/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/modsf.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-25 14:46:05,043 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-25 14:46:05,048 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 14:46:05,091 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 14:46:05,091 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 14:46:05,099 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 14:46:05,102 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 14:46:05,105 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 14:46:05,108 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 14:46:05,113 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 14:46:05,114 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 14:46:05,116 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 14:46:05,116 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 14:46:05,120 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 14:46:05,124 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 14:46:05,127 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 14:46:05,129 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 14:46:05,130 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 14:46:05,131 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 14:46:05,142 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 14:46:05,144 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 14:46:05,145 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 14:46:05,147 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 14:46:05,147 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 14:46:05,160 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 14:46:05,160 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 14:46:05,160 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 14:46:05,161 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 14:46:05,169 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 14:46:05,170 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 14:46:05,170 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 14:46:05,171 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 14:46:05,174 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 14:46:05,175 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 14:46:05,176 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 14:46:05,177 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 14:46:05,179 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 14:46:05,179 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 14:46:05,180 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 14:46:05,181 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 14:46:05,182 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 14:46:05,183 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-25 14:46:05,227 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-25 14:46:05,227 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 14:46:05,230 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 14:46:05,230 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-25 14:46:05,230 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-25 14:46:05,230 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 14:46:05,231 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-25 14:46:05,231 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-25 14:46:05,231 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-25 14:46:05,231 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-25 14:46:05,234 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 14:46:05,234 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 14:46:05,234 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 14:46:05,234 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-25 14:46:05,234 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-25 14:46:05,235 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-25 14:46:05,235 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-25 14:46:05,235 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 14:46:05,235 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-25 14:46:05,235 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-25 14:46:05,235 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-25 14:46:05,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 14:46:05,236 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 14:46:05,236 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 14:46:05,236 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 14:46:05,236 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-25 14:46:05,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 14:46:05,237 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 14:46:05,237 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-25 14:46:05,237 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true;
[2020-09-25 14:46:05,669 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 14:46:05,695 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 14:46:05,700 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 14:46:05,702 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-25 14:46:05,702 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-25 14:46:05,704 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/modsf.c
[2020-09-25 14:46:05,797 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/935d49965/802bcc46f8274b9984faa5f236963a5c/FLAG2cad8489c
[2020-09-25 14:46:06,336 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-25 14:46:06,337 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/modsf.c
[2020-09-25 14:46:06,350 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/935d49965/802bcc46f8274b9984faa5f236963a5c/FLAG2cad8489c
[2020-09-25 14:46:06,686 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/935d49965/802bcc46f8274b9984faa5f236963a5c
[2020-09-25 14:46:06,702 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 14:46:06,709 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 14:46:06,712 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 14:46:06,712 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 14:46:06,717 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 14:46:06,718 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:46:06" (1/1) ...
[2020-09-25 14:46:06,723 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1848833b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:46:06, skipping insertion in model container
[2020-09-25 14:46:06,723 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:46:06" (1/1) ...
[2020-09-25 14:46:06,733 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-25 14:46:06,767 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-25 14:46:07,009 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 14:46:07,021 INFO L203 MainTranslator]: Completed pre-run
[2020-09-25 14:46:07,046 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 14:46:07,147 INFO L208 MainTranslator]: Completed translation
[2020-09-25 14:46:07,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:46:07 WrapperNode
[2020-09-25 14:46:07,148 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 14:46:07,148 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 14:46:07,149 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 14:46:07,149 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 14:46:07,163 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:46:07" (1/1) ...
[2020-09-25 14:46:07,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:46:07" (1/1) ...
[2020-09-25 14:46:07,183 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:46:07" (1/1) ...
[2020-09-25 14:46:07,184 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:46:07" (1/1) ...
[2020-09-25 14:46:07,195 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:46:07" (1/1) ...
[2020-09-25 14:46:07,202 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:46:07" (1/1) ...
[2020-09-25 14:46:07,204 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:46:07" (1/1) ...
[2020-09-25 14:46:07,211 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 14:46:07,212 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 14:46:07,212 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 14:46:07,212 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-25 14:46:07,216 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:46:07" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/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
[2020-09-25 14:46:07,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 14:46:07,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 14:46:07,297 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2020-09-25 14:46:07,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2020-09-25 14:46:07,298 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 14:46:07,298 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 14:46:07,298 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2020-09-25 14:46:07,298 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2020-09-25 14:46:07,299 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2020-09-25 14:46:07,299 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 14:46:07,299 INFO L130 BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 14:46:07,299 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-25 14:46:07,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 14:46:07,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 14:46:07,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 14:46:07,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 14:46:07,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 14:46:07,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 14:46:07,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 14:46:07,717 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 14:46:07,717 INFO L295 CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 14:46:07,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:46:07 BoogieIcfgContainer
[2020-09-25 14:46:07,723 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 14:46:07,724 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 14:46:07,724 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 14:46:07,728 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-25 14:46:07,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:46:06" (1/3) ...
[2020-09-25 14:46:07,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46f458f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:46:07, skipping insertion in model container
[2020-09-25 14:46:07,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:46:07" (2/3) ...
[2020-09-25 14:46:07,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46f458f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:46:07, skipping insertion in model container
[2020-09-25 14:46:07,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:46:07" (3/3) ...
[2020-09-25 14:46:07,732 INFO L109 eAbstractionObserver]: Analyzing ICFG modsf.c
[2020-09-25 14:46:07,744 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 14:46:07,755 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 14:46:07,776 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 14:46:07,803 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-25 14:46:07,803 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-25 14:46:07,803 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 14:46:07,804 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 14:46:07,804 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 14:46:07,804 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-25 14:46:07,804 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 14:46:07,804 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 14:46:07,826 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states.
[2020-09-25 14:46:07,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38
[2020-09-25 14:46:07,835 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 14:46:07,836 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, 1, 1, 1]
[2020-09-25 14:46:07,836 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 14:46:07,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 14:46:07,843 INFO L82 PathProgramCache]: Analyzing trace with hash 731228111, now seen corresponding path program 1 times
[2020-09-25 14:46:07,852 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 14:46:07,852 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [759391224]
[2020-09-25 14:46:07,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 14:46:07,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:46:08,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:46:08,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:46:08,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:46:08,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:46:08,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:46:08,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48
[2020-09-25 14:46:08,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4
[2020-09-25 14:46:08,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 344
[2020-09-25 14:46:08,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:46:08,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:46:08,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:46:08,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36
[2020-09-25 14:46:08,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:46:08,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5
[2020-09-25 14:46:08,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 14:46:08,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:46:08,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:46:08,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:46:08,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 14:46:08,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:46:08,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-25 14:46:08,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:46:08,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:46:08,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:46:08,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:46:08,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:46:08,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:46:08,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-09-25 14:46:08,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:46:08,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:46:08,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:46:08,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 14:46:08,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:46:08,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 14:46:08,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:46:08,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:46:08,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:46:08,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:46:08,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:46:08,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:46:08,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 14:46:08,485 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [759391224]
[2020-09-25 14:46:08,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 14:46:08,488 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-25 14:46:08,489 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84812448]
[2020-09-25 14:46:08,497 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-25 14:46:08,498 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 14:46:08,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-25 14:46:08,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-25 14:46:08,520 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 3 states.
[2020-09-25 14:46:08,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 14:46:08,757 INFO L93 Difference]: Finished difference Result 145 states and 168 transitions.
[2020-09-25 14:46:08,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-25 14:46:08,760 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37
[2020-09-25 14:46:08,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 14:46:08,773 INFO L225 Difference]: With dead ends: 145
[2020-09-25 14:46:08,773 INFO L226 Difference]: Without dead ends: 72
[2020-09-25 14:46:08,778 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-25 14:46:08,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states.
[2020-09-25 14:46:08,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72.
[2020-09-25 14:46:08,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states.
[2020-09-25 14:46:08,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 76 transitions.
[2020-09-25 14:46:08,838 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 76 transitions. Word has length 37
[2020-09-25 14:46:08,839 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 14:46:08,839 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 76 transitions.
[2020-09-25 14:46:08,839 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-25 14:46:08,839 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 76 transitions.
[2020-09-25 14:46:08,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38
[2020-09-25 14:46:08,841 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 14:46:08,842 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, 1, 1, 1]
[2020-09-25 14:46:08,842 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 14:46:08,843 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 14:46:08,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 14:46:08,844 INFO L82 PathProgramCache]: Analyzing trace with hash 681190783, now seen corresponding path program 1 times
[2020-09-25 14:46:08,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 14:46:08,844 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1839740036]
[2020-09-25 14:46:08,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 14:46:08,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:46:08,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:46:08,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:46:08,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:46:09,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:46:09,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:46:09,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:46:09,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:46:09,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:46:10,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:46:10,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48
[2020-09-25 14:46:10,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8
[2020-09-25 14:46:10,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1569
[2020-09-25 14:46:10,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:46:10,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:46:10,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3
[2020-09-25 14:46:10,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18
[2020-09-25 14:46:10,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21
[2020-09-25 14:46:10,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:46:10,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 14:46:10,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:46:10,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:46:10,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:46:10,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 14:46:10,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:46:10,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 14:46:10,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:46:10,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:46:10,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 14:46:10,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:46:10,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 14:46:10,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:46:10,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-09-25 14:46:10,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 14:46:10,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 14:46:10,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 14:46:10,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 14:46:10,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 14:46:10,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 14:46:10,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 14:46:10,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5
[2020-09-25 14:46:10,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 14:46:10,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 14:46:10,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 14:46:10,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 14:46:10,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 14:46:10,545 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1839740036]
[2020-09-25 14:46:10,545 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 14:46:10,545 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 14:46:10,545 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667932218]
[2020-09-25 14:46:10,547 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 14:46:10,548 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 14:46:10,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 14:46:10,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-09-25 14:46:10,548 INFO L87 Difference]: Start difference. First operand 72 states and 76 transitions. Second operand 5 states.
[2020-09-25 14:46:10,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 14:46:10,967 INFO L93 Difference]: Finished difference Result 121 states and 132 transitions.
[2020-09-25 14:46:10,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-09-25 14:46:10,968 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37
[2020-09-25 14:46:10,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 14:46:10,969 INFO L225 Difference]: With dead ends: 121
[2020-09-25 14:46:10,970 INFO L226 Difference]: Without dead ends: 77
[2020-09-25 14:46:10,973 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2020-09-25 14:46:10,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states.
[2020-09-25 14:46:10,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 76.
[2020-09-25 14:46:10,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states.
[2020-09-25 14:46:10,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 80 transitions.
[2020-09-25 14:46:10,998 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 80 transitions. Word has length 37
[2020-09-25 14:46:10,998 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 14:46:10,998 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 80 transitions.
[2020-09-25 14:46:10,999 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 14:46:10,999 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 80 transitions.
[2020-09-25 14:46:11,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70
[2020-09-25 14:46:11,005 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 14:46:11,005 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, 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, 1]
[2020-09-25 14:46:11,005 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 14:46:11,007 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 14:46:11,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 14:46:11,008 INFO L82 PathProgramCache]: Analyzing trace with hash -1093467533, now seen corresponding path program 1 times
[2020-09-25 14:46:11,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 14:46:11,008 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [898667903]
[2020-09-25 14:46:11,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 14:46:11,032 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2020-09-25 14:46:11,033 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility
[2020-09-25 14:46:11,033 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 14:46:11,040 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 14:46:11,077 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually.
[2020-09-25 14:46:11,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:46:11 BoogieIcfgContainer
[2020-09-25 14:46:11,078 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 14:46:11,083 INFO L168 Benchmark]: Toolchain (without parser) took 4376.41 ms. Allocated memory was 140.5 MB in the beginning and 244.8 MB in the end (delta: 104.3 MB). Free memory was 104.0 MB in the beginning and 185.7 MB in the end (delta: -81.7 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB.
[2020-09-25 14:46:11,085 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB.
[2020-09-25 14:46:11,086 INFO L168 Benchmark]: CACSL2BoogieTranslator took 436.18 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 103.3 MB in the beginning and 182.4 MB in the end (delta: -79.1 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB.
[2020-09-25 14:46:11,087 INFO L168 Benchmark]: Boogie Preprocessor took 62.97 ms. Allocated memory is still 203.4 MB. Free memory was 182.4 MB in the beginning and 180.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB.
[2020-09-25 14:46:11,088 INFO L168 Benchmark]: RCFGBuilder took 511.38 ms. Allocated memory is still 203.4 MB. Free memory was 180.0 MB in the beginning and 157.8 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB.
[2020-09-25 14:46:11,091 INFO L168 Benchmark]: TraceAbstraction took 3353.37 ms. Allocated memory was 203.4 MB in the beginning and 244.8 MB in the end (delta: 41.4 MB). Free memory was 157.2 MB in the beginning and 185.7 MB in the end (delta: -28.5 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB.
[2020-09-25 14:46:11,104 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.23 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 436.18 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 103.3 MB in the beginning and 182.4 MB in the end (delta: -79.1 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 62.97 ms. Allocated memory is still 203.4 MB. Free memory was 182.4 MB in the beginning and 180.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 511.38 ms. Allocated memory is still 203.4 MB. Free memory was 180.0 MB in the beginning and 157.8 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 3353.37 ms. Allocated memory was 203.4 MB in the beginning and 244.8 MB in the end (delta: 41.4 MB). Free memory was 157.2 MB in the beginning and 185.7 MB in the end (delta: -28.5 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- UnprovableResult [Line: 13]: Unable to prove that call of __VERIFIER_error() unreachable
Unable to prove that call of __VERIFIER_error() unreachable
Reason: unable to decide satisfiability of path constraint.
Possible FailurePath:
[L17] int N;
[L21] N = __VERIFIER_nondet_int()
[L22] COND FALSE !(N <= 0)
[L23] CALL assume_abort_if_not(N <= 2147483647/sizeof(int))
[L11] COND FALSE !(!cond)
[L23] RET assume_abort_if_not(N <= 2147483647/sizeof(int))
[L25] int i;
[L26] long long sum[1];
[L27] long long *a = malloc(sizeof(long long)*N);
[L29] sum[0] = 0
[L30] i=0
[L30] COND TRUE i<N
[L32] a[i] = 1
[L30] i++
[L30] COND FALSE !(i<N)
[L35] i=0
[L35] COND TRUE i<N
[L37] EXPR sum[0]
[L37] EXPR a[i]
[L37] sum[0] = sum[0] + a[i]
[L35] i++
[L35] COND FALSE !(i<N)
[L40] i=0
[L40] COND TRUE i<N
[L42] EXPR a[i]
[L42] EXPR sum[0]
[L42] a[i] = a[i] + sum[0]
[L40] i++
[L40] COND FALSE !(i<N)
[L45] i=0
[L45] COND TRUE i<N
[L47] EXPR a[i]
[L47] EXPR sum[0]
[L47] a[i] = a[i] % sum[0]
[L45] i++
[L45] COND FALSE !(i<N)
[L50] i=0
[L50] COND TRUE i<N
[L52] EXPR a[i]
[L52] CALL __VERIFIER_assert(a[i] == 1)
[L13] COND TRUE !(cond)
[L13] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 5 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 3.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 138 SDtfs, 102 SDslu, 32 SDs, 0 SdLazy, 180 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=81occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 4536 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
Received shutdown request...