-17 22:50:04,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 22:50:04,929 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017349535] [2020-07-17 22:50:04,929 WARN L333 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-07-17 22:50:04,929 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558539345] [2020-07-17 22:50:04,930 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 22:50:04,930 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 22:50:04,930 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834261382] [2020-07-17 22:50:04,932 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-07-17 22:50:04,932 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:50:04,932 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-17 22:50:04,969 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:50:04,970 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 22:50:04,970 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:50:04,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 22:50:04,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-17 22:50:04,971 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand 4 states. [2020-07-17 22:50:05,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:05,135 INFO L93 Difference]: Finished difference Result 53 states and 62 transitions. [2020-07-17 22:50:05,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-17 22:50:05,135 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-07-17 22:50:05,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:50:05,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-17 22:50:05,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 62 transitions. [2020-07-17 22:50:05,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-17 22:50:05,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 62 transitions. [2020-07-17 22:50:05,142 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 62 transitions. [2020-07-17 22:50:05,236 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 62 edges. 62 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:50:05,237 INFO L225 Difference]: With dead ends: 53 [2020-07-17 22:50:05,238 INFO L226 Difference]: Without dead ends: 38 [2020-07-17 22:50:05,239 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-17 22:50:05,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-07-17 22:50:05,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 34. [2020-07-17 22:50:05,269 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:50:05,269 INFO L82 GeneralOperation]: Start isEquivalent. First operand 38 states. Second operand 34 states. [2020-07-17 22:50:05,270 INFO L74 IsIncluded]: Start isIncluded. First operand 38 states. Second operand 34 states. [2020-07-17 22:50:05,270 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 34 states. [2020-07-17 22:50:05,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:05,273 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2020-07-17 22:50:05,273 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2020-07-17 22:50:05,274 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:50:05,274 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:50:05,274 INFO L74 IsIncluded]: Start isIncluded. First operand 34 states. Second operand 38 states. [2020-07-17 22:50:05,274 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 38 states. [2020-07-17 22:50:05,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:05,278 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2020-07-17 22:50:05,278 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2020-07-17 22:50:05,278 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:50:05,279 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:50:05,279 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:50:05,279 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:50:05,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-07-17 22:50:05,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2020-07-17 22:50:05,282 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 25 [2020-07-17 22:50:05,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:50:05,283 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2020-07-17 22:50:05,283 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 22:50:05,283 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2020-07-17 22:50:05,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-07-17 22:50:05,284 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:50:05,284 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] [2020-07-17 22:50:05,500 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-07-17 22:50:05,500 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:50:05,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:50:05,501 INFO L82 PathProgramCache]: Analyzing trace with hash -1815337701, now seen corresponding path program 1 times [2020-07-17 22:50:05,501 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:50:05,501 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647026028] [2020-07-17 22:50:05,502 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:50:05,542 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-07-17 22:50:05,543 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [557141743] [2020-07-17 22:50:05,543 INFO L94 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 [2020-07-17 22:50:05,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 22:50:05,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 22:50:05,684 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-17 22:50:05,684 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 22:50:05,894 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 22:50:05,984 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-17 22:50:05,984 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-17 22:50:05,984 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-17 22:50:05,984 WARN L170 areAnnotationChecker]: assume_abort_if_notENTRY has no Hoare annotation [2020-07-17 22:50:05,984 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-17 22:50:05,985 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2020-07-17 22:50:05,985 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-17 22:50:05,985 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-17 22:50:05,985 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-17 22:50:05,987 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2020-07-17 22:50:05,987 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2020-07-17 22:50:05,987 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-17 22:50:05,987 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-17 22:50:05,987 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-17 22:50:05,988 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-17 22:50:05,988 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-17 22:50:05,988 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-17 22:50:05,993 WARN L170 areAnnotationChecker]: L11-2 has no Hoare annotation [2020-07-17 22:50:05,993 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-17 22:50:05,994 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-17 22:50:05,994 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-17 22:50:05,994 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-17 22:50:05,994 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-17 22:50:05,995 WARN L170 areAnnotationChecker]: L13-3 has no Hoare annotation [2020-07-17 22:50:05,995 WARN L170 areAnnotationChecker]: assume_abort_if_notEXIT has no Hoare annotation [2020-07-17 22:50:05,996 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-17 22:50:05,996 WARN L170 areAnnotationChecker]: L23-1 has no Hoare annotation [2020-07-17 22:50:05,997 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2020-07-17 22:50:05,997 WARN L170 areAnnotationChecker]: L30-3 has no Hoare annotation [2020-07-17 22:50:05,997 WARN L170 areAnnotationChecker]: L30-3 has no Hoare annotation [2020-07-17 22:50:05,997 WARN L170 areAnnotationChecker]: L30-3 has no Hoare annotation [2020-07-17 22:50:05,998 WARN L170 areAnnotationChecker]: L49-1 has no Hoare annotation [2020-07-17 22:50:05,998 WARN L170 areAnnotationChecker]: L30-4 has no Hoare annotation [2020-07-17 22:50:05,998 WARN L170 areAnnotationChecker]: L30-2 has no Hoare annotation [2020-07-17 22:50:05,998 WARN L170 areAnnotationChecker]: L34-3 has no Hoare annotation [2020-07-17 22:50:05,998 WARN L170 areAnnotationChecker]: L34-3 has no Hoare annotation [2020-07-17 22:50:05,999 WARN L170 areAnnotationChecker]: L34-3 has no Hoare annotation [2020-07-17 22:50:05,999 WARN L170 areAnnotationChecker]: L34-4 has no Hoare annotation [2020-07-17 22:50:05,999 WARN L170 areAnnotationChecker]: L34-2 has no Hoare annotation [2020-07-17 22:50:05,999 WARN L170 areAnnotationChecker]: L39-3 has no Hoare annotation [2020-07-17 22:50:05,999 WARN L170 areAnnotationChecker]: L39-3 has no Hoare annotation [2020-07-17 22:50:05,999 WARN L170 areAnnotationChecker]: L39-3 has no Hoare annotation [2020-07-17 22:50:06,000 WARN L170 areAnnotationChecker]: L39-4 has no Hoare annotation [2020-07-17 22:50:06,000 WARN L170 areAnnotationChecker]: L39-2 has no Hoare annotation [2020-07-17 22:50:06,000 WARN L170 areAnnotationChecker]: L44-3 has no Hoare annotation [2020-07-17 22:50:06,000 WARN L170 areAnnotationChecker]: L44-3 has no Hoare annotation [2020-07-17 22:50:06,000 WARN L170 areAnnotationChecker]: L44-3 has no Hoare annotation [2020-07-17 22:50:06,001 WARN L170 areAnnotationChecker]: L44-4 has no Hoare annotation [2020-07-17 22:50:06,001 WARN L170 areAnnotationChecker]: L44-2 has no Hoare annotation [2020-07-17 22:50:06,001 WARN L170 areAnnotationChecker]: L49 has no Hoare annotation [2020-07-17 22:50:06,001 WARN L170 areAnnotationChecker]: L49 has no Hoare annotation [2020-07-17 22:50:06,001 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-17 22:50:06,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 10:50:06 BoogieIcfgContainer [2020-07-17 22:50:06,005 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 22:50:06,010 INFO L168 Benchmark]: Toolchain (without parser) took 3134.62 ms. Allocated memory was 145.8 MB in the beginning and 235.4 MB in the end (delta: 89.7 MB). Free memory was 103.3 MB in the beginning and 93.1 MB in the end (delta: 10.1 MB). Peak memory consumption was 99.8 MB. Max. memory is 7.1 GB. [2020-07-17 22:50:06,012 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 145.8 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-17 22:50:06,013 INFO L168 Benchmark]: CACSL2BoogieTranslator took 336.92 ms. Allocated memory is still 145.8 MB. Free memory was 102.9 MB in the beginning and 91.6 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2020-07-17 22:50:06,016 INFO L168 Benchmark]: Boogie Preprocessor took 147.02 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 91.6 MB in the beginning and 179.7 MB in the end (delta: -88.1 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-07-17 22:50:06,017 INFO L168 Benchmark]: RCFGBuilder took 461.86 ms. Allocated memory is still 202.4 MB. Free memory was 179.7 MB in the beginning and 152.5 MB in the end (delta: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. [2020-07-17 22:50:06,026 INFO L168 Benchmark]: TraceAbstraction took 2181.72 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 151.8 MB in the beginning and 93.1 MB in the end (delta: 58.7 MB). Peak memory consumption was 91.7 MB. Max. memory is 7.1 GB. [2020-07-17 22:50:06,036 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 145.8 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 336.92 ms. Allocated memory is still 145.8 MB. Free memory was 102.9 MB in the beginning and 91.6 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 147.02 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 91.6 MB in the beginning and 179.7 MB in the end (delta: -88.1 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 461.86 ms. Allocated memory is still 202.4 MB. Free memory was 179.7 MB in the beginning and 152.5 MB in the end (delta: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2181.72 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 151.8 MB in the beginning and 93.1 MB in the end (delta: 58.7 MB). Peak memory consumption was 91.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] int N; VAL [\old(N)=5, N=0] [L21] N = __VERIFIER_nondet_int() [L22] COND FALSE !(N <= 0) VAL [\old(N)=0, N=1] [L23] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [\old(cond)=1, \old(N)=0, N=1] [L11] COND FALSE !(!cond) VAL [\old(cond)=1, \old(N)=0, cond=1, N=1] [L23] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [\old(N)=0, N=1] [L25] int i; [L26] long long sum[1]; [L27] long long *a = malloc(sizeof(long long)*N); [L29] sum[0] = 0 [L30] i=0 VAL [\old(N)=0, a={-1:0}, i=0, malloc(sizeof(long long)*N)={-1:0}, N=1, sum={2:0}] [L30] COND TRUE i